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F4U Corsair Revamp SPLS_AV

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F4U- Corsair re-edited with slight weight increase better flight physics and a little more speed (200mph) from my past variant. Based on an excellent Revamp by Cowboy!

Corsair Facts:

The Chance Vought F4U Corsair was an American fighter aircraft that saw service in World War II and the Korean War (and in isolated local conflicts). Goodyear-built Corsairs were designated FG and Brewster-built aircraft F3A. The Corsair served in some air forces until the 1960s, following the longest production run of any piston-engined fighter in U.S. history (1942–1952).[1] [2] Some Japanese pilots regarded it as the most formidable American fighter of World War II.[3] The U.S. Navy counted an 11:1 kill ratio for every F4U shot down.[4

Development

The Corsair started life as the result of a U.S. Navy requirement for a carrier aircraft which could match the performance of the best land and carrier-based fighter planes. Designed in 1938 by Rex Beisel, the first prototype Corsair designated XF4U-1 first flew on 29 May 1940.[5] When flown in 1940, the XF4U-1, powered by a Pratt & Whitney R-2800 Double Wasp radial engine, became the first U.S. single-engine production aircraft capable of 400 mph (640 km/h) in level flight.[6] It was a remarkable achievement for Vought; compared to land-based counterparts, carrier aircraft are "overbuilt" and heavier, to withstand the extreme stress of deck landings.

[edit] Design
The XF4U-1 prototype in 1940/41
The XF4U-1 prototype in 1940/41

The Corsair was designed by Rex Beisel and Igor Sikorsky, and incorporated the largest engine available at the time, the 2,000 hp (1,490 kW) 18-cylinder Pratt & Whitney R-2800 Double Wasp radial. To extract as much power as possible, a relatively large, 13 ft, 4 inch (4.06 m) Hamilton Standard Hydromatic three-blade propeller was used. To accommodate a folding wing, the designers considered retracting the main landing gear rearward, but for the chord of wing selected, it was difficult to fit gear struts long enough to provide sufficient clearance for the large propeller. Their solution was an inverted gull wing, the same layout used as Germany's infamous Stuka dive bomber, considerably shortening the length of the main gear legs[7] The "bend" in the wing also permitted the wing and fuselage to meet at the optimum angle for minimizing drag.[7] Offsetting these benefits, the bent wing was more difficult to construct and would weigh more than a straight one.
2,000 hp (1,500 kW) Pratt & Whitney R-2800-8 in a Goodyear FG-1 Corsair
2,000 hp (1,500 kW) Pratt & Whitney R-2800-8 in a Goodyear FG-1 Corsair

The Corsair's aerodynamics were an advancement over contemporary naval fighters. The F4U was the first U.S. Navy airplane to feature landing gear that retracted fully, exactly in the manner of the Curtiss P-40 in rotating through 90° during retraction with the wheel atop the lower end of the strut, leaving a completely streamlined wing.[8] Air intakes used slots in the leading edges of the wings rather than protruding scoops. Panels were attached with flush rivets, and the design took advantage of the newly-developed technique of spot welding. While employing this new technology, the Corsair was also the last American-produced, combat aircraft to feature fabric covered control surfaces, which was used for the top and bottom of each outer wing in addition to elevators.[citation needed] Despite being capable of speeds in excess of 400 mph (640 km/h), with full 60 degree flap deployment, the Corsair was capable of flying at speeds slow enough for carrier landings.

Despite advances in technology and a top speed greater than existing Navy aircraft, numerous technical problems had to be solved before the Corsair would enter service. Carrier suitability was a major development issue, prompting changes to the main landing gear, tail wheel and tailhook. Early prototypes had difficulty recovering from developed spins since the inverted gull wing's shape interfered with elevator authority. A small spoiler was added to the leading edge of the starboard wing to reduce adverse stall characteristics.[9]
Underside of a Corsair
Underside of a Corsair

The combination of an aft cockpit and the Corsair's long nose made landings hazardous for newly-trained pilots. The cockpit position in the prototype was 36 in (91 cm) further forward, but a desire for more powerful armament necessitated changes. Putting three 50 caliber guns in each outer wing panel eliminated fuel tanks there, and the fuselage tank above the wings was enlarged to compensate.[10] This required the seat to be moved rearward, behind the tank, an arrangement used in other piston fighters of the era, such as the Spitfire. Because the more docile, and simpler to build, F6F Hellcat was coming into service, Corsair deployment aboard U.S. carriers could be delayed. Following Vought modifications to the landing gear, repositioning of the seat, addition of the stall block to the starboard wing, and after a landing technique, using a curving approach, was developed by the British Royal Navy that kept the LSO (landing signal officer) in view while coming aboard, Corsairs entered U.S. carrier service toward the end of 1944.

Specifications

[edit] F4U-1A

Data from Aeroweb[84]

General characteristics

* Crew: 1 pilot
* Length: 33 ft 4 in (10.1 m)
* Wingspan: 41 ft 0 in (12.5 m)
* Height: 16 ft 1 in (4.90 m)
* Wing area: 314 ft² (29.17 m²)
* Empty weight: 8,982 lb (4,073 kg)
* Loaded weight: 14,000 lb (6,300 kg)
* Powerplant: 1× Pratt & Whitney R-2800-8W radial engine, 2,250 hp (1,678 kW)

Performance

* Maximum speed: 425 mph (369 knots, 684 km/h)
* Range: 1,015 mi (882 nm, 1,634 km)
* Service ceiling 36,900 ft (11,200 m)
* Rate of climb: 3,180 ft/min (16.2 m/s)

Armament

* Guns: ** 4× 0.50 in (12.7 mm) M2 Browning machine guns, 400 rounds per gun
o 2× 0.50 in Browning M2 machine guns, 375 rounds per gun
* Rockets: 4× 5 in (12.7 cm) High Velocity Aircraft Rockets and/or
* Bombs: 2,000 lb (910 kg)

[edit] F4U-4

Data from Aeroweb[85]

General characteristics

* Crew: 1 pilot
* Length: 33 ft 8 in (10.2 m)
* Wingspan: 41 ft 0 in (12.5 m)
* Height: 14 ft 9 in (4.50 m)
* Empty weight: 9,205 lb (4,174 kg)
* Loaded weight: 14,669 lb (6,653 kg)
* Powerplant: 1× Pratt & Whitney R-2800-18W radial engine, 2,450 hp (1,827 kW)

Performance

* Maximum speed: 446 mph (388 knots, 718 km/h)
* Range: 1,005 mi (873 nm, 1,618 km)
* Service ceiling 41,500 ft (12,649 m)
* Rate of climb: 3,870 ft/min (19.7 m/s)

Armament

* Guns:
o 6× 0.50 in (12.7 mm) M2 Browning machine guns, 400 rounds per gun or
o 4× 20 mm AN/M2 cannons
* Rockets: 8× 5 in (12.7 cm) High Velocity Aircraft Rockets and/or
* Bombs: 4,000 lb (1820 kg)

Wikipedia

This variant requires:

Vought F4U Corsair_EA

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