Curtiss-Wright XP-55 Ascender

Curtiss-Wright XP-55 Ascender
Riik	USA
Rolli	Fighter
Toodetud	19. juuli 1943
Ehitatud	3

2007 Curtiss-Wright XP-55 tõusja (ettevõtte tähis CW-24) on 1940. aastate Ameerika Ühendriikide hävituslennuki prototüüp, mille ehitas Curtiss-Wright. Koos Vultee XP-54 ja Northrop XP-56-ga tulenes see Ameerika Ühendriikide armee õhukorpuse ettepanekust R-40C, mis anti välja 27. novembril 1939 parema jõudluse, relvastuse ja piloodi nähtavusega lennukite kohta; see lubas konkreetselt ebatraditsioonilisi lennukikonstruktsioone. Oma aja kohta väga ebatavaline disain, sellel oli kanardi konfiguratsioon, taha paigaldatud mootor, pühitud tiivad ja kaks vertikaalset saba. Tõukuri disaini tõttu nimetati seda sarkastiliselt "Ass-enderiks". Nagu XP-54, oli ka Ascender algselt mõeldud Pratt & Whitney X-1800 mootori jaoks ja see tuli ümber kujundada, kui see mootoriprojekt tühistati. See oli ka esimene Curtissi hävituslennuk, mis kasutas kolmerattalist telikut.

Allikas: Curtiss-Wright XP-55 tõusja Vikipeedias

XP-55 Ascender Walk Around
Fotograaf	Michael Benolkin
Lokaliseerimine	Teadmata
Fotod	39

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General Characteristics and Role

The Curtiss XP-55 Ascender (Curtiss-Sperry Model 24) was an experimental fighter prototype developed for the U.S. Army Air Forces (USAAF) during World War II. It was the product of the 1940 “R-40C” proposal for unconventional aircraft designs, alongside the Northrop XP-56 Black Bullet and Vultee XP-54 Swoose Goose. The Ascender featured a highly radical and futuristic design for its time: a tailless canard configuration with the engine mounted at the rear, driving a pusher propeller. This layout was intended to improve aerodynamics and provide an unobstructed forward field of fire. Despite the design’s potential, the XP-55 suffered from stability issues, poor low-speed performance, and did not live up to performance expectations, leading to its cancellation after three prototypes were built.

Property	Typical Value (XP-55)
Rolli	Experimental Fighter Prototype
National Origin	Ameerika Ühendriigid
Tootja	Curtiss-Wright Corporation
First Flight	13 July 1943
Arv on ehitatud	3
Meeskonna	1 (Pilot)
pikkus	9.0 m (29 ft 6 in)
Tiibade siruulatus	12.4 m (40 ft 8 in)
kõrgus	3.45 m (11 ft 4 in)
Empty Weight	2,884 kg (6,358 lb)
Max Takeoff Weight	3,792 kg (8,360 lb)

Powerplant and Design

Engine: One Allison V-1710-95 (F23R) liquid-cooled V12 engine.
Power Output: 954 kW (1,275 hp).
Propulsion: 3-bladed propeller in a pusher configuration (at the rear).
Maximum Speed: 628 km/h (390 mph; 339 kn) at 5,800 m (19,000 ft).
Range: 1,040 km (650 mi; 560 nmi).
Design Layout: Canard (small horizontal surface in the nose) and a mid-set wing with twin tail booms supporting the rudders. The main wings were swept back slightly.
Pilot Safety: Due to the rear-mounted propeller, the pilot was equipped with a system to jettison the propeller assembly before bailing out in an emergency.

Armament (Intended) and Service

Intended Armament: 2 x 20 mm cannon and 2 x .50 in (12.7 mm) machine guns, all mounted in the nose. (Prototypes often flew with reduced or no armament).
Service History: The first prototype crashed due to a stall/spin in a test flight. Despite modifications to the second and third prototypes, they were ultimately outclassed by conventional and early jet fighters.
Legacy: The XP-55’s radical configuration helped advance research into canard aerodynamics, a concept later successfully used in aircraft like the Saab Viggen and Eurofighter Typhoon.

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