[sci.military] F-117 vs F-19 -- List of Army/Air Force Fighter Designations

military@cbnews.att.com (William B. Thacker) (07/30/90)

From: ihlpm!jfb (Joseph F Baugher +1 708 713 4548)

There seems to be some confusion about the designations of American fighter 
planes.  Here's a summary I put together which I hope will clear up some of the
confusion.  I hope that you have as much fun reading this as I had in 
writing it.   Enjoy!!!

Up until 1920, there was no unified designation scheme for American combat
aircraft.  Before that time, aircraft entered service under their original
manufacturer's designation (e. g. SPAD XIII, DH-4, S.E.5, etc).  In 1920, it
was decided that some sort of unified designation scheme was needed for
American combat planes.  In that year, the Army Air Service adopted a new 
designation scheme for all newly-procured aircraft.  Henceforth, all Army
aircraft were to be subdivided into 15 basic categories, seven of which 
were pursuit-type categories:

		PA			Pursuit, Air-Cooled
		PG			Pursuit, Ground Attack
		PN			Pursuit, Night
		PS			Pursuit, Special Alert
		PW			Pursuit, Water-Cooled
		R			Racer
		TP			Pursuit, Two-seat

(Yes, that's right, R for Racer; the Army raced planes back in those days!).
The category letters were followed by a chronological number.  This number gave 
the sequence in which an aircraft in a given category was ordered into service. 
The chronological number was often (but not always) followed by a letter which
designated modifications of the aircraft in the order in which they entered 
service.  For example the Boeing PW-9C was the ninth basic type of pursuit 
aircraft powered by a water-cooled engine to enter service with the Army Air 
Service.  The letter "C" indicates the third modification of the basic PW-9
aircraft to enter service.  

There were a few exceptions to this scheme.  For example, the S. E. 5 
remained in service until 1927, and kept its original designation.

In 1924, the basic Army scheme was changed.  It was decided that it made no
sense to classify pursuit aircraft by the type of engine which powered them,
and the seven pursuit categories were replaced by four:

		F		Photographic reconnaissance
		FM		Fighter, Multiplace
		P		Pursuit
		PB		Pursuit, Biplace

The basic philosophy of the chronological numbering scheme remained the same.
The chronological numbers for all four categories were started at one.
For example, the Boeing P-12 was the twelfth basic pursuit aircraft to be
ordered by the Army after 1924.  Aircraft already in service at the time
of the change were redesignated; for example, the Curtiss PW-8 became
the Curtiss P-1. 

The basic Army designation scheme is summarized as follows:

   (prefix)(type)-(chron. num.)(variant)-(production block)-(factory)

where "type" is a letter indicating basic category of aircraft (P for
pursuit, B for bomber, C for transport, etc) and "chron. num" is the
chronological number of the aircraft of that particular type.  The "prefix"
was not always used; it designated special features or roles (such as X
for experimental).   The "variant" was a letter in the sequence A, B, C, ...
which indicated the version of that particular aircraft in order
of its entry into service.  The "production-block" number was introduced
in 1942 to keep track of relatively minor modifications of aircraft not
deemed to be sufficiently significant to merit a separate variant letter.
Finally, "factory" stood for a two-letter code indicating the factory
where the aircraft was built.  For example, the first of the "bubble-
canopy" Thunderbolts was designated by

			P-47D-25-RE

which meant that it was the forty-seventh basic pursuit aircraft to be
ordered by the Army, it was the fourth basic variant, and was manufactured
in the 25-th production block coming off the line at the Republic Aircraft
Corporation in Farmingdale, New York. 

This designation scheme remained in force all throughout the Second World
War.  In 1948, the Army Air Forces were split off from the Army and became
the Air Force.  This evidently called for a new designation scheme.  
The four fighter categories were replaced by one, designated by F.  However,
it was decided NOT to start the chronological numbering system over again from
one.  Fighter aircraft already in service at the time of the change had the P
replaced by F, but kept their original chronological number.  For example,
the North American P-51 became the F-51, the Lockheed P-80 became the F-80, 
etc.  As newer aircraft were ordered into service by the Air Force, they
were assigned succeeding chronological numbers in the order in which they
entered service. 

Here is a complete list of all pursuit aircraft in the P/F series:


Curtiss P-1 Hawk           Single seat biplane powered by 435 hp Curtiss 
			   V-1150.  98 built.  First of famed Curtiss
 			   Hawk series of fighters.  Was formerly PW-8.

Curtiss P-2 Hawk	   Version of P-1 with V-1150 engine replaced by
			   500 hp Curtiss V-1400.  Unsatisfactory
                           performance.  Only 3 built.

Curtiss P-3 Hawk	   Adaptation of Curtiss P-1 to radial Pratt &
			   Whitney R-1340 engine.  Not considered superior
 			   to water-cooled powered versions.  Only 5 built.

Boeing XP-4                Modification of PW-9 to test Packard 1A-1500
                           turbosupercharged engine.  Performance was worse
                           than that of original PW-9 and the program was
                           abandoned.

Curtiss P-5 Superhawk	   Version of Curtiss P-1 with turbosupercharged
			   V-1150 435 hp engine.  Only 5 built.

Curtiss P-6 Hawk	   Modification of P-1 powered by Curtiss V-1570
			   Conqueror engine of 600 hp.  50 built.
			   In my opinion, the P-6E variant with its wheel
			   spats was one of the best-looking biplane pursuits
			   ever produced.

Boeing XP-7                PW-9D modified to test Curtiss V-1570 Conqueror
                           engine.  Performance not significantly improved
                           over standard PW-9D to warrant a production order.
			   Only one built.

Boeing XP-8                Single-seat biplane fighter powered by Packard
			   2A-1530 liquid-cooled engine.  Disappointing 
			   performance did not warrant a production order.
			   Only one built.

Boeing XP-9                Single-seat monoplane fighter with high-mounted
			   wing and external bracing.  Severe instability
                           problems and very poor cockpit visibility.  Project
                           abandoned after only a few test flights.

Curtiss XP-10		   Single-seat high-altitude biplane fighter with
			   gull-type upper wing.  Only one built.  Scrapped
			   after only a few flights.

Curtiss P-11 Hawk	   P-6 converted to use of the 600 hp H-1640 Chieftain
		           12-cylinder air-cooled engine.  Project abandoned
			   before conversion could be completed and aircraft
			   reverted back to P-6 standards.  One converted to
			   YP-20.

Boeing P-12                Single-seat biplane fighter powered by Pratt and
			   Whitney R-1340 radial engine.  Most successful of
			   the "between-wars" fighters.  341 built.

Thomas-Morse XP-13 Viper   Single-seat biplane powered by Curtiss H-1640
			   Chieftain engine.  All-metal structure and
                           corrugated aluminum skin.  Overheating problems 
                           with Chieftain engine proved insoluble, and project
                           was cancelled.

Curtiss XP-14		   Proposed Curtiss-built version of Thomas-Morse XP-13.
			   Never built.

Boeing XP-15               Conversion of F4B (Navy version of P-12) to monoplane
			   configuration.  Parasol wing mounted above the
			   fuselage.  Poor handling and too high a landing 
                           speed led to lack of any production orders.  Only
			   one built.

Berliner-Joyce P-16        Two seat biplane fighter.  Upper wing roots were
                           faired into the fuselage.  Curtiss V-1570 liquid-
                           cooled engine.  25 built.  Later redesignated PB-1.

Curtiss XP-17 Hawk	   Version of Curtiss P-1 re-engined with Wright V-1460
			   Tornado inline aircooled engine.  Only one built.  
          
Curtiss XP-18		   Proposed biplane fighter built around Wright V-1560
			   12-cylinder inline air-cooled engine.  This engine
			   was cancelled, and the aircraft never got off the
		           drawing board.

Curtiss XP-19		   Proposed low-wing monoplane fighter built around
			   Wright V-1560 12-cylinder inline air-cooled engine.
                           Development abandoned when engine was cancelled.
			   Never got off the drawing board.

Curtiss YP-20 Hawk	   Conversion of P-11 to use of 650 hp Wright R-1870
			   Cyclone air-cooled radial.  Later converted to XP-22.

Curtiss P-21               Conversion of P-1 Hawk to P & W R-985 radial
                           engine.  Only one built.

Curtiss XP-22 Hawk	   Conversion of P-6A to use Curtiss V-1570 inline
			   engine.  Acted as prototype for P-6E.

Curtiss XP-23 Hawk	   Last of the Hawk series of pursuit biplanes. 
			   Turbosupercharged Conqueror engine, 3-blade prop,
			   all-metal fuselage, metal wings with fabric covering.
			   Only one built.  Abandoned due to advent of Boeing
			   P-26 monoplane.

Lockheed YP-24		   Two-seat, low-wing, cantilever monoplane with
                           retractable undercarriage.  Based on Lockheed Altair
                           civil transport.  Project abandoned when parent
                           company (Detroit Aircraft) went belly-up.  Project
                           became basis of Consolidated Y1P-25.

Consolidated Y1P-25        Revision of Lockheed YP-24 two-seat fighter with
                           metal wings.  Powered by Curtiss V-1570 liquid-
                           cooled engine.  Two built.  Served as prototype
                           for P-30.
       
Boeing P-26                The famous "Peashooter".  Single-seat monoplane
			   fighter powered by P & W R-1340 radial engine.
			   136 built.  Some service at beginning of World War 2.

Consolidated YP-27         Proposed version of Y1P-25 with radial P & W 
                           R-1340-21 engine.  Never built.

Consolidated YP-28         Proposed version of Y1P-25 with radial P & W 
                           R-1340-19 engine.  Never built.

Boeing YP-29               All-metal low wing monoplane with enclosed cockpit.
			   Cantilever wing and semi-retractable undercarriage.
                           P & W R-1340 radial engine.  Not enough of an advance
                           over P-26 to warrant a production order.  Only 2 
                           built.

Consolidated P-30          Two-seat low-wing monoplane fighter powered by
			   Curtiss V-1710 engine with turbosupercharger.  
			   Much too heavy for engine power available.  54
                           delivered.  Later redesignated PB-2A.

Curtiss XP-31 Swift	   First monoplane Curtiss pursuit design.  Curtiss
			   V-1570 inline engine.  Lost out to Boeing P-26.
		           Only one built.

Boeing XP-32               Developed version of P-29 with P & W R-1535 engine.
			   Never got past the design stage.

Consolidated XP-33         Proposed adaptation of P-30 to take P & W R-1830
                           radial engine.  Never built.

Wedell-Williams XP-34      Single-seat, low-winged, enclosed cockpit pursuit
                           aircraft powered by P & W R-1535.  Based upon
                           extensive experience of manufacturer with racing 
                           planes.  Project cancelled before any prototypes
                           could be completed.
                           
Seversky P-35		   Cantilever, low-wing monoplane with semi-retractable
			   landing gear.  Beat out Curtiss P-36 in initial
		           competition.  Slow deliveries caused Army to order
                           P-36.  77 P-35s built.  120 ordered by Sweden, of
                           which only 60 were delivered.  Rest were siezed by
                           Army, which operated them as P-35A.  Some action in
                           Philippines.  Totally unsuited for combat, due to
                           lack of armor and self-sealing tanks.

Curtiss P-36 Hawk	   Closed-cabin, all-metal monoplane fighter. Air-cooled
			   radial engine (Wright R-1820).  First American-
		           designed fighter to enter large-scale production.
			   210 built for Army, many more for export.  Flew with
			   French during 1940 campaign.  Gave good account of
			   itself.  Saw combat in Army service at Pearl Harbor.
			   Some given to Vichy French, and was the only aircraft
			   to fight on both sides in World War 2.

Curtiss XP-37		   Adaptation of P-36 airframe to Allison V-1710 in-
			   line water-cooled engine.  Cockpit pushed far aft.
			   Problems with turbosupercharger caused cancellation
			   in favor of P-40.  Onlyh one built.

Lockheed P-38 Lightning    The famous "Fork-Tailed Devil".  Two Allison liquid-
			   cooled engines.  Twin booms, twin tail.  10,037 
			   built.

Bell P-39 Airacobra        Single seat, low-winged monoplane powered by Allison
                           V-1710 liquid-cooled engine mounted behind pilot and
                           driving propellor via a shaft.  9558 built.
                           Many sent to the Russian front.  Not considered one
                           of the better fighters of World War 2.  Lousy
                           performance at high altitude, but good performance
                           down on the deck.  Ineffective in American service
                           against the nimble Zero, but gave a good account
                           of itself in Soviet service where it excelled as a
                           low-altitude fighter-bomber and tank-buster.

Curtiss P-40 Warhawk,      The famous Flying Tiger shark-teethed airplane.   
	Tomahawk,	   Started life as a straightforward conversion of
	 Kittyhawk         P-36 to use of Allison V-1710 inline engine.  
		           Fought on all fronts in World War 2.  Served with
			   many allied air forces.  13,738 built.  Many
			   different modifications.

Seversky XP-41		   Adaptation of P-35 with fully-retractable landing
			   gear and more powerful R-1830-19 engine with super-
			   charger.  Only one built.

Curtiss XP-42 		   Conversion of P-36 airframe to take new aerodynamic
			   cowling around radial engine to improve performance.
			   Lost out to P-40 in competition.  Only one built.

Republic P-43 Lancer	   Adaptation of XP-41 with turbosupercharged R-1830-35
		           engine. Disappointing performance.  272 built.
			   108 given to Chinese.  Little success against the
                           Japanese.   

Republic P-44 Rocket       Adaptation of P-43 with R-2180 or R-2800 engine.
			   Cancelled in favor of P-47 which showed much more
                           promise.  Never proceeded past the design state.

Bell XP-45                 Designation for first production version of Bell
                           Airacobra.  Designation later changed to P-39C.

Curtiss XP-46		   Proposed follow-on to P-40, based on European
			   advances in combat aircraft design.  Ten guns,
		           automatic leading edge slots, fully-retractable
			   undercarriage.  Disappointing performance.  Abandoned
			   in favor of P-40D.  Only 2 built.

Republic P-47 Thunderbolt  The famous "Jug" fighter-bomber and escort fighter
			   of World War 2.  15,660 built. 

Douglas XP-48		   Proposal for single-engine ultra light-weight
			   fighter.  Performance estimates deemed overly
                           optimistic and none were ordered.  Never got off
                           the drawing board.
 
Lockheed XP-49		   Improved version of P-38 with two Continental
			   XIV-1430 engines.  New nacelles, new tail booms,
			   pressurized cockpit.  Performance not as good as
			   standard P-38J.  Project cancelled after only one
			   example was built.

Grumman XP-50		   "De-navalized" version of XF5F-1 Skyrocket twin-
			   engined, carrier-based monoplane fighter.  Two
			   Wright R-1820 radials.  Tricycle landing gear.
			   Prototype crashed on test flight, and project was
			   abandoned.  Only one built.

North American P-51	   The incomparable Mustang!!!  What more need be said?
		Mustang    Probably the best all-round fighter of World War 2.
			   Total of 14,819 built.  

Bell XP-52                 Mid-wing monoplane with engines, cockpit and
                           armament in fuselage.  Tailplane mounted on twin
                           booms attached to wings.  Continetal XIV-1430
                           proposed as powerplant.  Order canceled in favor
                           of XP-59.

Curtiss XP-53	           Proposal for follow-on to P-40 with laminar flow
			   wings and Continental V-1430 liquid-cooled engine.
			   Two airframes built.  Project was cancelled when
			   the engine failed to materialize.

Vultee XP-54 Swoose        Unconventional high-altitude interceptor powered by
          Goose		   Lycoming XH-2470 engine of 2300 hp.  Fuselage
                           had engine in rear, driving a pusher prop.  The
                           tailplane was mounted on twin booms projecting from
                           the rear of an inverted gull wing.  Disappointing
                           performance of the engine caused performance to
                           fall well below expectations.  Project was
                           cancelled after only two were built.
 
Curtiss XP-55 Ascender     Unorthodox canard aircraft with Allison V-1710
			   in extreme rear of fuselage driving pusher prop.
			   Swept-back wings.  Performance problems caused
                           project to be abandoned.  Only 3 built.

Northrop XP-56 Black       Flying wing single-seat fighter with Pratt & Whitney
	   Bullet          R-2800 engine driving pusher contrarotating props.
			   Underpowered, handling problems.  Canceled because
			   of greater promise of jet-powered aircraft.  Only
			   one built.

Tucker XP-57               Proposal for lightweight fighter based on 720 hp
                           Miller engine.  Tucker company bellied-up before
                           any detailed drawings could be completed.

Lockheed XP-58 Chain       Two-seat, long range escort fighter. Two Allison
	Lightning          V-3420 inline engines.  Constant changes in
			   requirements caused the aircraft to be delayed
			   until the war was almost over.  Project cancelled.
			   Only one built.

Bell P-59 Airacomet        Original P-59 proposal was for a more powerful
                           variant of XP-52 pusher fighter.  This was covertly
                           abandoned and used as a "cover" for the development
                           of the first American jet powered aircraft, which
                           was designated as P-59A.  Conventional mid-wing
                           monoplane with two jet engines, one on either side
                           of the fuselage, mounted under the wing roots.
                           50 built.  Poor performance made it unsuitable for
                           combat.  Used only as a fighter-trainer to gain
                           experience with jet operations.

Curtiss P-60		   Abortive attempt to produce improved P-40.
			   Several versions produced, powered by Packard Merlin
			   and Allison V-1710 inlines , and by Pratt & Whitney
			   R-2800 radial.  All had disappointing performances.
			   Project finally cancelled.

Northrop P-61 Black        Twin engine, twin boom night fighter powered by two
		Widow      Pratt & Whitney R-2800 engines.  Four 20 mm cannon
			   in fuselage, four 0.50 cal machine guns in dorsal
			   turret.  Crew of three.  Total of 706 built.

Curtiss XP-62		   Design for high-altitude interceptor based on 
		           Wright R-3350 18-cylinder radial with supercharger
			   driving contra-rotating propellors.  Disappointing
			   performance and changing requirements caused project
			   to be cancelled after only one P-62 was built.

Bell P-63 Kingcobra        Extensively-modified version of P-39 Airacobra with
                           laminar flow wings, a new engine, a taller tail,
                           and a four-blade propellor.  Intended as close-
                           support aircraft.  Total of 3303 built, most of which
                           were sent to the Russian front.

North American P-64        NA-50 was private-venture single-seat pursuit based
                           on NA-16 trainer (ancestor of the Texan).  Six 
                           NA-50s ordered by Thailand.  Siezed by U. S.
                           government before they could be delivered.  Re-
                           designated as P-64 and used as fighter-trainers.

Grumman XP-65		   Proposed Army Air Forces version of Navy F7F Tigercat
			   twin-engined carrier-based fighter.  Project was
			   cancelled before work could start.

Vultee P-66 Vanguard       Private venture single-seat low-winged fighter
      			   powered by  P & W R-1830.  Ordered by Sweden, but
			   embargoed before they could be shipped.  129 sent
                           to China.  Remaining 15 transferred to USAAF where 
                           they were used as advanced fighter trainers. 

McDonnell XP-67 Bat	   Twin-engine, long-range fighter.  Two Continental
			   XI-1430 engines.  Low power of engines caused
		           performance to be disappointing.  Sole prototype
			   destroyed by fire.  Project cancelled.

Vultee XP-68 Tornado       Designation given to proposal to re-engine the
                           XP-54 with Wright R-2160 Tornado powerplant.
                           Project abandoned when Tornado engine was cancelled.

Republic XP-69		   Proposal for long-range escort fighter based on
			   Wright 42-cylinder (!!!) R-2160 engine.  Engine was
			   mounted in fuselage behind pilot (a la P-39    
			   Airacobra) driving a pair of contrarotating props 
			   via a long extension shaft.  Envisaged as replacement
			   for P-47.  Cancelled in favor of P-72 before 
			   construction could begin.

Douglas P-70		   Night-fighter conversion of A-20 attack bomber as
			   stopgap measure until P-61 Black Widow was available.
			   British radar mounted in nose. Various different
		           armament schemes used.  200 produced.  Most used
			   as trainers.

Curtiss XP-71		   Large, heavy two-seat long-range escort fighter.
			   Two enormous 3450 hp Pratt and Whitney R-4360 
		           radials driving contrarotating props in a pusher
			   configuration.  Two 37-mm and one 75 mm (!!!) cannon.
			   Never got off the drawing board.
		         
Republic XP-72		   Modification of P-47 to take the Pratt & Whitney
			   R-4360 3450 hp radial engine.  Achieved 490 mph
			   in tests.  Further development abandoned in favor
			   of jet-powered aircraft.  Two built.  
			   
P-73			   For some obscure reason, the designation P-73 was
			   never assigned to any aircraft. 
 
P-74			   For some obscure reason, the designation P-74 was
			   never assigned to any aircraft. 

			   [ Note:  The historian James Fahey claims that the
                            designations P-74 and P-75 were deliberately skipped
                            in order to give the Fisher Eagle a "good symbolic
                            number" ]

Fisher P-75 Eagle	   Long-range escort fighter powered by 2600 hp Allison
			   V-3420 engine mounted in mid-fuselage (a la P-39)
  			   driving contrarotating props.  Generally
		           disappointing performance.  Project was abandoned
			   when it was found that P-51 and P-47 with underwing
			   tanks were perfectly capable of fulfilling the bomber
			   escort role.  Only 13 built.
	
Bell XP-76                 Originally XP-39E, which was a conversion of P-39 to
                           laminar flow wings with square-cut tips.  Ordered 
                           into production as P-76, but later cancelled.
  
Bell XP-77		   Ultra-light fighter constructed of non-strategic
			   materials.  Disappointing performance.  Shortage
                           of aluminum did not materialize, and project was
                           cancelled.  Only two built.

North American XP-78       Conversion of basic P-51 airframe to use Packard
			   Merlin V-1650 engine.  Later redesignated XP-51B.
                           This change was to turn the Mustang from a relatively
                           mediocre fighter into an outstanding success. 

Northrop XP-79B Flying     Jet-powered, flying wing fighter aircraft.  Two
		 Ram       Westinghouse 19B jets.  Pilot lay prone in a
			   cockpit between the two engines.  Reinforced leading
			   edge to make it possible to destroy enemy aircraft
	 		   by slicing off their wings or fuselages by ramming
                           them!!!  Also carried 4 0.50 cal machine guns.
			   Lots of stability and control problems.  The sole
                           prototype crashed and the project was canceled.

Lockheed P-80/F-80         First fully-operational USAAF jet fighter.  Too late
       Shooting Star       for service in World War 2.  Saw action in Korea.
			   Served as basis for T-33 jet trainer.

Convair XP-81              Long-range escort fighter powered by combination
                           jet/turboprop engines.  Turboprop engine did not
                           perform as expected.  Project was cancelled after 
                           only two were built.

North American P-82/F-82   Two P-51H fuselages joined by a central rectangular
	Twin Mustang       wing section and a tailplane.  Six 0.50-cal machine
			   guns in wing center section.  Two cockpits with
	                   dual controls.  270 built.  Service in Korea as
			   escort fighter and ground attack aircraft.  Scored
			   first "kill" of Korean War.  Night fighter variant
			   with enormous radr pod under center wing also
			   produced.

Bell XP-83                 Long-range jet fighter powered by two General
			   Electric J-33 engines.  Disappointing performance
                           caused cancellation of project.  Only 2 built.

Republic P-84/F-84	   Single-seat, jet-powered fighter-bomber.  Versions
	Thunderjet/        B, C, D, E, and G Thunderjets were straight-winged  
	  Thunderstreak/   aircraft powered by Allison J-35 engine. 
	    Thunderflash   Thunderjet had extensive combat experience in Korea.
			   F-84F Thunderstreak version had swept wing and more 
                           powerful Wright J-65 engine.  2474 built.
			   Equipped many NATO air forces.
                           RF-84F Thunderstreak was recon version with wing
                           root intakes replacing nose intakes.

McDonnell XF-85 Goblin	   Single seat, swept-wing jet fighter designed to be
		           carried as parasite inside belly of B-36 bomber.
			   Difficulties during tests in re-hooking to mother
			   craft caused project to be cancelled.  Only two 
			   built.

North American P-86/F-86   The famous "MiG-killer" of the Korean War.  First
	    Sabre          swept-wing US jet fighter.  Fighter-bomber and
			   interceptor versions also produced.  Served with
			   just about every non-Communist air force.

Curtiss XP-87 Blackhawk    Four-engined, jet-powered, all-weather interceptor.
			   Lost out to Northrop F-89 Scorpion.  Only one built.
			   This was the last airplane to be built by Curtiss. 

McDonnell XF-88 Voodoo     Twin-engine, long-range escort fighter.  Two
			   Westinghouse J-34 jets.  6 20-mm cannon.  
			   Disappointing performance caused project to be
			   cancelled after only two were built.

Northrop F-89 Scorpion     Twin engine, two-seat all-weather fighter.  High-
			   mounted tail gave the aircraft its name.  A, B, and
                           C versions had 6 20-mm cannon, D and H versions
                           had exclusively missile armament.  1050 built.

Lockheed XF-90		   Twin-engine long-range penetration fighter.  
			   Disappointing performance.  Lost out in competition
			   with McDonnell F-88 Voodoo.  Only two built.

Republic XF-91             Single-seat, swept-wing interceptor powered by 
	Thunderceptor      General Electric J-47 jet engine and four rocket
			   engines.  Wings pivoted at the root and had 
			   "inverse taper" (wider at the tips than at the 
                           roots).  First American combat plane to go 
                           supersonic in level flight.  Not placed in series
                           production due to high cost and high sophistication.
                           Only two built.

Convair XF-92A             Single-seat delta-wing experimental fighter.  Acted
                           as proof-of-concept for F-102.  Only one built.

North American YF-93A      Long-range swept-wing jet penetration fighter/
			   interceptor.  Cancelled in favor of F-86D.
			   Only two built.

Lockheed F-94 Starfire     Adaptation of Lockheed T-33 to fulfill requirement
			   for all-weather fighter.  Saw action in Korea.  Total
			   of 853 built.

North American YF-95A      All-weather version of Sabre with afterburning 
			   engine.  Later redesignated F-86D.

Republic XF-96             Version of F-84 Thunderjet with swept-back wings.
                           Later redesignated F-84F.

Lockheed YF-97A		   Proposal for revised Starfire with J-48 engine and
			   all-rocket armament.  Later redesignated F-94C.

Hughes F-98 Falcon         Initial designation of Hughes Falcon air-to-air
                           missile.  Later redesignated GAR-98.

Boeing F-99 Bomarc         Initial designation of Bomarc surface-to-air 
                           missile.  Later redesignated IM-99.

North American F-100       Swept-wing, single-seat fighter-bomber.  World's
	Super Sabre        first fighter capable of supersonic speed in level
			   flight.  Fighter-bomber versions (C and D) also 
			   built.  F model was two-seater.   Saw action in
 			   Vietnam.  Total of 2292 built.  Many transferred
			   to air forces of NATO members.

McDonnell F-101 Voodoo     Updated F-88 with P & W J-57 engines with after- 
                           burner.  A and C versions were single-seat fighter-
                           bombers.  B version was two-seat all-weather
                           interceptor.  RF-101A/C was unarmed photorecon
                           version.

Convair F-102 Delta        Single-seat, delta-winged all-weather interceptor. 
               Dagger      All-missile armament.  875 of single-seat version
                           built.   111 two-seat versions (TF-102A) built.
                           One P & W J-57 jet engine with afterburner.
                           825 mph @ 36000 ft.
 
Republic XF-103            Ultra-futuristic plan for a interceptor/fighter
		           capable of reaching Mach 4 speeds.  Powered by
                           combined turbojet/ramjet engine.  Very small
			   delta wing mounted at mid fuselage.  Chin
                           intake under the fuselage.  Pilot's cockpit was
                           recessed entirely into the fuselage.  Aircraft
                           was constructed entirely of titanium and stainless
                           steel.  High cost of project, coupled with success
                           of F-102, caused cancellation before any prototypes
                           could be completed.

Lockheed F-104  	   Single-seat Mach 2 fighter.  One General Electric
       Starfighter         J-79 with afterburner.  First produced as high-
                           performance day-fighter.  Only served in limited
                           numbers for brief time with USAF.  Outstanding
                           success in export market when converted into 
                           all-weather multirole attack fighter.  Difficult
                           plane to fly; lots of accidents.  1328 mph at 
                           35000 ft
                           
Republic F-105             Mach-2 tactical fighter bomber -- The famous "Thud"
	Thunderchief       of Vietnam.  824 built.

Convair F-106 Delta Dart   Enhanced version of F-102 with P & W J-75 engine and
                           revised vertical tail.  All-missile armament.  277 
                           single-seat (A) versions built.  63 two-seat (B)
                           versions built.  1525 mph @ 40000 ft. 

North American YF-107A     All-weather interceptor development of F-100
			   Super Sabre.  Area-ruled fuselage.  Top-mounted
			   intake to make room for radar in nose.  Lost out
			   to Republic F-105 in tactical fighter competition.

North American F-108       Long-range Mach 3 interceptor to act as escort for
	Rapier		   B-70 Valkyrie bomber.  Large, delta-winged aircraft
			   powered by two General Electric J-93 engines.
			   Canceled due to high cost and advent of long-range
			   missiles.  Never got past the mock-up stage.

Bell XF-109		   Mach 2 Vertical take off fighter.  Two engines
                           in rear, two engines in a swiveling pod on each 
                           wingtip, and two engines oriented vertically behind
                           the cockpit.  Only a mockup was built.

McDonnell F-110 Spectre    Air Force version of Navy F4H Phantom.  Later
                           redesignated F-4.

General Dynamics F-111     Two-seat swing-wing fighter bomber
			   Two Pratt & Whitney TF-30 turbofans. FB-111 was
                           strategic bomber version.  Total of 563 built.

     [Note:  The series seems to end here.  But see commentary at end
             of article ]

Now for the Navy's designation scheme for its fighters.  From the start,
the US Navy had an entirely different designation scheme for its combat
aircraft.  In 1923, the Navy decided to designate its aircraft in the 
following manner:

   (prefix)(function)(succession num)(mfg code) - (variant number)(suffix)

The function was designated by a letter or letters (F for fighter, TB for
torpedo bomber, etc).  The prefix designated special features or role (such 
as X for experimental) and was not always used.  The succession number 
indicated the chronological order in which the particular aircraft of the
given type had been ordered from the manufacturer designated by the
manufacturer code (C for Curtiss, B for Boeing, V for Lockheed, etc).  
For example, the F4U-5N Corsair was the fourth basic fighter type to be ordered
by the Navy from the Chance Vought Aircraft Corporation.  The "5" designates
the fifth modification of the basic Corsair aircraft to enter service.
The N suffix designates a special modification for night-fighting applications.

The Navy designation scheme remained essentially unchanged until 1962.  In
that year, Secretary of Defense McNamara reportedly got hopelessly confused 
when his subordinates attempted to explain the Air Force and Navy combat
aircraft designation schemes to him.  He was shocked to find that the Air 
Force and Navy had different designations for basically the same aircraft (e. g.
the FJ Fury and the F-86 Sabre).  McNamara ordered that the Air Force and
Navy adopt the same designation scheme for their aircraft.  Henceforth,
the Navy was to abandon its separate designation scheme and both services 
were to adhere to a new unified designation system which was virtually 
identical in form to the Air Force scheme already in effect.  However, some new
category letters had to be provided to include aircraft types which the
Air Force did not have (e. g. P for Patrol).  By 1962, Air Force 
chronological numbers for bombers had reached 70, and chronological numbers
for both fighters and transport aircraft had exceeded a hundred, and it was
decided to start the chronological numbering scheme over again from one for all
aircraft categories.  The designations of Air Force aircraft in service in 1962
were unchanged, but all Navy aircraft were redesignated.  For example,
the Lockheed P2V Neptune became the P-2, the Vought F8U Crusader became
the F-8, etc.  Once all the Navy aircraft had been assigned new numbers, the
succeeding chronological numbers were assigned to new Air Force and Navy
aircraft as they were ordered into service.

Here is the new unified fighter designation scheme:

North American F-1 Fury   Formerly FJ Fury, the navalized version of F-86 
                          Sabre.

McDonnell F-2 Banshee     Formerly F2H Banshee, Korean War-vintage two-engine
                          carrier-based strike fighter.

McDonnell F-3 Demon       Formerly F3H Demon, a late 1950's single-engine
                          carrier-based strike fighter. 

McDonnell F-4 Phantom II  The famous Phantom.  Formerly F4H Phantom.
                          Most successful fighter since the F-86 Sabre.
                          Two General-Electric J-79 jets with afterburner.
                          1430 mph at 36,000 ft.  Over 5000 built in both
                          carrier-based and land-based versions.

Northrop F-5 Freedom      Fighter adaptation of twin-engine T-38 Talon
       Fighter            supersonic jet trainer.  Primarily used for
                          export.

Douglas F-6 Skyray        Formerly F4D Skyray, single-engine carrier-based
                          interceptor fighter.

Convair F-7 Sea-Dart      Formerly XF2Y Sea Dart, an experimental twin-engine
                          delta-winged fighter that landed on water skis.
                          [ Note:  This one is sort of a mystery.  The Sea
                            Dart was cancelled in 1957.  Why bother to give
                            it a new designation in 1962? ]

Vought F-8 Crusader       Formerly F8U Crusader, single engine, carrier-based
                          day fighter/interceptor.  "When you're out of     
                          Crusaders, you're out of fighters!"

Grumman F-9 Cougar        Formerly F9F Cougar, single-engine carrier-based
                          fighter.

Douglas F-10 Skyknight    Formerly F3D Skyknight, twin-engine, carrier-based
                          night-fighter of Korean War vintage.

Grumman F-11 Tiger        Formerly F11F Tiger, single-engine, carrier-based
                          day fighter.

Lockheed YF-12A		  Conversion of "A-12" spyplane to interceptor
      Blackbird           configuration as possible replacement for F-106.
                          2 P & W J-58 turbojets of 32,500 lb. st. each. Only
                          four built.  Max. speed. 2250 mph at altitude.
                          Deemed too expensive for mass production.  Served
                          as inspiration for SR-71. 

F-13                      Not assigned (I suspect for superstitious reasons).
			  Hey, would YOU want to fly on an airplane named F-13?

Grumman F-14 Tomcat       Twin-engine, two-seat variable geometry carrier-
                          based interceptor.

McDonnell-Douglas F-15    Twin-engine all-weather interceptor/fighter.
      Eagle               Two P & W F100 turbofans.  Mach 2.5 plus.

McDonnell-Douglas F-18    Twin-engine carrier-based strike fighter.     
      Hornet

F-19                      ?????????????????????????????

Northrop F-20 Tigershark  Single-engine lightweight multirole designed for
                          export.  Project terminated in 1986 due to lack
                          of customers.

Israel Aircraft           Several Israel Aircraft Industries Kfir C-2 (Israel-
       Industries F-21    built modification of French Mirage with J-79 engine) 
                          used briefly as aggressor aircraft by Navy "Top Gun"
                          training units.

Lockheed/Boeing/General   Advanced tactical fighter prototype.
    Dynamics YF-22A

Northrop YF-23A           Advanced tactical fighter prototype.  


Now back to the F-19/F-117 controversy.  The F-117 designation for the
Stealth seems inconsistent.  The "old" Air Force designation scheme was
started over from one back in 1962, at which time the fighter numbers had
reached F-111.  If F-117 is REALLY consistent with this scheme, this would
imply that the Stealth fighter had been ordered into service prior to 1962,
which seems quite improbable.  If one accepts even this as plausible,
one now has to ask the question: What about the "missing" numbers between
F-111 and F-117 in the sequence?  What then were F-112, F-113, F-114, F-115,
and F-116?  There has been some suggestion that these are designations for
Soviet-built aircraft that were "acquired" by the Americans and taken out
West to be test flown and evaluated in the Nevada ranges.  They might, for
example, be American designations for MiG-21, MiG-23, MiG-25, Su-7, etc.
We can only speculate until someone in the know is willing to talk.

Finally, does F-19 stand for some supersecret project that is so "black"
that we won't hear anything about it for at least a decade?  Could it be
the "Aurora" that is rumored to be under test out in the desert as a
possible replacement for the SR-71?  Or else, perhaps the F-19 really is
a "hole" in the designation scheme, and all of this confusion and 
inconsistency in aircraft designation schemes is deliberately designed
to confuse Soviet intelligence about what we are up to.  It has certainly
succeeded in confusing ME!!!


Sources: The American Fighter, Enzo Angelucci and Peter Bowers
          American Combat Planes, Ray Wagner
          Warplanes of the Second World War, William Green



Joe Baugher				**************************************
AT&T Bell Laboratories			*  "May as well be frank, monsieur.  *
200 Park Plaza				*  It would take a miracle to get    *
Naperville, Illinois 60566-7050		*  you out of Casablanca."           *
(708) 713 4548				**************************************
ihlpm!jfb
jfb200@cbnewsd.att.com
				    Who, me?  Speak for AT&T?  Surely you jest!	

dps@otter.hpl.hp.com (Duncan Smith) (08/01/90)

From: dps@otter.hpl.hp.com (Duncan Smith)

Wow! You're one dedicated netter... Thanks for the info (On the recent stuff,
anyway.)

As far as the  'unlucky thirteenth' is concerned, there are as far as I am aware
no C-13 or T-13 either. 

Speaking of C- types, could someone (Mentioning no names!) post some info on
the new (ie post '62) cargo/transport sequence? The recent designations have
come thick and fast and I've lost track.

Duncan

lang@hpfccrl.fc.hp.com (John Lang) (08/02/90)

From: John Lang <lang@hpfccrl.fc.hp.com>
In-Reply-To: article <1990Jul30.015849.8835@cbnews.att.com> of Mon, 30 Jul 1990 01:58:49 GMT

/ hpfcso:sci.military / military@cbnews.HP.COM /  7:58 pm  Jul 29, 1990 /

From: ihlpm!jfb (Joseph F Baugher +1 708 713 4548)

> McDonnell-Douglas F-15    Twin-engine all-weather interceptor/fighter.
>       Eagle               Two P & W F100 turbofans.  Mach 2.5 plus.

> McDonnell-Douglas F-18    Twin-engine carrier-based strike fighter.     
>       Hornet

I was surprised to see that the F-16 and YF-17 are missing.  Really a small
nit for such a large post.

John Lang

jfb@ihlpm.att.com (Joseph F Baugher) (08/05/90)

From: jfb@ihlpm.att.com (Joseph F Baugher)
In article <1990Aug2.042336.3171@cbnews.att.com>, John Lang <lang@hpfccrl.fc.hp.com> writes:
> 
> 
> From: John Lang <lang@hpfccrl.fc.hp.com>
> In-Reply-To: article <1990Jul30.015849.8835@cbnews.att.com> of Mon, 30 Jul 1990 01:58:49 GMT
> 
> / hpfcso:sci.military / military@cbnews.HP.COM /  7:58 pm  Jul 29, 1990 /
> 
> From: ihlpm!jfb (Joseph F Baugher +1 708 713 4548)
> 
> > McDonnell-Douglas F-15    Twin-engine all-weather interceptor/fighter.
> >       Eagle               Two P & W F100 turbofans.  Mach 2.5 plus.
> 
> > McDonnell-Douglas F-18    Twin-engine carrier-based strike fighter.     
> >       Hornet
> 
> I was surprised to see that the F-16 and YF-17 are missing.  Really a small
> nit for such a large post.
> 
> John Lang
> 
Yikes!  How could I have forgotten the F-16 and YF-17?  Guess it must be old
age creeping up.  Here is an entry for these two planes:

 

General Dynamics F-16     Single-seat fighter, fighter-bomber.  One P & W F-100
    Fighting Falcon       turbofan.  1330 mph at 40,000 ft.  In service with 
			  USAF and several other air forces.

Northrop YF-17A           Single-seat all-weather interceptor fighter.  Two
			  Two General Electric YJ-101.  Mach 2.0 at 40,000 ft.
			  Lost out to F-16 for production orders.  Only 2 built.
			  Served as basis for F/A-18 Hornet.




Hope this helps.


Joe Baugher				**************************************
AT&T Bell Laboratories			*  "Round up the usual suspects."    *
200 Park Plaza				**************************************
Naperville, Illinois 60566-7050		
(708) 713 4548				
ihlpm!jfb                           Who, me?  Speak for AT&T?  Surely you jest!	
jfb200@cbnewsd.att.com

fiddler@concertina.Eng.Sun.COM (Steve Hix) (08/07/90)

From: fiddler@concertina.Eng.Sun.COM (Steve Hix)

>From: ihlpm!jfb (Joseph F Baugher +1 708 713 4548)
>F-13  Not assigned (I suspect for superstitious reasons).
>      Hey, would YOU want to fly on an airplane named F-13?

Grumman XF13F "Jaguar".  Swing-wing fighter testbed.  Led to
(apparently) F-14.

(The long list this came from is great.  Especially the ones
that never saw operational service.)

------------
  The only drawback with morning is that it comes 
    at such an inconvenient time of day.
------------

jfb@ihlpm.att.com (Joseph F Baugher) (08/09/90)

From: jfb@ihlpm.att.com (Joseph F Baugher)
In article <1990Aug7.040942.7127@cbnews.att.com>, fiddler@concertina.Eng.Sun.COM (Steve Hix) writes:
> 
> 
> From: fiddler@concertina.Eng.Sun.COM (Steve Hix)
> 
> >From: ihlpm!jfb (Joseph F Baugher +1 708 713 4548)
> >F-13  Not assigned (I suspect for superstitious reasons).
> >      Hey, would YOU want to fly on an airplane named F-13?
> 
> Grumman XF13F "Jaguar".  Swing-wing fighter testbed.  Led to
> (apparently) F-14.
> 
> (The long list this came from is great.  Especially the ones
> that never saw operational service.)
> 
> ------------
>   The only drawback with morning is that it comes 
>     at such an inconvenient time of day.
> ------------
>

Small nit: It's XF10F-1 Jaguar.  This was a fighter prototype which 
was intended to lead to an actual production fighter.  The Jaguar had a
high-mounted variable sweep wing and a high-mounted T-tail.  The aircraft
was powered by the unreliable Westinghouse J-40 turbojet, which was the
Achilles-heel of many a 'fifties era fighter plane.  The sole prototype
built was deemed too unstable and too heavy to warrant a production order.
However, the variable sweep wing worked fairly well and provided lots of
good data which was to be of great value in the F-14 Tomcat project.

Grumman's last fighter plane in the FxF series was the XF12F-1.  It was
a proposal for a twin-engine escort fighter designed to the same requirement
as was the F4H Phantom.  The project never got off the drawing board.

 
Joe Baugher				**************************************
AT&T Bell Laboratories			*  "Round up the usual suspects."    *
200 Park Plaza				**************************************
Naperville, Illinois 60566-7050		
(708) 713 4548				
ihlpm!jfb                           Who, me?  Speak for AT&T?  Surely you jest!	
jfb200@cbnewsd.att.com

wmartin@STL-06SIMA.ARMY.MIL (Will Martin) (08/16/90)

From:     Will Martin <wmartin@STL-06SIMA.ARMY.MIL>
Thank you VERY much for posting such a comprehensive and complete listing!
I have saved it, along with your later addenda, for future reference.
I'm sending printed copies to some friends who will also appreciate the
reference. 

If it is possible, and if it is in your area of interest, it would be
really helpful to see an equivalent list of all the B- series aircraft,
along with the same sort of historical background on the evolution of
the designations. There are many gaps in the series when we think of the
usual ones that come to mind: B-17, -24, -25, -29, -36, -47, -49 (I think
that was the Flying Wing), -52, -57, -58, -70, and now the B-1 & B-2.

Filling in those missing numbers would be most helpful and interesting.

I know your fighter list included quite a few with X<something>
designations, but wasn't there a completely separate and distinct
"X-<number>" series of eXperimental aircraft, including the rocket
planes for sound-barrier research? A list of those would also be
intriging. There was one with a looonnngg needle nose and stubby wings
like an F-104, for example; I keep thinking "X-3" but then think that
referred to a much earlier and less-sleek model. I used to have dozens
of plastic models of these things as a child but all are now gone, so I
am running on memory, which has increasing numbers of faults each
year... :-)

Regards, Will
wmartin@st-louis-emh2.army.mil OR wmartin@stl-06sima.army.mil

jfb@ihlpm.att.com (Joseph F Baugher) (08/19/90)

From: jfb@ihlpm.att.com (Joseph F Baugher)
In article <1990Aug16.030708.16047@cbnews.att.com>,     Will Martin <wmartin@STL-06SIMA.ARMY.MIL> writes:
> 
> 
> From:     Will Martin <wmartin@STL-06SIMA.ARMY.MIL>
> Thank you VERY much for posting such a comprehensive and complete listing!
> I have saved it, along with your later addenda, for future reference.
> I'm sending printed copies to some friends who will also appreciate the
> reference. 

Thanks.  I've recently edited the fighter list to make some corrections and
additions suggested by some readers of the group.  I inadvertently omitted
F-16 and F-17 from the list.

> 
> If it is possible, and if it is in your area of interest, it would be
> really helpful to see an equivalent list of all the B- series aircraft,
> along with the same sort of historical background on the evolution of
> the designations. There are many gaps in the series when we think of the
> usual ones that come to mind: B-17, -24, -25, -29, -36, -47, -49 (I think
> that was the Flying Wing), -52, -57, -58, -70, and now the B-1 & B-2.
> Filling in those missing numbers would be most helpful and interesting.

No sooner said than done.  I'll send a list of bomber designations off to
sci.military under a separate posting.  Hope that you find it interesting.

> I know your fighter list included quite a few with X<something>
> designations, but wasn't there a completely separate and distinct
> "X-<number>" series of eXperimental aircraft, including the rocket
> planes for sound-barrier research? A list of those would also be
> intriging. 
The X designation that appeared in the fighter list was a prefix.  It 
usually designated the first prototype of a fighter.  For example, the
XF-104 was the first prototype of the Starfighter.  In almost all cases,
it was intended that the X-prefixed fighter would eventually enter military
service as an operational aircraft.  However, it often happened that the
aircraft was never ordered by the military, or else was cancelled after only
the prototype was built.  The X-planes such as the Bell X-1, the Douglas X-3,
or the North American X-15 belong to a completely different series.  The X
series of planes include aircraft that are intended from the beginning as
strictly experimental and not explicitly intended for actual service with the
military as an operational aircraft.  Perhaps I will eventually post a listing
of X-planes.  By now, I think that it has reached X-31.

> Regards, Will
> wmartin@st-louis-emh2.army.mil OR wmartin@stl-06sima.army.mil
> 


Joe Baugher				**************************************
AT&T Bell Laboratories			*  "I'm shocked!  Shocked to find    *
200 Park Plaza				*  that gambling is going on here!"  *
Naperville, Illinois 60566-7050		**************************************
(708) 713 4548				
ihlpm!jfb                           Who, me?  Speak for AT&T?  Surely you jest!	
jfb200@cbnewsd.att.com

randy@uokmax.ecn.uoknor.edu (Longshot) (08/19/90)

From: uokmax!randy@uokmax.ecn.uoknor.edu (Longshot)
wmartin@STL-06SIMA.ARMY.MIL (Will Martin) writes:

>From:     Will Martin <wmartin@STL-06SIMA.ARMY.MIL>
 There are many gaps in the series when we think of the
>usual ones that come to mind: B-17, -24, -25, -29, -36, -47, -49 (I think
>that was the Flying Wing), -52, -57, -58, -70, and now the B-1 & B-2.

Don't forget the heavily-modified B-29 listed as B-50.

>Filling in those missing numbers would be most helpful and interesting.

Agreed.

>I know your fighter list included quite a few with X<something>
>designations, but wasn't there a completely separate and distinct
>"X-<number>" series of eXperimental aircraft, including the rocket
>planes for sound-barrier research?

For a while, all planes still in prototype were prefixed by X. The difference
between them and the X-planes is that they also had a second letter, i.e.
"XB-70," the ill-fated Valkyrie.

> There was one with a looonnngg needle nose and stubby wings
>like an F-104, for example; I keep thinking "X-3" but then think that
>referred to a much earlier and less-sleek model.

X-3 Stiletto. Lindberg Models has reissued a kit of it in their "Classical
Replicas" series.

As far as the gaps go, in war time there was a great deal of development that
was discarded due to need for rush. Now, in peacetime, contractors can take the
time to take the design they have and work out all the design flaws.

-- 
Randy J. Ray       University of Oklahoma, Norman Campus	(405)/325-5370
!chinet!uokmax!randy	randy@uokmax.uucp    randy@uokmax.ecn.uoknor.edu
"He's not afraid of the judgement. He knows of horrors worse than your Hell."
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~