Maximální vzletová hmotnost: Maximum Take-off Weight:
3477 kg
7665 lb
Rozpětí: Wingspan:
10.46 m
34ft 3,75in
Délka: Length:
9.19 m
30ft 2in
Výška: Height:
3.96 m
13ft
Plocha křídla: Wing Area:
19.32 m2
208 ft2
Plošné zatížení: Wing Loading:
171,894 kg/m2
35.21 lb/ft2
Pohon: Propulsion:
Kategorie: Category:
pístový
piston
Počet motorů: Number of Engines:
1
Typ: Type:
Allison V-1710-39 (F3R) kapalinou chlazený přeplňovaný vidlicový dvanáctiválec s reduktorem o vzletovém výkonu 857,5 kW při 3 000 ot/min, nominální výkon 857,5 kW v h= 3 566 m a maximální výkon 1111,1 kW v h= 1 311 m. Vrtule třílistá stavitelná s konstantní rychlostí otáčení.
Allison V-1710-39 (F3R) twelvee-cylinder supercharged liquid-cooled 60° "Vee" engine, rated at 1,150 hp for take-off, a nominal power 1,150 hp at 11,700 ft and combat power 1,490 hp at 4,300 ft, driving a three-blade constant-speed propeller.
Objem palivových nádrží: Fuel Tank Capacity:
590 l
156 US gal
Výkony: Performance:
Maximální rychlost: Maximum Speed:
571.3 km/h v 3749 m
355 mph in 12300 ft
Cestovní rychlost: Cruise Speed:
468.3 km/h v 3566 m
291 mph in 11700 ft
Rychlost stoupání: Climb Rate:
? m/s
? ft/min
Čas výstupu na výšku: Time to Climb to:
5,0 min do 4572 m
5,0 min to 15000 ft
Operační dostup: Service Ceiling:
8992 m
29500 ft
Dolet: Range:
523 km
325 mi
Maximální dolet: Maximum Range:
? km
? mi
Výzbroj: Armament:
2x pevný kulomet Colt-Browning ráže 12,7 mm na motorem 8x pevný kulomet Browning ráže 7,7 mm v křídlech
Two fixed forward-firing 0.50 inch Colt-Browning machine-guns in a nose-mounted and eight fixed forward-firing 0.30 inch Colt-Browning machine-guns in the wings-mounted.
Uživatelské státy: User States:
Poznámka: Note:
viz historie
At the time when the Curtiss P-40 fighter was initially entering production, Curtiss's chief designer Donovan Berlin was already thinking about its successor. The P-40 was already largely obsolescent by contemporary. The XP-46 was generally similar to its P-40 predecessor, but was somewhat smaller and featured a wide-track, inwardly-retracting undercarriage. The engine was to be the newly-developed Allison V-1710-39 (F3R) twelve-cylinder liquid-cooled Vee of 1150 hp. This same engine was also later to power the D-version of the P-40. In view of the relatively high wing loading, automatic leading-edge slots (a la Bf 109E). Influenced by contemporary British thinking - armament was to be two 0.50-in machine guns in the nose below the cylinder banks and eight 0.30 inch machine-guns in the wings (a la Hurricane). A month after the initial XP-46 order, the USAAC modified their requirement and called for the provision of self-sealing fuel tanks and armor protection for the pilot. In order to save time and get something in the air as quickly as possible, the second prototype (40-3054) was delivered without armament or radio. This aircraft was redesignated XP-46A. The XP-46A was actually the first to fly, taking to the air on February 15, 1941.
Zdroje: Sources:
Peter M. Bowers, Curtiss Aircraft, 1907-1947, London, Putnam & Company Ltd., 1979. ISBN 0-370-10029-8 Zbigniew Kolacha a Marek Ryś, Monografie Lotnicze 65, Curtiss P-40 cz.2, AJ-Press 2000, Gdaňsk 5, ISBN 83-7237-040-0 Lou Drendel, Walk Around No.8, P-40 Warhawk, Squadron/signal publications, ISBN 0-89747-361-2 Ray Wagner, The Curtiss P-40 Tomahawk, No. 35, Profile Publications Ltd., Leatherhead, Surrey, England, No ISBN Ray Wagner, Profile 136, The Curtiss P-40 Kyttyhawk I-IV, Profile Publications Ltd., Windsor, England, No ISBN http://joebaugher.com/usaf_fighters/p46.html http://www.airwar.ru/enc/fww2/p46.html archiv autora
URL : https://www.valka.cz/Curtiss-XP-46-t43574#172454
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History: The war in Europe affected American fighter designers by trying to make the most of the new experience of this battlefield. One of the aircraft on which these efforts were reflected was the Curtiss XP-46. According to the ideas of the chief designer Donovan Berlin, the new aircraft was to replace on the production lines P-40 Tomahawk, which at the time of introduction was outdated compared to European machines. The new aircraft was smaller with a chassis with a wider gauge, in the leading edges of the wings had automatic slots in the manner of the German Bf 109 and main armament again influenced Hawker Hurricane, so eight were added to the traditional two large-caliber machine guns 7.62 mm machine guns. On September 29, 1939, a contract was signed for two machines, resulting in one armed XP-46 and one unarmed XP-46A. One month after the completion of the XP-46, the Army Air Force requested the retrofitting of the aircraft with armored pilot protection and installation of efficient self-locking fuel tanks. The second prototype was built in a hurry and thus remained unarmed, without radio and other military equipment. Due to the rush, the second prototype, designated the XP-46A, took off before the first prototype. However, the weight of the aircraft increased so that the aircraft lost dexterity and maneuverability, the performance also did not reach the expected values and so the decision was made to continue with a new version P-40D, mainly so as not to slow down the production of P-40. Soon after, the production of a successful version P-40E, which was XP-46 superior. The Army Air Force therefore ended the matter with this type. The second prototype was left without weapons.
URL : https://www.valka.cz/Curtiss-XP-46-t43574#172466
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URL : https://www.valka.cz/Curtiss-XP-46-t43574#172478
Version : 0
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