Copyright 2010 by Brandon Cope

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Grumman XF5F Skyrocket

The XF5F was a twin-engine, twin-rudder single-seat fighter built for the US Navy and first flew in 1940. The most distinctive feature of the plane was that the nose was behind the leading edge of the wing, giving the aircraft the appearance of a wing flying along that a fuselage had desperately latched on to for a ride. During testing, however, the nose was slightly extended, as well as other small changes. While the plane performed well enough in flight, it was decided that a fresh, more capable design should be undertaken (leading to the F7F Tigercat, which arrived too late for the war). The XF5F had double the climb rate of the F4F Wildcat and was better than the later F6F Hellcat and F4U Corsair. Unfortunately, the Navy wasn't yet ready for a twin-engine carrier=based fighter. The lone XF5F continued to be used for testing until it crashed in late 1944.

The Skyrocket was most famous as the plane used by the Blackhawks (a comic book flying group, first appearing in print in 1941) during most of the 1940's. In an alternate history, it might have been forced into production rather than waiting for the F7F to be developed. It did have some streamlining problems which were never really solved; hence it was slower than expected, but would have still been quite fast for a USN plane in 1942 (50 mph faster than the Wildcat and as fast s the Hellcat). Alternately, the Marines might have flown it, as they often got aircraft the Navy didn't want. As no armament was installed, the weaponry listed is a reasonable speculation.

The XF5F uses 89.5 gallons of aviation fuel per hour at routine usage.

Subassemblies: Medium Fighter chassis +3, Light Fighter-Bomber Wings with folding option +3, 2xLarge Weapon Engine Pods +2, 2x full three retractable wheels +0.
Powertrain: 2x895-kW aerial HP gasoline engines [Pods] with 2x895-kW props and 217-gallon self-sealing fuel tanks [Wings]
Occupancy: 1 CS  Cargo: 16 Body

Armor
All: 2/3
Wheels: 2/3
Cockpit: F +0/30, B +0/30

Weaponry
4xVery Long Aircraft HMG/M-2 [Body:F] (300 each)*
* link fires all four

Equipment
Body: Medium radio receiver and transmitter, navigation instruments, autopilot, arrestor gear, 500-lb hardpoint. Wings: 250-lb hardpoint each.

Statistics
Size: 29'x42'x11' Payload: 0.88 tons Lwt: 5.07 tons
Volume: 100
Maint.: 35 hours Price: $32,900

HT: 7.
HP: 120 [body], 120 [each wing], 120 [each pod], 12 [each wheel]
 
aSpeed: 383
aAccel: 4
aDecel: 17
aMR: 4.25
aSR: 2
Stall: 72

Design Notes
Design aSpeed was 359 mph and Stall 79 mph. The historical speeds have been used, as well as the actual wing area (305 square feet). Loaded weight was reduced 1.5%. Most of the unused body volume is treated as waste space.

Performance numbers do not include a bombload. The fuselage hardpoint can also carry a 58-gallon drop tank.

<>Variants
The XP-50 (1941) was a version built for the Army. The primary difference was that it used tricycle landing gear, requiring the nose to be extended past the propellor hubs. It also used turbo-supercharged engines, which started an engine fire leading to the crash of the lone prototype on it's maiden flight. The XP-50 was not really superior to the P-38 Lightning, which was further along in development, and the program was canceled. The XP-50 was the same as the XF5F in game terms, although the estimated top speed of 425 mph was never reached; given unexpected low speed of the XF5F, it might not have been reached.