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|United States Army Air Corps|
|Active||2 July 1926 – 9 March 1942|
|Allegiance||United States of America|
|Role||Aviation support to ground operations|
|Size||14,650 men, 1,646 aircraft (1932)
16,863 men, 855 aircraft (1936)
152,125 men, 6,777 aircraft (1941)
|Part of||United States Army|
|March||Army Air Corps|
|Disbanded||18 September 1947|
|Maj.Gen. Henry H. Arnold|
The United States Army Air Corps (USAAC) was the statutory forerunner of the United States Air Force. Renamed from the Air Service on 2 July 1926, it was part of the United States Army and the predecessor of the United States Army Air Forces (USAAF), established in 1941. Although abolished as an administrative entity in 1942, the Air Corps (AC) remained as one of the combat arms of the Army until 1947.
The Air Corps was renamed by the United States Congress largely as a compromise between advocates of a separate air arm and those of the Army high command who viewed the aviation arm as an auxiliary branch to support the ground forces. Although its members worked to promote the concept of airpower and an autonomous air force between 1926 and 1941, its primary purpose by Army policy remained support of ground forces rather than independent operations.
On 1 March 1935, still struggling with the issue of a separate air arm, the Army activated the General Headquarters Air Force for centralized control of aviation combat units within the continental United States, separate from but coordinate with the Air Corps. The separation of the Air Corps from control of its combat units caused problems of unity of command that became more acute as the Air Corps enlarged in preparation for World War II. This was resolved by the creation of the Army Air Forces on 20 June 1941, when both organizations became subordinate to the new higher echelon.
The Air Corps ceased to have an administrative structure after 9 March 1942, but as "the permanent statutory organization of the air arm, and the principal component of the Army Air Forces," the overwhelming majority of personnel assigned to the AAF were members of the Air Corps.
Creation of the Air Corps 
The Air Service had a brief but turbulent history. Created during World War I by executive order, it gained permanent legislative authority in 1920 as a combatant arm of the line of the United States Army. There followed a six-year struggle between adherents of airpower and the supporters of the traditional military services about the value of an independent Air Force, intensified by struggles for funds caused by skimpy budgets, as much an impetus for independence as any other factor.
The Lassiter Board, a group of General Staff officers, recommended in 1923 that the Air Service be augmented by an offensive force of bombardment and pursuit units under the command of Army general headquarters in time of war, and many of its recommendations became Army regulations. The War Department desired to implement the Lassiter Board's recommendations, but the administration of President Calvin Coolidge chose instead to economize by radically cutting military budgets, particularly the Army's.[n 1] The Lampert Committee of the House of Representatives in December 1925 proposed a unified air force independent of the Army and Navy, plus a department of defense to coordinate the three armed services. However another board, headed by Dwight Morrow, was appointed in September 1925 by Coolidge ostensibly to study the "best means of developing and applying aircraft in national defense" but in actuality to minimize the political impact of the pending court-martial of Billy Mitchell (and to preempt the findings of the Lampert Committee). It declared that no threat of air attack was likely to exist to the United States, rejected the idea of a department of defense and a separate department of air, and recommended only minor reforms that included renaming the Air Service to allow it "more prestige."
In early 1926 the Military Affairs Committee of the Congress rejected all bills set forth before it on both sides of the issue. They fashioned a compromise in which the findings of the Morrow Board were enacted as law, while providing the air arm a "five-year plan" for expansion and development. Maj. Gen. Mason Patrick, the Chief of Air Service, had proposed that it be made a semi-independent service within the War Department along the lines of the Marine Corps within the Navy Department, but this was rejected; only the cosmetic name change was accepted.[n 2] The legislation changed the name of the Air Service to the Air Corps, "thereby strengthening the conception of military aviation as an offensive, striking arm rather than an auxiliary service."
The Air Corps Act (44 Stat. 780) became law on 2 July 1926. In accordance with the Morrow Board's recommendations, the act created an additional Assistant Secretary of War to "help foster military aeronautics", and established an air section in each division of the General Staff for a period of three years. Two additional brigadier generals would serve as assistant chiefs of the Air Corps. Previous provisions of the National Defense Act of 1920 that all flying units be commanded only by rated personnel and that flight pay be awarded were continued. The Air Corps also retained the "Prop and Wings" as its branch insignia through its disestablishment in 1947. Patrick became Chief of the Air Corps and Brig. Gen. James E. Fechet continued as his first assistant chief. On 17 July 1926, two lieutenant colonels were promoted to brigadier general for four-year terms as assistant chiefs of Air Corps: Frank P. Lahm, to command the new Air Corps Training Center, and William E. Gillmore, in command of the Materiel Division.[n 3]
Of the new law and organization, Wesley F. Craven and James L. Cate wrote in the official history of the United States Army Air Forces:
The bill which was finally enacted purported to be a compromise, but it leaned heavily on the Morrow recommendations. The Air Corps Act of 2 July 1926 effected no fundamental innovation. The change in designation meant no change in status: the Air Corps was still a combatant branch of the Army with less prestige than the Infantry.
The position of the air arm within the Department of War remained essentially the same as before, that is, the flying units were under the operational control of the various ground forces corps area commands and not the Air Corps, which remained responsible only for procurement and maintenance of aircraft, supply, and training. Because of a lack of legally specified duties and responsibilities, the new position of Assistant Secretary of War for Air, held by F. Trubee Davison from July 1926 to March 1933, proved of little help in promoting autonomy for the air arm.
Five-year expansion program 
The Air Corps Act gave authorization to carry out a five-year expansion program. However, the lack of funding caused the beginning of the five-year expansion program to be delayed until 1 July 1927. Patrick proposed an increase to 63 tactical squadrons (from an existing 32) to maintain the program of the Lassiter Board already in effect, but Chief of Staff Gen. John Hines rejected the recommendation in favor of a plan drawn up by ground force Brig. Gen. Hugh Drum that proposed 52 squadrons.[n 4] The act authorized expansion to 1,800 airplanes, 1,650 officers, and 15,000 enlisted men, to be reached in regular increments over a five-year period. None of the goals were reached by the end of five years, and neither of the modest increases in airplanes or officers was reached until 1938, because adequate funds were never appropriated in the budget, and the coming of the Great Depression forced reductions in pay and modernization across the board in the Army. Organizationally the Air Corps doubled from seven to fifteen groups, but all were seriously understrength in aircraft and pilots. (Origin of first seven groups shown here)
|Group||Station||Date activated||Aircraft type|
|18th Pursuit Group||Wheeler Field, Hawaii||20 January 1927||PW-9|
|7th Bombardment Group||Rockwell Field, California||1 June 1928||LB-7, B-3A|
|12th Observation Group¹||Brooks Field, Texas||1 October 1930||O-19|
|20th Pursuit Group||Mather Field, California||15 November 1930||P-12|
|8th Pursuit Group||Langley Field, Virginia||1 April 1931||P-6|
|17th Pursuit Group²||March Field, California||1 July 1931||P-12|
|19th Bomb Group||Rockwell Field, California||24 June 1932||B-10|
|16th Pursuit Group||Albrook Field, Canal Zone||1 December 1932||P-12|
|10th Transport Group||Patterson Field, Ohio||20 May 1937||C-27 C-33|
As units of the Air Corps increased in number, so did higher command echelons. The 2nd Wing, activated in 1922 as part of the Air Service, remained the only wing organization in the new Air Corps until 1929, when it was redesignated the 2nd Bombardment Wing in anticipation of the activation of the 1st Bombardment Wing to provide a bombardment wing on each coast. The 1st Bomb Wing was activated in 1931, followed by the 3rd Attack Wing in 1932 to protect the Mexican border, at which time the 1st became the 1st Pursuit Wing. The three wings became the foundation of General Headquarters Air Force upon its activation in 1935.
Aircraft and personnel 1926–1935 
In 1927 the Air Corps adopted a new color scheme for painting its aircraft, heretofore painted olive drab. The wings and tails of aircraft were painted chrome yellow, with the words "U.S. ARMY" displayed in large black lettering on the undersurface of the lower wings. Tail rudders were painted with a vertical dark blue band at the rudder hinge and 13 alternating red-and-white horizontal stripes trailing. In the early 1930s the painting of fuselages olive drab was changed to blue, and this motif continued until late 1937, when all new aircraft (now all-metal) were left unpainted except for national markings.
Most pursuit fighters before 1935 were of the Curtiss P-1 Hawk (1926–1930) and Boeing P-12 (1929–1935) families, and before the 1934 introduction of the all-metal monoplane, most front-line bombers were canvas-and-wood variants of the radial engined Keystone LB-6 (60 LB-5A, LB-6 and LB-7 bombers) and B-3A (127 B-3A, B-4A, B-5, and B-6A bombers) designs.[n 5] Between 1927 and 1934, the Curtiss O-1 was the most numerous of the 19 different types and series of observation craft and its A-3 variant the most numerous of the attack planes that fulfilled the observation/close support role designated by the General Staff as the primary mission of the Air Corps.
Transport aircraft of the first ten years of the Air Corps were of largely trimotor design, such as the Atlantic-Fokker C-2 and the Ford C-3, and were procured in such small numbers (66 total) that they were doled out one airplane to a base. As their numbers and utility declined, they were replaced by a series of 50 twin-engine and single-engine small transports, and used for staff duties. Pilot training was conducted between 1927 and 1937 in the Consolidated PT-3 trainer, followed by the Stearman PT-13 and variants after 1937.
By 1933 the Air Corps expanded to a tactical strength of 50 squadrons: 21 pursuit, 13 observation, 12 bombardment, and 4 attack. All were understrength in aircraft and men, particularly officers, which resulted in most being commanded by junior officers (commonly first lieutenants)[n 6] instead of by majors as authorized. The last open-cockpit fighter used by the USAAC, the P-26, came into service in 1933 and bridged the gap between the biplane and more modern fighters.
The Air Corps was called upon in early 1934 to deliver mail in the wake of the Air Mail scandal, involving the postmaster general and heads of the airlines. Despite an embarrassing performance that resulted in a number of crashes and 12 fatalities, the investigating boards that followed recommended organizational and modernization changes that again set the Air Corps on the path to autonomy and eventual separation from the Army. A force of 2,320 aircraft was recommended by one board,[n 7] and authorized by Congress in June 1936, but appropriations to build up the force were denied by the administration until 1939, when the probability of war became apparent. Instead, the Air Corps inventory actually declined to 855 total aircraft in 1936, a year after the creation of GHQ Air Force, which by itself was recommended to have a strength of 980.
The most serious fallout from the Air Mail fiasco was the retirement under fire of Major General Benjamin Foulois as Chief of Air Corps. Soon after the Roosevelt administration placed the blame on him for the Air Corps' failures, he was investigated by a congressional subcommittee alleging corruption in aircraft procurement. The matter resulted in an impasse between committee chairman William N. Rogers and Secretary of War George Dern before being sent to the Army's Inspector General, who ruled largely in favor of Foulois. Rogers continued to severely criticize Foulois through the summer of 1935, threatening future Air Corps appropriations, and despite public support by Dern for the embattled chief, the administration was close to firing Foulois for his perceived attitude as a radical airman and his public criticisms of the administration during the controversy. He retired in December 1935 for the good of the service.
The Roosevelt administration began a search for his replacement in September 1935, narrowing the choice to two of the three assistant chiefs, Oscar Westover and Henry Conger Pratt. Pratt appeared to have the superior credentials, but he had been in charge of aircraft procurement during the Foulois years and was looked upon warily by Dern as possibly being another Mitchell or Foulois. Westover was chosen because he was the philosophical opposite of the two insurgent airmen in all respects, being a "team player".
The open insurgency between 1920 and 1935 of airmen foreseeing a need for an independent air force to develop fully the potential of airpower had cost the careers of two of its near-legendary lights, Foulois and Mitchell, and nearly cost the reputation of two others, Pratt and Henry H. Arnold. In terms of the principle of civilian control of the military in peacetime, their tactics and behavior were clearly inappropriate. The political struggle had temporarily alienated supporters in Congress, had been counterproductive of the development of the Air Corps in the short run, and had hardened the opposition of an already antagonistic General Staff. But through their mistakes and repeated rebuffs, the airmen had learned what they were lacking to prove the argument that the Air Corps could perform a unique mission, strategic bombardment, and the real threat of another world war would soon reverse their fortunes.
Doctrinal development and battles 
Strategic bombardment in roles and missions 
|"The Naval Air Force will be based on the fleet and move with it as an important element in solving the primary missions confronting the fleet. The Army Air Forces will be land-based and employed as an essential element to the Army in the performance of its mission to defend the coasts at home and in our overseas possessions, thus assuring the fleet absolute freedom of action without any responsibility for coast defense."|
|Gen. Douglas MacArthur, Adm. William V. Pratt, 7 January 1931|
In March 1928, commenting on the lack of survivability in combat of his unit's Keystone LB-7 and Martin NBS-1 bombers, Lt. Col. Hugh J. Knerr, commander of the 2nd Bombardment Group at Langley Field, Virginia, recommended that the Air Corps adopt two types of all-metal monoplane bombers, a short-range day bomber and a long-range night bomber. Instructors at the Air Corps Tactical School (ACTS), also then at Langley, took the concept one step further in March 1930 by recommending that the types instead be light and heavy, the latter capable of long range carrying a heavy bomb load.
The Air Corps in January 1931 "got its foot in the door" for developing a mission for which only it would have capability, while at the same time creating a need for technological advancement of its equipment. Chief of Naval Operations Admiral William V. Pratt was desirous of having general assent to his proposition that all naval aviation including land-based aircraft was by definition tied to carrier-based fleet operations. Pratt reached an agreement with new Army Chief of Staff Douglas MacArthur that the Air Corps would assume responsibility for coastal defense (traditionally a primary function of the Army but only a secondary, war-time function of the Navy) beyond the range of the Army's Coast Artillery guns, ending the Navy's apparent duplication of effort in coastal air operations. The agreement never had authority other than personal agreement between the two heads of service. Though the Navy repudiated the statement when Pratt retired in 1934, the Air Corps clung to the mission, and provided itself with the basis for development of long range bombers and creating new doctrine to employ them.
The formulation of theories of strategic bombing gave new impetus to the argument for an independent air force. Strategic or long-range bombardment was intended to destroy an enemy nation's industry and war-making potential, and only an independent service would have a free hand to do so. But despite what it perceived as "obstruction" from the War Department, much of which was attributable to a shortage of funds, the Air Corps made great strides during the 1930s. A doctrine emerged that stressed precision bombing of industrial targets by heavily armed long-range aircraft.
This doctrine resulted because of several factors. The Air Corps Tactical School moved in July 1931 to Maxwell Field, Alabama, where it taught a 36-week course for junior and mid-career officers that included military aviation theory. The Bombardment Section, under the direction of its chief, Major Harold L. George, became influential in the development of doctrine and its dissemination throughout the Air Corps. Nine of its instructors became known throughout the Air Corps as the "Bomber Mafia", eight of whom (including George) went on to be generals during World War II. Conversely, pursuit tacticians, primarily Capt. Claire Chennault, Chief of the school's Pursuit Section, found their influence waning because of repeated performance failures of pursuit aviation. Finally, the doctrine represented the Air Corps' attempt to develop autonomy from the General Staff, which enforced subordination of the air arm by limiting it to support of ground forces and defense of United States territory.
Technological advances in bombers 
New bomber types under development clearly outperformed new pursuit types, particularly in speed and altitude. In both 1932 and 1933, large-scale maneuvers found fighters unable to climb to altitude quickly enough to intercept attacking Y1B-9 and B-10 prototypes, a failure so complete that Westover, following the 1933 maneuvers, actually proposed elimination of pursuits altogether.
The successful development of the Martin B-10 and subsequent orders after 1935 for more than 150 (including its B-12 variant) continued the hegemony of the bomber within the AAC. The B-10 featured innovations that became standard for the next decade: an all-metal monoplane, closed cockpits, rotating gun turrets, retractable landing gear, internal bomb bay, and full engine cowlings.
The superiority of bombers resulted in a 1934 feasibility study for a 35-ton 4-engined bomber (the Boeing XB-15) that, while found to be unsuitable for combat because of inadequate engine size, led to the design of the Model 299, later to become the B-17 Flying Fortress, whose first flight was in July 1935. In June 1936 the Air Corps requested 11 B-15s and 50 B-17s for reinforcing hemispheric defense forces in Hawaii, Alaska, and Panama. The request was rejected on the basis that there were no strategic requirements for aircraft of such capabilities.
General Staff resistance to Air Corps doctrine 
The Army and Navy, both cognizant of the continuing movement within the Air Corps for independence, cooperated to resist it. On 11 September 1935, the Joint Board, at the behest of the Navy and the concurrence of MacArthur, issued a "Joint Action Statement" that reasserted the limited role of the Air Corps as merely an auxiliary to the "mobile Army" in all its missions, including coastal defense. The edict was issued with the intent of shoving an upstart Air Corps back into its place. However, the bomber advocates interpreted its language to mean that the Air Corps could conduct long range reconnaissance, attack approaching fleets, reinforce distant bases, and attack enemy air bases, all in furtherance of its mission to prevent an air attack on America. The lack of inter-service cooperation on coastal defense fostered by the Joint Action Statement continued until the Japanese attack on Pearl Harbor.[n 8]
A month later (15 October 1935), the General Staff sought to mitigate criticism of the statement by releasing a revision of Training Regulation TR 440-15 Employment of the Air Forces of the Army,[n 9] which served as the doctrinal guide for the Air Corps prior to the replacement of training regulations by Army field manuals beginning in 1939. In 1934 MacArthur ordered a revision of TR 440-15 with the purpose of restating "the Air Corps's place in the scheme of national defense and...(to do away with)...misconceptions and interbranch prejudices." While calling the revision a "compromise" with airpower advocates, the General Staff parroted the conclusions of the Baker and Drum Boards,[n 10] and reasserted its long-held position (and that of the Secretary Dern)[n 11] that auxiliary support of the ground forces was the primary mission of the Air Corps. TR 440-15 did acknowledge some doctrinal principles asserted by the ACTS (including the necessity of destroying an enemy's air forces and concentrating air forces against primary objectives) and recognized that future wars would probably entail some missions "beyond the sphere of influence of the Ground Forces" (strategic bombardment), but it also completely ignored prioritization of such targets, weakening its effectiveness as doctrine. The Air Corps in general assented to the changes, as it did to other compromises of the period, as acceptable for the moment. TR 440-15 remained the doctrinal position of the Air Corps until it was superseded by the first Air Corps Field Manual, FM 1–5 Employment of Aviation of the Army, on 15 April 1940.[n 12]
In the fall of 1937 the Army War College's course on the use of airpower reiterated the General Staff position and taught that airpower was of limited value when employed independently. Using attaché reports from both Spain and Ethiopia, and endorsed by a senior Air Corps instructor, Col. Byron Q. Jones,[n 13] the course declared that the Flying Fortress concept had "died in Spain", and that airpower was useful mainly as "long range artillery." Air Corps officers in the G-3 Department of the General Staff pointed out that Jones' conclusions were inconsistent with the revised TR 440-15, but their views were dismissed by the Deputy Chief of Staff with the comment: "No doctrine is sacrosanct, and of all military doctrines, that of the Air Corps should be the last to be so regarded."[n 14]
At the same time the General Staff had ordered studies from all the service branches to develop drafts for the coming field manuals. The Air Corps Board, a function of the ACTS, submitted a draft in September 1938 that included descriptions of independent air operations, strategic air attacks, and air action against naval forces, all of which the General Staff rejected in March 1939. Instead it ordered that the opening chapter of the Air Corps manual be a doctrinal statement developed by the G-3 that "left little doubt" that the General Staff's intention was "to develop and employ aviation in support of ground forces." The Air Corps Board, on the orders of Arnold, developed a secret study for "defense of the Monroe Doctrine" that recommended development of long-range, high altitude, high-speed aircraft for bombardment and reconnaissance to accomplish that defense.
The War Department, seeking to stifle procurement of the B-17 and in belated recognition that coordinated air-ground support had been long neglected, decided that it would develop and order only twin-engined "light" bombers in fiscal years 1939 and 1940, and refused funding for further experimental development of a very long range (VLR) bomber. In collaboration with the Navy, it placed a moratorium on the long range bomber program in June 1938 by issuing a Joint Board ruling that it could foresee no use for a long range bomber in future conflict. However the moratorium would last only a year, as it went against not only the trends of technological development, but against the geopolitical realities of coming war.
Between 1930 and 1938 the Air Corps had obtained a mission in coastal defense that justified both the creation of a centralized strike force and the development of four-engined bombers, and was lobbying for another mission, strategic bombardment, with which it could persuasively argue for independence from the Army.
GHQ Air Force 
A major step toward creation of a separate air force occurred on 1 March 1935 with the activation of a centralized, air force-level command headed by an aviator answering directly to the Army Chief of Staff. Called the General Headquarters Air Force, the organization had existed in Army planning since 1924 as a subordinate element of Army General Headquarters, which would be activated to control all Army units in case of war mobilization. In anticipation of military intervention Cuba in 1933,[n 15] the headquarters had been created on 1 October but not staffed.[n 16] The Drum Board of 1933 had first endorsed the concept, but as a means of reintegrating the Air Corps into control by the General Staff, in effect reining it in.
Among the recommendations of the Baker Board, established in the wake of the Air Mail scandal, was that the proposals of the Drum Board be adopted: an increase in strength to 2,320 aircraft and establishment of GHQ Air Force as a permanent peacetime tactical organization, both to ameliorate the pressures for a separate air force and to exploit emerging capabilities in airpower. In the absence of a general headquarters (i.e. peacetime), GHQ Air Force would report to the General Staff. The War Plans Division of the Army reacted to the recommendations of the Baker Board by insisting that men and modern equipment for seven army divisions be procured before any increase in the Air Corps was begun, and opposed any immediate attempt to bring the Air Corps up to the 1,800 plane-strength first authorized in 1926, for fear of antagonizing the Navy.[n 17] President Roosevelt approved an open-ended program to increase strength to 2,320 aircraft (albeit without any proviso for funding) in August 1934, and Secretary Dern approved the activation of GHQ Air Force in December 1934.
GHQ Air Force took control of all combat air units in the United States from the jurisdiction of corps area commanders, where it had resided since 1920, and organized them operationally into a strike force of three wings.[n 18] The GHQ Air Force remained small in comparison to European air forces. On its first day of existence, the command consisted of 60 bombers, 42 attack aircraft, 146 pursuits, and 24 transports, only 40% of strength in the tables of organization. Administratively it organized the forces into four geographical districts (that later became the first four numbered air forces) that paralleled the four field army headquarters created in 1933.
The General Staff perceived its creation as a means of lessening Air Corps autonomy, not increasing it, however, and GHQ Air Force was a "coordinate component" equal to the Air Corps, not subject to its control. The organizations reported separately to the Chief of Staff, the Air Corps as the service element of the air arm, and GHQAF as the tactical element. However all GHQ Air Force's members, along with members of units stationed overseas and under the control of local ground commanders, remained part of the Air Corps. This dual status and division of authority hampered the development of Air Corps for the next six years, as it had the Air Service during World War I, and was not overcome until the necessity of expanding the force occurred with the onset of World War II. The commanding general of GHQ Air Force, Maj. Gen. Frank M. Andrews, clashed philosophically with Westover over the direction in which the air arm was heading, adding to the difficulties, with Andrews in favor of autonomy and Westover not only espousing subordination to the Army chain of command, but aggressively enforcing his prohibitions against any commentary opposed to current policy. Andrews, by virtue of being out from Westover's control, had picked up the mantle of the radical airmen, and Westover soon found himself on "the wrong side of history" as far as the future of the Air Corps was concerned.[n 19]
Lines of authority were also difficult as GHQ Air Force controlled only combat flying units within the continental United States. The Air Corps was responsible for training, aircraft development, doctrine, and supply, while the ground forces corps area commanders still controlled installations and the personnel manning them. An example of the difficulties this arrangement imposed on commanders was that while the commander of GHQ Air Force was responsible for the discipline of his command, he had no court martial authority over his personnel, which was retained by the corps area commander. Base commanders of Air Corps installations reported to as many as four different higher echelons.[n 20]
In January 1936, the AAC contracted with Boeing for thirteen Y1B-17 Flying Fortress prototypes, enough to equip one squadron for operational testing and a thirteenth aircraft for stress testing, with deliveries made from January to August 1937. The cost of the aircraft disturbed War Department Secretary Harry Woodring, who denied requests for further purchases, so that although the air arm embraced strategic bombing as its primary doctrine after the creation of GHQ Air Force, by 1938 there were still only thirteen on hand. On 18 March 1938 Secretary Woodring approved a plan that included the purchase of 144 additional heavy bombers, but approval was reversed in July following the moratorium against the long-range bomber program issued by the Joint Board.[n 21] The purchase of 67 B-17s (five squadrons) in FY 1940 as part of the Woodring program, using carryover funds, was cancelled by Army Chief of Staff Gen. Malin Craig.
The moratorium also resulted from the enmity of the Navy incurred by the Air Corps on 12 May 1938 when it widely publicized the interception of the Italian ocean liner Rex by three B-17s while it was 620 miles off-shore of New York City.[n 22] Possibly under pressure from the Navy, Craig placed a 100-mile limit on all future off-shore flights by the Army, and the services together issued a joint statement reasserting that the mission of the Air Corps in coastal defense was only for supporting the Navy if called upon to do so. Westover, who stridently opposed cancellation of the Woodring program, was killed in an air crash on 21 September 1938 and was succeeded by Arnold.
Even with the doctrine of strategic bombardment as its priority, the Air Corps belatedly sought to modernize its tactical combat force under GHQ Air Force, bringing into service the Northrop A-17 and Douglas B-18 Bolo in 1936, the Seversky P-35 in 1937, and the Curtiss P-36 in 1938. However all of these aircraft were obsolete by the time they came into service, and development of more modern airplanes continued. By October 1940, over a year before the United States was drawn into the war, every type of piston-driven single-engine fighter eventually used by the USAAF during World War II was in flight test except the P-47. However, the press of the enormous tasks confronting the Air Corps and the primacy of strategic bombing doctrine meant that development of a long-range capability for these new single-engined fighters was not undertaken until combat losses to bombers forced the issue.
Problems with unity of command 
Arnold, at the direction of President Roosevelt in January 1939, oversaw an expansion of the Air Corps that saw it double in size from 15 to 30 groups by the end of 1940. The separation of the combat organization (GHQ Air Force) from the logistic organization (Air Corps) created serious problems of coordination nearly identical to the Division of Military Aeronautics/Bureau of Aircraft Production dual-authority mess of World War I. In March 1939, with the replacement of Andrews as commander of GHQ Air Force by Maj. Gen. Delos C. Emmons, Arnold was also nominally assigned to "supervise" the tactical force, but divisions were not entirely resolved. On 5 October 1940, Arnold drew up a proposal for creating an air staff, unifying the air arm under one commander, and giving it autonomy with the ground and supply forces—a plan which was eventually adopted in March 1942—and submitted it to Chief of Staff George C. Marshall, but it was immediately opposed by the General Staff in all respects.
Instead, the two organizations were separated again by a directive from Marshall on 19 November 1940. Army GHQ was activated (over five years after the activation of GHQ Air Force) and GHQ AF placed under it. Its logistical and training structure remained under direct control of the chief of staff and its airfields under corps commanders. However Arnold had joined the General Staff as acting "Deputy Chief of Staff for Air" on 11 November 1940, a position that enabled him to coordinate the two sections of the air arm until the organizational problems were repaired. Even so, Maj. Gen. George H. Brett, acting Chief of Air Corps in Arnold's absence, denounced the plan as "disastrous in war".
The problems of lack of unity of command were further exacerbated by the assignment of GHQ Air Force to Army GHQ. Emmons, who had begun his tour junior to Arnold, was promoted to lieutenant general to make him equal to the commanders of the field armies also controlled by Army GHQ. This forced him to report to and act under an inferior in rank (both Arnold and Brett were major generals). On 20 June 1941, in an attempt to end the divisions, the War Department revised Army Regulation 95-5 to create the Army Air Forces with the Air Corps and GHQAF (the latter redesignated as Combat Command) as its major components, authorized an Air Staff to manage planning and execution of expansion of the air arm, and named Arnold as Chief of the Army Air Forces. It did not, however, end the dual chain of command, as air units of Combat Command still reported to Army GHQ as well as Headquarters AAF.
During World War II the role of the Air Corps changed again. On 9 March 1942, War Department Circular 59 abolished Army GHQ and organized the Army into three autonomous components: the Army Air Forces, the Army Ground Forces, and the Services of Supply, each with a commanding general reporting to the Chief of Staff. The Office of Chief of Air Corps (OCAC) was abolished as well (as was Air Force Combat Command) and the functions of the Air Corps transferred to the AAF, reducing it to a combat arm (Infantry and the other combat arms also had their chiefs abolished and functions transferred to the Army Ground Forces). The Congress did not disestablish the Army Air Corps until 26 July 1947, with the passage of the National Security Act of 1947 (61 Stat. 502).
Most members of the Army Air Forces, however, also remained members of the Air Corps. In May 1945, 88 percent of officers serving in the Army Air Forces were commissioned in the Air Corps, while 82 percent of enlisted members assigned to AAF units and bases had the Air Corps as their combat arm branch.
Modernization and expansion of the force 
New aircraft 
The Air Corps tested and employed a profusion of pursuit, observation, and bomber aircraft during its 15-year history. The advent of the all-metal monoplane, enclosed cockpits, retractable landing gear, enclosed bomb bays, and the emergence of strategic bombardment doctrine led to many designs in the mid and late 1930s that were still in use when the United States entered World War II. Among the key technology items developed were oxygen and cabin pressurization systems, engine superchargers (systems essential for high-altitude combat), advanced radio communication systems, such as VHF radios, and the Norden bombsight.
As a further consequence of the Air Mail scandal, the Baker Board reviewed the performance of Air Corps aircraft and recognized that civilian aircraft were far superior to planes developed solely to Air Corps specifications. Following up on its recommendation, the Air Corps purchased and tested a Douglas DC-2 as the XC-32, which subsequently became the flying headquarters of Gen. Andrews. The XC-32 so exceeded Air Corps specifications that 17 were purchased to equip the first operational transport unit, the 10th Transport Group, activated in June 1937 at Patterson Field in Ohio. In 1939 the Air Corps recognized the importance of modern air transports and purchased 35 DC-2/DC-3 hybrids, designated the C-39, the forerunner of the more than 10,000 C-47 Skytrains that served in World War II.
Notable fighters developed during the late 1930s and early 1940s were the P-39 Airacobra (first flown April 1938), P-40 Tomahawk (October 1938), P-38 Lightning (January 1939), P-51 Mustang (October 1940), and P-47 Thunderbolt (May 1941). Technological development of fighters occurred so rapidly that by December 1941 both the P-39 and P-40 were approaching obsolescence, even though both had been in production less than 18 months. Bombers developed during this period were the A-20 Havoc (first flown October 1938), B-25 Mitchell (January 1939), B-24 Liberator (December 1939), and B-26 Marauder (November 1940). Except for the B-24, P-47, and P-51, all of these had production deliveries that began before June 1941. Three other long-range bombers began development during this period, though only mock-ups were produced before World War II: B-29 Superfortress (study begun in 1938), B-32 Dominator (June 1940), and B-36 Peacemaker (April 1941).
Expansion of the Air Corps 
In a special message to Congress on 12 January 1939,[n 23] President Roosevelt advised that the threat of a new war made the recommendations of the Baker Board inadequate for American defense and requested approval of a "minimum 3,000-plane increase" for the Air Corps.[n 24] On 3 April 1939, Congress allocated the $300 million requested by Roosevelt for expansion of the Air Corps, half of which was dedicated to purchasing planes to raise the inventory from 2,500 to 5,500 airplanes, and the other half for new personnel, training facilities, and bases. In June the Kilner Board[n 25] recommended several types of bombers needed to fulfill the Air Corps mission that included aircraft having tactical radii of both 3,000 miles (modified in 1940 to 4,000) and 2,000 miles. Chief of Staff Craig, long an impediment to Air Corps ambitions but nearing retirement, came around to the Air Corps viewpoint after Roosevelt's views became public. Likewise, the War Department General Staff reversed itself and concurred in the requirements, ending the brief moratorium on bomber development and paving the way for work on the B-29.
Over the winter of 1938–1939, Arnold transferred a group of experienced officers to his headquarters as an unofficial air staff to lay out a plan that would increase the Air Corps to 50,000 men by June 1941. The expansion program of the Air Corps was characterized by repeated upward revision of goals for increasing aircraft production, total combat units, the training of new personnel, and construction of new bases. New combat groups were created by detaching cadres from the existing 15 Regular groups to provide the core of the new units, with the older groups providing the basis for an average of three new groups. Graduates of an expanded flight training program filled out the new groups and replaced the experienced personnel transferred from the older groups, resulting in a steady decline in the overall level of experience in the operational units.
The initial 25-Group Program for air defense of the hemisphere, developed in April 1939, called for 50,000 men (12,000 pilots). Its ten new combat groups were activated on 1 February 1940.[n 26] Following the successful German invasion of France and the Low Countries in May 1940, a 54-Group Program was approved on 12 July,[n 27] although funding approval could not keep pace and only 25 additional groups were activated on 15 January 1941.[n 28] An 84-Group Program, with an eventual goal of 400,000 men by 30 June 1942, was approved on 14 March 1941, although not publicly announced until 23 October 1941.[n 29] In addition to funding problems, these programs were hampered by delays in acquiring the new infrastructure necessary to support them, sites for which had to be identified, negotiated and approved before construction. The General Staff again was unwilling to assign any of this work to the Air Corps, and instead detailed it to the overtaxed Quartermaster Corps. When the QMC failed to put new air bases in place in either an efficient or timely manner, the Corps of Engineers was then assigned the task, although it continued to implement the policies already in place.[n 30]
When war broke out in September 1939 the plan was only halfway to its goal in manpower, and with only 800 first-line combat aircraft, 700 of which became obsolete by December 1941.[n 31] Two-thirds of its officers were second lieutenants whose only flying experience was their flight training. The Air Corps had 17 major installations and four depots, and most of its 76 airfields were co-located at civil airports or were small fields on Army posts.[n 32]The acceleration of the expansion programs resulted in an Air Corps of 156 airfields and nearly 100,000 men by the end of 1940. Twenty civilian flight schools and eight technical training schools were contracted to provide additional training facilities, and on 10 August 1940, Pan American Airways was contracted to provide meteorological and navigation training at Coral Gables, Florida, until military schools could be established.
Procurement of aircraft remained a significant problem for the Air Corps until the eve of war, because of diversion of production to the Allies. On 16 May 1940, with the fall of France imminent, President Roosevelt delivered an address to Congress calling for a supplemental appropriation of nearly a billion dollars and the manufacture of 50,000 aircraft a year for the armed forces (36,500 of them for the Air Corps). 18 months later the AAF still had only 3,304 combat aircraft (only 1,024 overseas), and 7,024 non-combat aircraft, of which 6,594 were trainers. Its command staff increased in October 1940 to 24 with the addition of 15 new general officer billets.[n 33] By the date the Air Corps became part of the AAF, it had 33 general officers, including four serving in observer roles to the Royal Air Force.
At this stage, public opinion support of airpower reached unprecedented highs, but Arnold made a decision to postpone any attempts to exploit the opportunity to push for an independent Air Force. Assured of a free hand by Marshall, Arnold thought that it would "be a serious mistake to change the existing setup" in the midst of the crucial expansion effort.
Organization of the Air Corps 
Army Air Corps, 1 March 1935 
- SOURCES: Maurer Maurer, Aviation in the U.S. Army, 1919–1939 (Appendix 5), and Air Force Combat Units of World War II, both USAF Historical Research Center
Except for the addition of reconnaissance (formerly observation) squadrons to the three bombardment groups in September 1936, and the May 1937 exchange of the 12th Observation Group (disbanded) for the 10th Transport Group (activated), the organization of the Air Corps shown here remained essentially unchanged until activation of the first expansion groups on 1 February 1940.
General Headquarters Air Force 
- 21st Airship Group, Scott Field, Illinois
- 9th Airship Squadron, Scott Field
- 19th Airship Squadron, Langley Field
- 7th Bombardment Group, Hamilton Field, California
- 17th Attack Group, March Field, California
- 19th Bombardment Group, March Field, California
- 37th Attack Squadron (attached to 8th Pursuit Group)
- 1st Pursuit Group, Selfridge Field, Michigan
- 2nd Bombardment Group, Langley Field, Virginia
- 8th Pursuit Group, Langley Field, Virginia
- 9th Bombardment Group, Mitchel Field, New York
- 3rd Attack Group, Barksdale Field, Louisiana
- 20th Pursuit Group, Barksdale Field, Louisiana
Other flying units 
- Eighth Corps Area, United States Army, Fort Sam Houston, Texas
- 12th Observation Group, Brooks Field, Texas
- Air Corps Advanced Flying School, Kelly Field, Texas
- Air Corps Primary Flying School, Randolph Field, Texas
- 46th, 47th, 52nd, and 53rd School Squadrons
- Air Corps Tactical School, Maxwell Field, Alabama
Overseas units 
- 5th Composite Group, Luke Field, Hawaii
- 18th Pursuit Group, Wheeler Field, Hawaii
- 6th Composite Group, Albrook Field, Canal Zone
- 16th Pursuit Group, Albrook Field, Canal Zone
Annual strength 
Chiefs of Air Corps 
- Maj. Gen. Mason M. Patrick, 2 July 1926 – 13 December 1927
- Maj. Gen. James E. Fechet, 14 December 1927 – 19 December 1931
- Maj. Gen. Benjamin D. Foulois, 20 December 1931 – 21 December 1935
- Maj. Gen. Oscar M. Westover, 22 December 1935 – 21 September 1938
- Maj. Gen. Henry H. Arnold, 29 September 1938 – 20 June 1941
- Maj. Gen. George H. Brett, 20 June 1941 – 9 March 1942
See also 
- Air Corps Tactical School
- List of military aircraft of the United States
- United States Army Air Service
- United States Army Air Forces
- Bird of Paradise (aircraft)
- Question Mark (aircraft)
- Interception of the Rex
- United States Army Aviation Branch
Lineage of the United States Air Force 
- Aeronautical Division, Signal Corps 1 August 1907 – 18 July 1914
- Aviation Section, Signal Corps 18 July 1914 – 20 May 1918
- Division of Military Aeronautics 20 May 1918 – 24 May 1918
- Air Service, U.S. Army 24 May 1918 – 2 July 1926
- U.S. Army Air Corps 2 July 1926 – 20 June 1941*
- U.S. Army Air Forces 20 June 1941 – 18 September 1947*
- United States Air Force 18 September 1947–present
* The Air Corps became a subordinate component of the Army Air Forces on 20 June 1941, and was abolished as an administrative organization on 9 March 1942. It continued to exist as one of the combat arms of the Army (along with infantry, armor, and artillery) until abolished by reorganization provisions of the National Security Act of 1947 (61 Stat. 495), 26 July 1947.
- The Coolidge administration boasted of cutting the War Department's budget by 75%.
- Gen. Patrick's proposal of an Air Corps equivalent to the Marine Corps was characterized by Brig. Gen. Fox Conner (and not for the first nor last time by General Staff opponents of Air Corps independence) as a "promotion scheme".
- Gillmore had been chief of the Supply Division of the Air Service. Both he and Lahm served only a single tour. Of the three assistant chiefs, Fechet succeeded Patrick in December 1927, Gillmore retired on 30 June 1930, and Lahm reverted back to his permanent rank on 16 July 1930.
- The General Staff viewed the "five-year plan" as an opponent of the Army in general and fought it bitterly, citing it as a destructive force at every opportunity. General Drum also chaired the 1933 Drum Board, created specifically to oppose (and revise) plans and appropriation requests submitted by Chief of Air Corps Foulois that were not to the General Staff's liking.
- The primary difference between the types is the twin-finned tail of the former, and the single vertical stabilizer of the latter design, which gave it marginally superior performance.
- An example is Ralph F. Stearley, who commanded the 13th Attack Squadron for four years as a 1st Lieutenant.
- The Drum Board, which derived the figure as the number necessary to maintain 2,072 "serviceable" planes for its worst-case scenario, War Plan Red-Orange. War plans involving Great Britain ("Red") as an opponent were not officially excluded from United States war planning until January 1938.
- As late as 14 October 1941, CNO Adm. Harold Stark insisted that the "proper" role of Army aviation in coastal defense was support of Navy operations.
- Since 1923 Army doctrine had been stated in Field Service Regulations, which were general in character, and Training Regulations, which stated combat principles for each combatant arm. TR 440-15 had been first issued on 26 January 1926 as Fundamental Principles for the Employment of the Air Service. Coincidentally, Col. William L. Mitchell resigned from the service the day following its issuance.
- The Drum Board was a panel of five generals formed in August 1933 by the General Staff to oppose recommendations by Air Corps planners for development and expansion to meet defense needs (Tate (1998) pp. 138–139), while the Baker Board was formed after the Air Mail scandal and had as its military members (who controlled the agenda) the five generals of the Drum Board (Tate pp. 143–145).
- Dern's characterization in February 1934 of the Air Corps' role as: "subordinated like all other elements, to whatever team it happens to accompany," leaves no doubt as to the Army's position about its purpose.
- In March 1939 the Secretary of War created an "Air Board" chaired by Arnold and instructed it to submit a recommendation for organization and doctrine of the Air Corps. Its report, submitted to Chief of Staff Marshall on 1 September 1939, represented an Army-wide perspective. It became the basis for FM 1–5, and recognized that the United States was then on the strategic defensive. Its view was conservative and "a considerable attenuation of air doctrine" as espoused by the ACTS. However it did correct the omissions of TR 440-15 and reasserted that centralized control by an airman in any combat role was essential for efficiency. Ironically, Gen. Andrews had by then become Army G-3 and reported to Marshall that the manual "did not endorse the radical theory of air employment". FM 1–5 was followed by supplemental doctrine manuals FM 1–15 Tactics and Technique of Air Fighting (pursuit) on 9 September 1940, FM 1–10 Tactics and Technique of Air Attack (bombardment) on 20 November 1940, FM 1–20 Tactics and Technique of Air Reconnaissance and Observation on 10 February 1941, FM 1–35 Aviation in Support of Ground Forces on 9 April 1942, and FM 1–75 Combat Orders on 16 June 1942. FM 1–5 was itself superseded after just three years by FM 100-20 Command and Employment of Air Power (Field Service Regulations) on 21 July 1943.
- Jones, an aviation pioneer and formerly a cavalry officer, was the rarest of Air Corps officers, a "true believer" in the General Staff doctrine. He was one of the few senior Air Corps officers never to have attended or instructed at the Air Corps Tactical School. Following his controversial endorsement, the War Department offered him a command with a temporary promotion to brigadier general. His autobiographical entry in the Cullum Register of USMA graduates, however, states he declined "because of desire of superiors to retain his services within (the) continental U.S." Jones remained at the Army War College with its temporary promotion to colonel until September 1939, then accepted a cavalry assignment and transferred from the Air Corps.
- Former War Plans Division chief Maj. Gen. Stanley Embick was the driving force in cutting back R&D, squelching long range bombers, and referring doctrinal disputes to the Joint Army-Navy Board for resolution. His influence ended the next year when he was replaced as Deputy Chief of Staff by George C. Marshall.
- A coup styled "the revolt of the sergeants" seized the Cuban military and replaced a provisional government sponsored by the Roosevelt Administration with a junta. Although Roosevelt was disposed to intervention only as a last resort, warnings that he intended to intervene under the Treaty of 1903 were made to the revolutionaries.
- Four ground force field army headquarters were established at the same time.
- Brig. Gen. Charles E. Kilbourne, at the core of the General Staff's disputes with the Air Corps and supervisor of the revision of TR 440-15, authored these suggestions. He also freely espoused his opinion that expansion of the Air Corps was primarily a "selfish" means of promotion for aviators at the expense of the rest of the Army, although on the 669-name promotion list for colonel in 1922, on which he had been 76th, the first airman (later Chief of Air Corps James Fechet) had been 354th. The 1,800 goal was never reached because of General Staff resistance to the "five-year plan", but the War Plans Division did deem it "acceptable" for implementation of War Plan Red-Orange. The Air Corps, based on studies of joint exercises held at Key West, Florida, found the number dangerously inadequate, concluding that 4,459 aircraft was the minimum needed to defend the United States against air attack in the event of War Plan Red-Orange.
- The wings were organized both functionally and geographically. The 1st was both the bombardment and the Pacific wing, the 2d the pursuit and Atlantic wing, and the 3rd the attack and Gulf Coast wing.
- Andrews and Westover were both 1906 graduates of West Point, with Andrews graduating one position higher in class standings. Andrews had originally been a cavalryman, and had married into the inner circles in Washington, while Westover, a former infantry officer with the unfortunate nickname of "Tubby," had pursued his career with bulldog-like determination. He had not learned to fly until he was 40 years of age and was a reluctant participant in Washington's social environs, usually depending on his assistant Hap Arnold to fulfill the protocol role. As early as 5 May 1919, in a memo to Director of Air Service Charles Menoher for whom he was assistant executive officer, Westover had demonstrated a loyalty to subordination, urging the relief of Billy Mitchell from his position as Third Assistant Executive (S-3) of the Air Service—along with his division heads—if their advocacy of positions not conforming to Army policy did not cease.
- The base commander of Selfridge Field was responsible for various aspects of administration to the CG of GHQAF, the Chief of the Air Corps, the commander of the Sixth Corps Area, and the Chief of the Air Materiel Division.
- The Woodring Plan (based on the "Balanced Air Corps Program" developed after a two-year War Department study) was another "five-year plan" that called for adding 1,094 aircraft: 144 four-engined bombers, 266 two-engined bombers, 259 attack aircraft, and 425 pursuits, to begin in FY 1940 (July 1939). It was supported by both Andrews and Westover.
- The distance is commonly stated in error as 725 miles. The Rex was actually that distance offshore on her last position report as the B-17s were taxiing for takeoff.
- Arnold called this speech the "Magna Carta of airpower".
- Roosevelt's plans were more far-reaching than the speech indicates. At a confidential and historic conference in the White House in late 1938, Roosevelt met with Secretary of the Treasury Henry Morgenthau; WPA Chief Harry L. Hopkins; Solicitor General Robert H. Jackson; Secretary of War Woodring; Secretary of the Navy Charles Edison; General Counsel of the Treasury Herman Oliphant; Chief of Naval Operations Adm. Harold R. Stark; Craig; Marshall; and Arnold. He outlined a vigorous and singular call for 10,000 aircraft, but was persuaded by advisers to cut back the number for political reasons. The date of this conference is in dispute. Arnold, from the notes he made on a manila envelope, stated in Global Mission (p. 177, with which Coffey agrees) that it took place on 28 September while Neville Chamberlain was preparing to return to Germany to complete the Munich Agreement. Other historians, including Gen. John W. Huston, editor of American Airpower Comes of Age: General Henry H. "Hap" Arnold's World War II Diaries, and Mark Skinner Watson, in the Army's official history Chief of Staff: Prewar Plans and Preparations (United States Army in World War II series), date the meeting as 14 November. Huston asserts that the Navy was pointedly excluded from the conference and argues that a number of White House "crisis" conferences were held in October and November, most without written record, and that Arnold confused them, inserting the date (in pencil on an otherwise ink record) in his notes after-the-fact (Huston, Vol. I, pp. 120–121, note 216). Watson indicates that only Roosevelt's "naval aides" represented the Navy (p. 137). Coffey argues that beginning with Roosevelt's weekly press conference of 14 October, the president issued public and private statements that indicated his Air Corps expansion plans were already well underway. William Goss, in his summary for Army Air Forces in World War II, uses 14 November, but concedes that expansion plans were well under way before November, and that Arnold was possibly correct. Because both dates are marked by notable events involving Nazi Germany (the U.S. broke diplomatic relations with Germany on 14 November), the actual date remains unresolved.
- The Kilner Board, appointed by Arnold, was chaired by Assistant Chief of the Air Corps Brig. Gen. Walter G. "Mike" Kilner, a veteran pursuit pilot and proponent of an independent Air Force.
- The new units were the 11th, 22d, 25th, and 29th Bombardment Groups, and the 27th, 28th, 31st, 35th, 36th, and 37th Pursuit Groups.
- Under a program called the First Aviation Objective, the plan called for 4006 combat aircraft, including 498 long range bombers in 14 groups, as well as a substantial increase in pursuit planes and units.
- 13th, 34th, 38th, 39th, 41st, 42nd, 43rd, 44th, 45th, 46th, 47th, and 58th Bomb Groups; 14th, 15th, 33rd, 49th, 50th, 51st, 52nd, 53rd, 54th, 55th, 56th, 57th, and 58th Pursuit Groups.
- The original goals of the Second Aviation Objective were 84 combat groups; 7,799 tactical aircraft; and the annual addition of 30,000 pilots and 100,000 technical personnel.
- The acquisition boards put together by the General Staff were hampered by their total unfamiliarity with Air Corps needs, a lack of instructions from a General Staff also unfamiliar with AC requirements, and the slowness of the boards themselves in submitting their reports. The Air Corps estimated that the 54-group program was set back two months by the failures. (Craven and Cate Vol. 6, pp. 134-136)
- By comparison, the RAF had 1,750 first-line aircraft and the German Luftwaffe 3,750. Moreover, the Luftwaffe had more personnel on the staffs of its headquarters and air ministry than were in the entire Air Corps (26,000). The first-line aircraft that would soon be considered obsolete were the B-18, A-17, and P-36. The only first-line aircraft in 1939 that remained so during World War II was the B-17. (Craven and Cate, Vol. 6, pp. 173-175)
- The 21 major bases were Barksdale, Bolling, Brooks, Chanute, Hamilton, Kelly, Langley, Lowry, March, Maxwell, McChord, Mitchel, Moffett, Randolph, Scott, Selfridge, and Wright Fields, and the Fairfield, Middletown, Sacramento, and San Antonio Air Depots.
- The 15 general officer billets consisted of four major generals, and eleven brigadier generals. In addition, the commanding general of GHQAF was promoted to lieutenant general. Only four Air Corps officers achieved the permanent rank of brigadier general before the AAF was created, and only two of those (Arnold, who was the last of the four, and Andrews) still had air force duties.
- These four squadrons were inactivated on 1 September 1936 and replaced by the 61st through 64th School Squadrons inclusive.
- Craven and Cate, Vol. 6, p. 31.
- Mooney and Layman (1944), p. 117.
- Tate (1998), pp. 185–188.
- Tate (1998), p. 30
- Maurer (1987), pp. 72–73.
- Maurer (1987),pp. 73–74.
- Tate (1998), pp. 45–47
- Greer (1985), p. 29."
- Craven and Cate Vol. 1, p. 29.
- Maurer (1987), p. 74
- Tate (1998), p. 60.
- Maurer (1987), p. 196.
- Tate (1998), pp. 138–140
- Maurer (1987), p. 200.
- Maurer (1987), p. 216.
- Maurer (1987), p. 197.
- Maurer (1987), pp. 213 and 365.
- Maurer (1987), pp. 214–215.
- Maurer (1987), pp. 216–219.
- Shiner, "The Heyday of the GHQ Air Force, 1935–1939", p. 136, 120, for the GHQAF figure.
- Foulois (1968), p. 274
- Rice (2004), p. 133
- Rice (2004), p. 1237
- Tate (1998), p. 78.
- Tate (1998), p. 161.
- Shiner, "The Coming of the GHQ Air Force", p. 116.
- Tate (1998), pp. 64–79.
- Bowman (1997), p. 7.
- Cate (1945), p. 17.
- Cate (1945), p. 15.
- Cate (1945), p. 16.
- Shiner, "The Coming of the GHQ Air Force", p. 121
- Greer (1985), p. 113."
- Tate (1988), p. 166.
- Tate (1998), p. 143
- Tate (1998), p. 167.
- Shiner, "The Hey Day of the GHQ Air Force, 1935–1939", p. 150.
- Nalty (1997), p. 192.
- Greer (1985), pp. 113–115
- Futrell (1989), pp. 85–86
- Futrell (1989), pp. 89-90
- Cate (1945), pp. 17–18.
- Shiner, "The Coming of the GHQ Air Force, 1935–1939", p. 133.
- Correll, John T. (September 2008). "GHQ Air Force", AIR FORCE Magazine, 91 (9), p.63.
- Maurer (1987). P. 298
- Craven and Cate Vol. 1, p. 31
- Correll, "GHQ Air Force", pp.63–64.
- Tate (1998), p. 146
- Tate (1998), pp. 146 and 150.
- Maurer (1987), p. 330.
- Craven and Cate Vol. 1, pp. 31–33
- Rice (2004), p. 131
- Mooney (1956), p. 2
- Tate (1998), p. 169
- Shiner, "The Heyday of the GHQ Air Force, 1935–1939", p. 146.
- Correll, John T.(December 2008), "Rendezvous With the Rex", AIR FORCE Magazine. 91 (12), p. 56
- Tate (1998), p. 169.
- Shiner, "The Coming of the GHQ Air Force", p. 159.
- Griffith (1999), p. 77.
- Craven and Cate, Vol. 6, p. 18.
- Correll, "GHQ Air Force", p.66.
- Craven and Cate Vol. 1, p. 114
- Craven and Cate Vol. 1, p. 115
- Nalty (1997), p. 180.
- Correll, John T. (July 2009). "But What About the Air Corps?". Air Force Magazine 92 (7)., p. 64-65.
- Craven and Cate, Vol. 6, p. 212
- Craven and Cate Vol. 1, pp. 109-110
- Message of President Roosevelt to the Congress, 12 January 1939 The entire message is reproduced here.
- Shiner, "The Coming of the GHQ Air Force", p. 155
- Coffey (1982), p. 179, 392 Note 27
- Williams (1953), p. 12. Public Law 18, 76th Congress, 1st Session.
- Cate (1945), p. 18.
- White (1949), p. 2
- Craven and Cate, Vol. 6, pp. 600-602
- Futrell (1989), p. 101
- Futrell (1951), pp. 23–24.
- Furtrell (1989), p. 102
- Craven and Cate Vol. 1, p. 105-106.
- Craven and Cate Vol. 6, pp. 134-136.
- Craven and Cate, Vol. 6, pp. 173-174
- Maurer (1987), p. 374.
- Futrell (1951), pp. 2–7
- Futrell (1951), p. 26.
- Tate (1998), p. 173.
- Official Register of the United States 1941, Volume I, U.S. Civil Service Commission publication, p. 48
- "Records of the Army Air Forces (AAF)". National Archives.gov. Retrieved 22 November 2010.
- Bowman, Martin W. (1997). USAAF Handbook 1939–1945, ISBN 0-8117-1822-0
- Coffey, Thomas M. (1982). Hap: The Story of the U.S. Air Force and the Man Who Built It, General Henry H. "Hap" Arnold, The Viking Press, ISBN 0-670-36069-4
- Cate, James L. (1945). The History of the Twentieth Air Force: Genesis (USAF Historical Study 112). AFHRA
- Craven, Wesley Frank, and Cate, James Lea, editors (1983). The Army Air Forces In World War II, Air Force Historical Studies Office, ISBN 0-912799-03-X (Vol. 1).
- (1948). Volume One - Plans and Early Operations: January 1939-August 1942
- (1949). Volume Two - Europe: Torch to Pointblank: August 1942-December 1943
- (1951). Volume Three - Europe: Argument to V-E Day: January 1944-May 1945
- (1950). Volume Four - The Pacific: Guadalcanal to Saipan: August 1942-July 1944
- (1953). Volume Five - The Pacific: Matterhorn to Nagasaki: June 1944-August1945
- (1955). Volume Six - Men and Planes
- (1958). Volume Seven - Services Around the World
- Foulois, Benjamin D. Glines, Carroll V. (1968). From the Wright Brothers to the Astronauts: The Memoirs of Major General Benjamin D. Foulois. New York: McGraw-Hill Book Company.
- Futrell, Robert F. (1989). Ideas, Concepts, Doctrine: Basic Thinking in the United States Air Force 1907–1960, Vol. I. Air University Press. ISBN 1-58566-029-9.
- Futrell, Robert F (1951). "Development of AAF Base Facilities in the United States 1939–1945". Air Force Historical Research Agency. Retrieved 15 January 2011.
- Greer, Thomas H. (1985). The Development of Air Doctrine in the Army Air Arm, 1917–1941. Maxwell Air Force Base: (USAF Historical Study 89). Center For Air Force History. Retrieved 10 November 2010.
- Griffith, Charles (1999). The Quest: Haywood Hansell and American Strategic Bombing in World War II. Maxwell Air Force Base: Air University Press. ISBN 1-58566-069-8.
- Maurer, Maurer (1987). Aviation in the U.S. Army, 1919–1939, Office of Air Force History, Washington, D.C. ISBN 1-4102-1391-9
- Maurer, Maurer (1961). Air Force Combat Units of World War II, Office of Air Force History. ISBN 0-405-12194-6
- Mooney, Chase C. and Layman, Martha E. (1944). "Organization of Military Aeronautics, 1907–1935 (Congressional and War Department Action)". (USAF Historical Study No. 25). AFHRA. Retrieved 14 December 2010.
- Mooney, Chase C. (1956). "Organization of the Army Air Arm, 1935–1945". (USAF Historical Study No. 10). AFHRA. Retrieved 27 March 2011.
- Nalty, Bernard C. (1997). "Reaction to the war in Europe". Winged Shield, Winged Sword: A History of the United States Air Force. Volume I. ISBN 0-16-049009-X.
- Rice, Rondall Ravon (2004). The Politics of Air Power: From Confrontation to Cooperation in Army Aviation Civil-Military Relations, University of Nebraska Press. ISBN 0-8032-3960-2
- Shiner, John F. (1997). "The Coming of the GHQ Air Force". Winged Shield, Winged Sword: A History of the United States Air Force. Volume I. ISBN 0-16-049009-X.
- Shiner, John F. (1997). "The Heyday of the GHQ Air Force, 1935–1939". Winged Shield, Winged Sword: A History of the United States Air Force. Volume I. ISBN 0-16-049009-X.
- Tate, Dr. James P. (1998). The Army and its Air Corps: Army Policy Toward Aviation 1919–1941. Maxwell Air Force Base: Air University Press. ISBN 0-16-061379-5.
- White, Jerry (1949). Combat Crew and Training Units in the AAF, 1939–45 (USAF Historical Study 61). Air Force Historical Research Agency.
- Williams, Edwin L., Jr. (1953). Legislative History of the AAF and USAF, 1941–1951 (USAF Historical Study No. 84). Air Force Historical Research Agency
- 2006 Almanac, Air Force Magazine: Journal of the Air Force Association, May 2006, Volume 89 Number 5
- U.S. Air Force Historical Studies Office
- Texas Military Veteran Video Oral Histories - Newton Gresham Library, Sam Houston State University Many of the veterans included in this collections served in the United States Army Air Corps and share their experiences.
Air Service, United States Army
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United States Army Air Forces