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Curtiss XP-10

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Prototype biplane fighter

XP-10
The sole Curtiss XP-10 (s/n 28-387)
General information
Type	Biplane fighter
Manufacturer	Curtiss Aeroplane and Motor Company
Status	Cancelled
Primary user	United States Army Air Corps
Number built	One
History
Retired	1928

TheCurtiss XP-10 was an Americanexperimental biplane fighter developed byCurtiss and tested by theUnited States Army Air Corps, but rejected due to disappointing performance and major problems with the cooling system.

Design and development

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Ordered on 18 June 1928, it was intended to be fast and maneuverable enough to win adogfight. The XP-10 used agull wing top wing, joined at the fuselage; this offered much better pilot visibility than the traditional biplane configuration. This also permitted the wing and fuselage to meet at the optimum angle for minimizingdrag.^[1] The wings wereplywood-covered (rather thandoped fabric, as used inWorld War I), and the fuselage was fabric-covered steel tubing.

The XP-10 used a 600 hp (447 kW)Curtiss V-1570-15 Conquerorwater-cooled V12 engine. To overcome the drag of a radiator (a quite serious issue before the introduction ofethylene glycol), Curtiss incorporated it into the upper wing. It was formed of corrugated brass sheets through which cooling water was run. While ingenious, this introduced technical and mechanical problems, especially vulnerability to enemy fire in a combat aircraft.

Operational history

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Delivered to theArmy Air Corps in August 1928, the XP-10 first flew in September.^[2] Despite excellent manoeuvrability, with the XP-10 proving superior to theCurtiss Hawk in testing,^[2] persistent problems with cooling and the plumbing of the surface radiator led to the XP-10 being abandoned.

Operators

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United States

United States Army Air Corps

Specifications (XP-10)

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Data from Curtiss Aircraft 1907–1947,^[3] U.S.Fighters^[2]

General characteristics

Crew: 1
Length: 23 ft 3 in (7.09 m)
Wingspan: 33 ft (10 m)
Height: 8 ft 8 in (2.64 m)
Wing area: 270 sq ft (25 m²)
Empty weight: 3,040 lb (1,379 kg)
Gross weight: 3,975 lb (1,803 kg)
Powerplant: 1 ×Curtiss V-1570-15 Conqueror V-12 water-cooled piston engine, 600 hp (450 kW)
Propellers: 2-bladed fixed-pitch propeller

Performance

Maximum speed: 191 mph (307 km/h, 166 kn) at sea level

215 mph (187 kn; 346 km/h)

Range: 461 mi (742 km, 401 nmi)
Service ceiling: 26,500 ft (8,100 m)
Rate of climb: 1,940 ft/min (9.9 m/s)

Armament

Guns: none installed (one 0.300 in (7.62 mm) and one 0.500 in (12.70 mm)machine guns planned

References

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Wikimedia Commons has media related toCurtiss XP-10.

^Green 1973, p. 188.
^^a ^b ^cDorr and Bishop 1990, p. 41.
^Bowers, Peter M. (1979).Curtiss aircraft, 1907-1947. London: Putnam. p. 221.ISBN 0370100298.

Bibliography

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Dorr, Robert F. and David Donald.Fighters of the United States Air Force. London: Temple, 1990.ISBN 0-600-55094-X.
Green, William.War Planes of the Second World War, Fighters. Volume Four. Garden City, NY: Doubleday & Company, 1973.
Jones, Lloyd S.U.S. Fighters: 1925-1980s. Fallbrook, California: Aero Publishers, Inc., 1975.ISBN 0-8168-9200-8.

Curtiss andCurtiss-Wright aircraft

Manufacturer
designations

Early types	Golden Flier Reims Racer Beachey Special
Model letters	C D E F FL GS H HA HS J JN -5 -6H K L MF N NC O R S T
Model numbers	1 B F 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 (I) 18 (II) 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 K/P 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 A B 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 I P S 76 A 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
"L" series	L-17 L-18 L-19 L-22 L-41 L-44 L-72 L-79 L-85 L-115 L-117 L-710
"CA" series	CA-1
"CR" series	CR-1 CR-2
"CW" series	CW-1 CW-2 CW-3 CW-4 CW-5 CW-6 CW-8 CW-9 CW-10 CW-11 CW-12 CW-14 CW-15 CW-16 CW-17 CW-18² CW-19 CW-20 CW-21 CW-22 CW-23 CW-24 CW-25 CW-26 CW-27 CW-28 CW-29 CW-32 CW-33 CW-40
"P" series	P-200 P-202 P-212 P-218 P-219 P-222 P-223 P-224 P-225 P-227 P-228 P-229 P-232 P-235 P-238 P-239 P-240 P-241 P-243 P-244 P-245 P-247 P-248 P-249 P-250 P-251 P-252 P-253 P-254 P-255 P-256 P-257 P-259 P-261 P-264 P-268 P-269 P-272 P-273 P-274 P-275 P-276 P-277 P-278 P-279 P-280 P-282 P-283 P-291 P-292 P-293 P-295 P-296 P-297 P-298 P-299 P-302 P-303 P-304 P-305 P-306 P-307 P-509 P-517 P-518 P-538 P-539 P-541 P-545 P-551 P-558 P-565 P-586 P-588 P-592
"X" series	X-100 X-200 X-300 X-410 X-425

Operator and role

Civil

Experimental	No. 1 Model C SX-5-1 Tanager
Racers and record	No. 2 Cox Racer CW-B-14R
Airliners	Eagle Condor 18 Condor II Kingbird Thrush Commando
Utility	Model D Model E Model F Carrier Pigeon Falcon Robin Lark 6B CW-12 CW-14 Sportsman CW-15 Sedan CW-16 CW-19W

Army

Ground attack	A-3 A-4 A-5 A-6 A-8 YA-10 A-12 YA-14 A-18 A-25 A-40 XA-43
Bombers	NBS-1 B-2 XNBS-4
Transports	XC-10 C-30 Condor C-46 Commando C-55 Commando C-76 C-113 Commando
Fighters	S 18 PN-1 PW-8 P-1 to P-5 P-6 XP-10 P-11 P-14² P-17 XP-18² XP-19² YP-20 XP-21 XP-22 XP-23 XP-31 P-36 YP-37 P-40 XP-42 XP-46 XP-53 XP-55 YP-60 XP-62 XP-71 XP-87
Observation	O-1 O-11 O-12 O-13 O-16 O-18 O-24² O-26 XO-30² O-39 O-40 O-52
Racers	R-6 R-8
Trainers	J L JN Fledgling AT-4 Hawk AT-5 Hawk BT-4 AT-9 Jeep
Experimental	X-19
Licensed	USAO-1 NBS-1/Model 30

Navy

Bombers	CT BFC BF2C SBC SB2C XSB3C² XBTC XBT2C
Fighters	HA GS TS-1 FC F2C F3C F4C F5C¹ F6C F7C F8C F9C F10C F11C XF12C F13C XF14C XF15C
Observation/scout	CS/SC S2C XS3C S4C SC OC O2C O3C SOC SO2C SO3C
Trainers	N-9 N2C SNC
Transports	RC R4C R5C
Maritime patrol	H-16 F5L HS-1L & HS-2L
Racers and record	NC CR R2C R3C

Export

Bombers	Canada CW-14 Osprey
Maritime patrol	H-2, H-4, H-8 and H-16 F5L HS-2L
Fighters	CW-17 Pursuit Osprey² CW-21 Demon
Trainers	Canuck CW-14 Osprey CW-16 CW-18² CW-22

¹ Designation skipped ² Not built

USAAS/USAAC/USAAF/USAF fighter designations 1924–1962, andTri-Service post-1962 systems

1924 sequences
(1924–1962)

Pursuit (1924–1948)	P-1 P-2 P-3 P-4³ Curtiss P-4 Boeing P-4 P-5 P-6 P-7 P-8 P-9 P-10 P-11 P-12 P-13 P-14 P-15 P-16 P-17 P-18 P-19 P-20 P-21 P-22 P-23 P-24 P-25 P-26 P-27 P-28 P-29 P-30 P-31 P-32 P-33 P-34 P-35 P-36 P-37 P-38 P-39 P-39E P-40 P-41 P-42 P-43 P-44 P-45 P-46 P-47 P-48 P-49 P-50 P-51 P-52 P-53 P-54 P-55 P-56 P-57 P-58 P-59³ XP-59 P-59 P-60 P-61 P-62 P-63 P-64 P-65 P-66 P-67 P-68 P-69 P-70 P-71 P-72 P-73² P-74¹ P-75 P-76 P-77 P-78 P-79 P-80 P-81 P-82 P-83 P-84 P-85 P-86 P-87 P-88 P-89 P-90 P-91 P-92
Fighter (1948–1962)	F-38 F-39 F-40 F-47 F-51 F-59 F-61 RF-61C F-63 F-80 F-81 F-82 F-83 F-84 F-84F/J F-84H F-85 F-86 F-86C F-86D/G/K/L F-87 F-88 F-89 F-90 F-91 F-92 F-93 F-94 F-95 F-96 F-97 F-98 F-99 F-100 F-100B F-101 F-102 F-102B F-103 F-104 XF-104 F-104S NF-104A F-105 F-106³ XF-106 F-106 F-107 F-108 F-109² F-110 F-111 F-111B F-111C F-111K AFTI/F-111A EF-111A
Pursuit, biplace	PB-1 PB-2 PB-3
Fighter, multiplace	FM-1 FM-2
Non-sequential	F-24 P-322 P-400

Tri-service sequence
(1962–present)

Main sequence	F-1 F-1C/D F-1E/F F-2 F-3 F-4 F-4J(UK)/K/M F-5 F-5G F-6 F-7 F-8 F-8E(FN) F-9 F-9F–J F-10 F-11 F-12 F-12C² F-13¹ F-14 F-15 F-15E F-15EX F-15J F-15 STOL/MTD F-16 F-16XL NF-16D F-17 F/A-18 F/A-18E/F EA-18G F-19¹ F-20 F-21 F-22 YF-22 FB-22 F-23
Non-sequential	F-35 F-47 F-117

Covert designations

Related designations

¹ Not assigned • ² Unofficial • ³ Assigned to multiple types
See also: "F-19" • X-32 • X-35 • 1919–1924 sequence

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