List of undesignated military aircraft of the United States

The United States Army, United States Navy, United States Marine Corps, United States Air Force and its predecessors, and United States Coast Guard operated aircraft when specific alphanumerical designation systems were not in use; these aircraft were referred to by their manufacturers' designations. There were also aircraft in service later that did not receive designations for other reasons, such as foreign military aircraft used for testing or special operations, and civil aircraft purchased off-the-shelf or impressed into service.

Wright Military Flyer

For aircraft of the Air Force and its preceding Army air services after the introduction of the 1919 United States Army Air Service aircraft designation system, see the list of United States Air Force aircraft designations (1919–1962). For Navy and Marine Corps aircraft that received designations from 1911–1917 and post–1922 United States Navy aircraft designation system, see the list of United States Navy aircraft designations (pre-1962). For the Army designation system used from 1956 to 1962, after the creation of the Air Force, see 1956 United States Army aircraft designation system. For all United States military aircraft after the implementation of the unified 1962 United States Tri-Service aircraft designation system, see list of United States Tri-Service aircraft designations.

Army

This list includes aircraft operated by the United States Army, Army Signal Corps, and American Expeditionary Forces.

Type	Origin	Class	Role	Introduced	Retired	Notes
Aeromarine M-1	US	Propeller	Trainer	1917		Single-engined piston biplane; evaluated but not accepted
Airco DH.9	UK	Propeller	Bomber	1917		Single-engined piston biplane
Ansaldo SVA	Italy	Propeller	Reconnaissance	1917		Single-engined piston biplane
Avro 504	UK	Propeller	Trainer	1913		Single-engined piston biplane
Bréguet 14	France	Propeller	Bomber/reconnaissance	1918		Single-engined piston biplane
Burgess-Dunne	US	Propeller	Experimental	1914 or 1915		Single-engined tailless piston biplane
Burgess Model F[1]	US	Propeller	Trainer	1911		Single-engined piston biplane; license-built Wright Model B
Burgess Model H[1]	US	Propeller	Trainer	1912		Single-engined piston biplane
Burgess Model I[1]	US	Propeller	Reconnaissance	1913	1915	Single-engined piston biplane floatplane
Burgess Model J[1]	US	Propeller	Scout	1913	1914	Single-engined piston biplane; license-built Wright Model C
Burgess Model U[1]	US	Propeller	Reconnaissance	1917		Single-engined piston biplane floatplane
Caudron G.3	France	Propeller	Reconnaissance	1917		Single-engined piston biplane
Caudron G.4	France	Propeller	Bomber	1917		Two-engined piston biplane
Caudron R.11	France	Propeller	Fighter	1918		Two-engined piston biplane
Curtiss Model D[2]	US	Propeller	Trainer	1911	1914	Single-engined piston biplane
Curtiss Model E[2]	US	Propeller	Utility	1911	1914	Single-engined piston biplane floatplane
Curtiss Model F[2]	US	Propeller	Utility	1913		Single-engined piston biplane flying boat
Curtiss Model G[2]	US	Propeller	Scout	1913		Single-engined piston biplane
Curtiss Model J[2]	US	Propeller	Experimental	1914		Single-engined piston biplane
Curtiss Model JN[2]	US	Propeller	Trainer	1915	1927	Single-engined piston biplane
Curtiss Model L[3]	US	Propeller	Trainer	1916		Single-engined piston triplane
Curtiss Model N[3]	US	Propeller	Trainer	1915		Single-engined piston biplane floatplane
Curtiss Model R[3]	US	Propeller	Utility	1915		Single-engined piston biplane
Curtiss Model S[3]	US	Propeller	Fighter	1917		Single-engined piston triplane; evaluated but not accepted
Dorand AR	France	Propeller	Reconnaissance	1917		Single-engined piston biplane
Farman F.40	France	Propeller	Reconnaissance	1915		Single-engined piston biplane
Farman F.50	France	Propeller	Bomber	1918		Two-engined piston biplane
LWF model V	US	Propeller	Trainer/reconnaissance	1916		Single-engined piston biplane
Martin R	US	Propeller	Reconnaissance	1916
Martin S	US	Propeller	Reconnaissance	1915		Single-engined piston biplane floatplane
Morane-Saulnier AI	France	Propeller	Trainer	1917		Single-engined piston parasol monoplane
Morane-Saulnier P	France	Propeller	Reconnaissance	1914		Single-engined piston parasol monoplane
Nieuport 10	France	Propeller	Trainer	1915		Single-engined piston biplane
Nieuport 11	France	Propeller	Trainer	1916		Single-engined piston biplane
Nieuport 12	France	Propeller	Trainer	1915		Single-engined piston biplane
Nieuport 17	France	Propeller	Trainer	1916		Single-engined piston biplane
Nieuport 21	France	Propeller	Trainer			Single-engined piston biplane
Nieuport 23	France	Propeller	Trainer			Single-engined piston biplane
Nieuport 24	France	Propeller	Trainer			Single-engined piston biplane
Nieuport 27	France	Propeller	Trainer			Single-engined piston biplane
Nieuport 28	France	Propeller	Trainer			Single-engined piston biplane
Nieuport 80	France	Propeller	Trainer			Single-engined piston biplane
Nieuport 81	France	Propeller	Trainer			Single-engined piston biplane
Nieuport 83	France	Propeller	Trainer			Single-engined piston biplane
Royal Aircraft Factory B.E.2	UK	Propeller				Single-engined piston biplane
Royal Aircraft Factory F.E.2	UK	Propeller				Single-engined piston biplane
Royal Aircraft Factory S.E.5	UK	Propeller	Fighter			Single-engined piston biplane
Salmson 2	France	Propeller	Trainer/reconnaissance	1918		Single-engined piston biplane
SIA 7	Italy	Propeller	Bomber/reconnaissance	1917		Single-engined piston biplane
Sopwith Camel	UK	Propeller	Fighter			Single-engined piston biplane
Sopwith Dolphin	UK	Propeller	Fighter			Single-engined piston biplane
Sopwith SOP.1	France	Propeller	Trainer			Single-engined piston biplane; French license-built Sopwith 1½ Strutter
SPAD S.VII	France	Propeller	Trainer	1917		Single-engined piston biplane
SPAD S.XI	France	Propeller	Trainer			Single-engined piston biplane
SPAD S.XIII	France	Propeller	Fighter	1918		Single-engined piston biplane
SPAD S.XVI	France	Propeller	Trainer			Single-engined piston biplane
Standard H-2	US	Propeller	Trainer	1916		Single-engined piston biplane
Standard J	US	Propeller	Trainer	1916		Single-engined piston biplane
Sturtevant S[4]	US	Propeller	Trainer/reconnaissance	1916		Single-engined piston biplane
Thomas D-5	US	Propeller	Trainer	1915
Voisin VIII	France	Propeller	Trainer			Single-engined piston biplane
Voisin X	France	Propeller	Trainer	1919		Single-engined piston biplane
Wright Model A	US	Propeller	Trainer	1909	1911	Single-engined piston biplane
Wright Model B	US	Propeller	Trainer/reconnaissance	1911	1914	Single-engined piston biplane
Wright Model C	US	Propeller	Scout	1912	1914	Single-engined piston biplane
Wright Model D	US	Propeller	Reconnaissance	1912	1914	Single-engined piston biplane

Air Force

A Curtiss JN-4 Jenny, one of the most widely used US Army Air Service aircraft of the World War I era

A US Army Air Service Martin GMB bomber, the first purpose-built American bomber aircraft

This list includes aircraft operated by the United States Air Force and its predecessors: the United States Army Air Service (USAAS), United States Army Air Corps (USAAC), and United States Army Air Forces (USAAF).

Type	Origin	Class	Role	Introduced	Retired	Notes
Airspeed Oxford[5]	UK	Propeller	Trainer	1942	1945	Two-engined piston monoplane; operated by US units in conjunction with UK Royal Air Force
Albree Pigeon-Fraser	US	Propeller	Fighter	1918		Single-engined piston monoplane
Antonov An-28[6]	Ukraine	Propeller	Transport			Two-engined turboprop monoplane
Avro Anson[5]	UK	Propeller	Transport	1942	1945	Two-engined piston monoplane; operated by US units in conjunction with UK Royal Air Force. Canadian built Ansons operated as AT-20[7]
Boeing Model 4	US	Propeller	Trainer	1918		Single-engined piston biplane with floats
Consolidated LB-30	US	Propeller	Bomber	1941		Four-engined piston monoplane; UK Liberator B Mk II aircraft requisitioned by USAAF and operated under company designation rather than as B-24
Curtiss 18	US	Propeller	Fighter	1918		Single-engined piston biplane
C-class blimp[8]	US	Airship	Patrol	1921		Two-engined piston blimp; two aircraft transferred from US Navy
Curtiss Model JN	US	Propeller	Trainer	1918	1927	Single-engined piston biplane
Curtiss Model R	US	Propeller	Utility	1918		Single-engined piston biplane
D-class blimp[9]	US	Airship	Patrol	1921		Two-engined piston blimp; four aircraft transferred from US Navy
Dayton-Wright/Fisher DH-4	US	Propeller	Bomber	1918	1932	Single-engined piston biplane; license-built variant of the Airco DH.4
de Havilland Dominie[10]	UK	Propeller	Transport	1942	1945	Two-engined piston biplane; operated by US units in conjunction with UK Royal Air Force
de Havilland Mosquito[10]	UK	Propeller	Bomber	1942	1945	Two-engined piston monoplane; operated by US units in conjunction with UK Royal Air Force
de Havilland Tiger Moth[10]	UK	Propeller	Trainer	1942	1945	Single-engined piston biplane; operated by US units in conjunction with UK Royal Air Force
Douglas Boston[11]	US	Propeller	Bomber	1942	1945	Two-engined piston monoplane; UK version of Douglas A-20 operated in conjunction with UK Royal Air Force
Engineering Division USB-1	US	Propeller	Fighter	1918		Single-engined piston biplane; license-built variant of the Bristol F.2
Engineering Division USB-2	US	Propeller	Fighter	1918		Single-engined piston biplane; license-built variant of the Bristol F.2
Engineering Division USD-9	US	Propeller	Bomber			Single-engined piston biplane; license-built variant of the Airco DH.9
Engineering Division XB-1	US	Propeller	Reconnaissance			Single-engined piston biplane; license-built variant of the Bristol F.2
Fokker D.VII[12]	Germany	Propeller	Trainer	1918		Single-engined piston biplane; obtained as German war reparations, some transferred to US Navy
Hawker Hurricane[10]	UK	Propeller	Fighter	1942	1945	Single-engined piston monoplane; operated by US units in conjunction with UK Royal Air Force
Heinkel HD 22[13]	Germany	Propeller	Utility	1930		Single-engined piston biplane; one purchased for US Military Attaché in Germany
Heinrich Pursuit	US	Propeller	Fighter	1918		Single-engined piston biplane
LWF model V	US	Propeller	Trainer/reconnaissance	1918		Single-engined piston biplane
Martin GMB	US	Propeller	Bomber	1918		Two-engined piston biplane
Mil Mi-171[6]	Russia	Rotorcraft	Transport			Two-engined turboshaft helicopter
Miles Master[10]	UK	Propeller	Trainer/reconnaissance	1942	1945	Single-engined piston monoplane; operated by US units in conjunction with UK Royal Air Force
Morane-Saulnier MS-234[13]	France	Propeller	Utility	1932	1935	Single-engined piston biplane; one purchased for US Military Attaché in Paris
Orenco D	US	Propeller	Fighter	1919		Single-engined piston biplane; also built by Curtiss
Packard-Le Père LUSAC-11	US	Propeller	Fighter	1918		Single-engined piston biplane
Royal Aircraft Factory S.E.5	UK	Propeller	Fighter	1918		Single-engined piston biplane
Supermarine Spitfire[10]	UK	Propeller	Fighter	1942	1945	Single-engined piston monoplane; operated by US units in conjunction with UK Royal Air Force
Verville VCP	US	Propeller	Fighter/racer	1920		Single-engined piston biplane; later variants designated PW-1 and R-1
Vought VE-7	US	Propeller	Fighter/trainer	1918		Single-engined piston biplane
Vought VE-8	US	Propeller	Fighter/trainer	1918		Single-engined piston biplane
Vought VE-9	US	Propeller	Fighter/trainer	1927		Single-engined piston biplane; improved VE-7

Navy, Marine Corps and Coast Guard

A beached US Navy Curtiss HS flying boat, circa 1917. Built in large numbers, the HS first saw service in World War I.

A trio of US Navy Vought VE-7s in flight, circa 1920s

This list includes aircraft operated by the United States Navy, United States Marine Corps and United States Coast Guard.

Aviation in the Marine Corps and Coast Guard has historically been subsidiary to naval aviation, with Marine Corps aircraft being procured by the Navy. Many Coast Guard aircraft have been procured from the Navy or the Air Force and its predecessors, typically carrying designations conforming to equivalent types operated by those services, but the Coast Guard has also independently obtained several aircraft types without a military designation or an equivalent.

The Navy's rigid airships were commissioned as warships and given hull classification symbols, but many of its other lighter-than-air craft never received formal designations. Until the 1940s, Navy blimps were grouped into classes by nominal power and size; within each class, individual aircraft often had significant design variations, and were sometimes sourced from different manufacturers.^[14] Spherical crewed free gas balloons used for airship crew training were considered ZF-class aircraft but categorically never received formal designations and were identified only by serial number and volume; similarly, crewed kite balloons and uncrewed barrage balloons were considered ZK-class, but were undesignated.^[15]

Type	Origin	Class	Role	Introduced	Retired	Notes
Aeromarine AS[16]	US	Propeller	Scout	1917		Single-engined piston biplane floatplane
Aeromarine 39[17]	US	Propeller	Trainer	1917		Single-engined piston biplane floatplane
Aeromarine 40[16]	US	Propeller	Trainer	1918		Single-engined piston flying boat
Aeromarine 700[18]	US	Propeller	Torpedo bomber	1917		Single-engined piston biplane floatplane
B-class blimp[19]	US	Airship	Patrol	1917		Single-engined piston blimp
Blackburn Swift[20]	UK	Propeller	Torpedo bomber	1921		Single-engined piston biplane; two purchased for evaluation
Boeing B-314[21]	US	Propeller	Transport	1942	1945	Four-engined piston monoplane flying boat; impressed from Pan Am, Army designation of C-98 disregarded
Bristol Bulldog[20]	UK	Propeller	Fighter	1929		Single-engined piston biplane; two purchased for evaluation
C-class blimp[8][22]	US	Airship	Patrol	1918		Two-engined piston blimp
Caproni Ca.44[23]	Italy	Propeller	Bomber	1918		Three-engined piston bomber
Caspar U.1[23]	Germany	Propeller	Scout	1922		Single-engined piston biplane floatplane; two purchased for evaluation, not accepted for service
Consolidated 21-A[24][25]	US	Propeller	Trainer	1931	1941	Single-engined piston biplane; single aircraft transferred from USAAC to Coast Guard, later designated N4Y-1
Curtiss-Cox Cactus Kitten[26]	US	Propeller	Racer	1922		Single-engined piston triplane; single aircraft purchased from civil owner
Curtiss 18[27]	US	Propeller	Fighter/racer	1918	1923	Single-engined piston biplane
Curtiss F-5L[28]	US	Propeller	Patrol	1918		Two-engined piston biplane flying boat; evolution of RNAS Felixstowe design, later designated PN
Curtiss H[29]	US	Propeller	Patrol	1916	1928	Two-engined piston biplane flying boat
Curtiss HA[30]	US	Propeller	Fighter	1918		Single-engined piston biplane; none ordered, but test aircraft were retained by Navy
Curtiss HS[31]	US	Propeller	Patrol	1917		Single-engined piston biplane flying boat
Curtiss JN[32]	US	Propeller	Trainer	1917	1926	Single-engined piston biplane
Curtiss Model MF[33]	US	Propeller	Patrol	1918		Single-engined piston biplane flying boat
Curtiss NC[34]	US	Propeller	Patrol	1918		Four-engined piston biplane flying boat
Curtiss N-9[35]	US	Propeller	Reconnaissance/trainer	1917	1926	Single-engined piston biplane floatplane
Curtiss Model R[36]	US	Propeller	Scout/trainer	1918		Single-engined piston biplane; some operated as floatplanes, some used for torpedo bombing trials
D-class blimp[9][22]	US	Airship	Patrol	1919	1921	Two-engined piston blimp; transferred to US Army
DN-1[37]	US	Airship	Patrol	1916	1917	Two-engined piston blimp; single aircraft, retroactively considered the A-class blimp
de Havilland DH.9A[38]	UK	Propeller	Bomber	1918		Single-engined piston biplane
Detroit ZMC-2[39]	US	Airship	Patrol	1929	1941	Two-engined piston blimp; single aircraft
Donnet-Denhaut flying boat[40]	France	Propeller	Patrol	1918		Single-engined piston biplane flying boat
Dornier CsII[41]	Germany	Propeller	Experimental	1920		Single-engined piston monoplane flying boat; one purchased to study its metal construction
Douglas D-558-1 Skystreak[42]	US	Jet	Experimental	1947	1953	Single-engined jet monoplane; high-speed research aircraft operated in conjunction with NACA
Douglas D-558-2 Skyrocket[43]	US	Jet/rocket	Experimental	1948	1956	Hybrid jet/rocket monoplane; high-speed research aircraft operated in conjunction with NACA
E-class blimp[44][22]	US	Airship	Patrol	1919	1924	Single-engined piston blimp; single aircraft
F-class blimp[44][45]	US	Airship	Patrol	1919	1923	Single-engined piston blimp; single aircraft
FBA 17HT4[24][46]	France	Propeller	Trainer	1931		Single-engined piston biplane flying boat; one Schreck-built aircraft purchased by Coast Guard, later license-built in US as Viking OO-1
FBA Type H[41]	France/Italy	Propeller	Patrol	1918		Single-engined piston biplane flying boat
Fokker C.I[12]	Netherlands	Propeller		1921		Single-engined piston biplane; three purchased for Marine Corps, originally built in 1918 for Germany but never delivered
Fokker D.VII[12]	Germany	Propeller	Trainer	1918	1924	Single-engined piston biplane; German war reparations transferred from US Army
Franklin PS-2[47]	US	Glider	Trainer	1930s?		Monoplane glider
Gallaudet D-1[48]	US	Propeller	Experimental	1918	1918	Two-engined piston biplane floatplane
Gallaudet D-4[48]	US	Propeller	Experimental	1918	1918	Single-engined piston biplane floatplane; development of Gallaudet D-1
G-class blimp[49]	US	Airship	Patrol/trainer	1935	1959	Two-engined piston blimp; later designated ZNN-G
General Aviation FLB[24][50]	US	Propeller	Search and rescue	1932		Two-engined piston monoplane flying boat; operated only by Coast Guard, later designated PJ
H-class blimp[51][52]	US	Airship	Patrol/trainer	1921	1921	Single-engined piston blimp
Hanriot HD.1[53]	France	Propeller	Fighter	1918		Single-engined piston biplane; landplane conversions from HD.2 floatplanes
Hanriot HD.2[53]	France	Propeller	Fighter	1918		Single-engined piston biplane floatplane
J-class blimp[54][52]	US	Airship	Patrol/trainer	1922	1940	Two-engined piston blimp
Junkers-Larsen JL-6[53]	Germany	Propeller	Experimental	1920?		Single-engined piston monoplane floatplane; three purchased for evaluation
K-class blimp[55]	US	Airship	Patrol/trainer	1931		Two-engined piston blimp; first aircraft (K-1) differed substantially from others; later designated ZNP-K
L-class blimp[56]	US	Airship	Trainer	1937		Two-engined piston blimp; later designated ZNN-L
Levy-Lepen HB2[57]	France	Propeller	Patrol	1918		Single-engined piston biplane flying boat
Loening LS[58]	US	Propeller	Reconnaissance/racer	1918		Single-engined piston monoplane; floatplane version of Loening M-8
Loening M-8[58]	US	Propeller	Reconnaissance/racer	1918		Single-engined piston monoplane
Macchi M.5[57]	Italy	Propeller	Fighter	1918		Single-engined piston biplane flying boat
Macchi M.16[59]	Italy	Propeller	Scout	1922		Single-engined piston biplane floatplane; three purchased for evaluation, not accepted for service
Martin M-130[21]	US	Propeller	Transport	1942	1945	Four-engined piston monoplane flying boat; impressed from Pan Am
Morane-Saulnier AR-1[60]	France	Propeller	Trainer	1921		Single-engined piston parasol monoplane
Naval Aircraft Factory N-1[61]	US	Propeller	Patrol	1918	1918	Single-engined piston biplane floatplane
Naval Aircraft Factory PT[62]	US	Propeller	Torpedo bomber	1922		Single-engined piston biplane floatplane; built largely from Curtiss HS and R-6 spare parts
Naval Aircraft Factory SA[63]	US	Propeller	Scout	1919	1919	Single-engined piston monoplane
Naval Aircraft Factory TF[64]	US	Propeller	Fighter	1918	1923	Two-engined piston biplane flying boat
Naval Aircraft Factory TG[65]	US	Propeller	Trainer	1922		Single-engined piston biplane floatplane
Naval Aircraft Factory TS[66]	US	Propeller	Fighter	1922		Single-engined piston biplane; some operated as floatplanes, later designated F4C
Nieuport 28[60]	France	Propeller	Experimental	1919		Single-engined piston biplane; transferred after WWI from US Army and used for ship platform launching trials
NS class airship[67]	UK	Airship	Patrol	1918		Two-engined piston blimp; single aircraft
O-1[67][68]	Italy	Airship	Experimental	1919	1921–1922?	Two-engined piston airship; single aircraft
Parnall Panther[69]	UK	Propeller	Fighter	1919		Single-engined piston biplane
Romeo Ro.1[70]	Italy	Propeller	Utility	1928		Single-engined piston biplane; one purchased for US Naval Attaché in Rome
Royal Aircraft Factory S.E.5A[70]	UK	Propeller	Fighter	1918		Single-engined piston biplane
RRG Prüfling[71]	Germany	Glider	Experimental	1930?		Monoplane glider; one purchased from US civil flight school for airship launch tests conducted in early 1930
Seversky NF-1[72]	US	Propeller	Fighter	1935		Single-engined piston monoplane; none ordered, but the test aircraft was retained by the Navy; called FN-1 by some sources
Sopwith Baby[73]	UK	Propeller	Scout	1917	1918	Single-engined piston biplane floatplane; at least seven evaluated, not accepted for service
Sopwith Camel[73]	UK	Propeller	Fighter	1917		Single-engined piston biplane
Sopwith 1½ Strutter[74]	UK	Propeller	Reconnaissance	1918		Single-engined piston biplane
SS class airship[67]	UK	Airship	Patrol	1918		Single-engined piston blimp
SST class airship[67]	UK	Airship	Patrol	1918		Two-engined piston blimp; single aircraft
SSZ class airship[67]	UK	Airship	Patrol	1918		Single-engined piston blimp
TC-class blimp[75]	US	Airship	Patrol	1938	1943	Two-engined piston blimp; two aircraft transferred from US Army, never given naval designations
Tellier flying boat[74]	France	Propeller	Patrol	1917		Single-engined piston biplane flying boat
Thomas-Morse MB-3[76]	US	Propeller	Trainer	1921		Single-engined piston biplane; transferred from US Army for use by Marine Corps
Thomas-Morse S-4[77]	US	Propeller	Trainer	1917		Single-engined piston biplane
Thomas-Morse S-5[76]	US	Propeller	Scout	1917		Single-engined piston biplane; diverted from US Army S-4 order and refitted as floatplanes
Thomas-Morse SH-4[77]	US	Propeller	Reconnaissance/trainer	1917		Single-engined piston biplane floatplane
Vickers Viking[78]	US	Propeller	Experimental	1921		Single-engined piston biplane amphibian
Vought VE-7[79]	US	Propeller	Fighter/trainer	1918		Single-engined piston biplane; some operated as floatplanes
Vought VE-9[79]	US	Propeller	Reconnaissance	1918		Single-engined piston biplane; some operated as floatplanes

See also

• United States military aircraft designation systems
• List of active United States military aircraft
• List of military aircraft of the United States
• List of United States Navy aircraft designations (pre-1962)
• List of U.S. DoD aircraft designations
• United States military aircraft engine designations
• United States military aircraft serials