Draft:Grumman XP-65

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Draft:Grumman XP-65
  • Comment: The inclusion of the phrase "Here is the corrected template filled with the XP-50 data you previously provided:" suggests to me this was written by AI. Two pieces of toast (talk) 10:24, 11 March 2026 (UTC)
XP-65
General information
Type
ManufacturerGrumman Aircraft Engineering Corporation
StatusCancelled
Number built0
History
Developed fromXP-50

The Grumman XP-65 was a twin engine figther that was developed alongside the Navy's F7F Tigercat, but that was cancelled early in 1942 before it could reach the prototype stage.

Development

With the loss of the XP-50 on 14 May 1941, the Army Air Corps transferred funding to the XP-65 project, that was originally named G-51.[1] It would have been an advanced version of the XP-50, using the more powerful Pratt & Whitney R-2800 Double Wasp air cooled eighteen cylinder radial engine.[2] It was to have thick mid mounted wings with a straight leading edge. The engines were to be carried in nacelles partly under the wings. The fuselage was to be narrow but tall with a oval cross section, with the cockpit just in front of the leading edge of the wing. It was to use tricycle landing gear.[3] Initially the hope was that the basic G-51 design could be used by the USAAC and the US Navy, needing only one production line. But it wasn't possible, so the main difference between the two versions was that the Army version would use turbo-superchargers. The Navy version would remove the superchargers, but would need arrestor hooks, folding wings. The Navy's version of the G-51 moved on to become the XF7F-1.[4]

Here is the corrected template filled with the XP-50 data you previously provided:

Specifications (XP-65, estimated)

General characteristics

  • Crew: One
  • Length: 46 ft 5 in (14.15 m)
  • Wingspan: 52 ft 6 in (16.00 m)
  • Height: 15 ft 2 in (4.62 m)
  • Empty weight: 15,943 lb (7,231 kg)
  • Gross weight: 21,425 lb (9,718 kg)
  • Max takeoff weight: 21,425 lb (9,718 kg)
  • Powerplant: 2 × Pratt & Whitney R-2800-22W Double Wasp 18-cylinder air-cooled radial engines, 1,700 hp (1,268 kW) each

Performance

  • Maximum speed: 429 mph (690 km/h, 373 kn) at 19,200 ft
  • Range: 825 mi (1,327 km, 717 nmi)
  • Service ceiling: 40,700 ft (12,405 m)
  • Rate of climb: 4,530 ft/min (23 m/s)
  • Power/mass: 0.16 hp/lb

Armament

  • 4 × 20 mm cannons
  • 4 × 0.50 in (12.7 mm) machine guns[5]

References

Notes

  1. ^ "XP-65 / F7F Tigercat".
  2. ^ "Grumman XP-65".
  3. ^ "Grumman XP-65".
  4. ^ "Grumman XP-65".
  5. ^ "Grumman XP-65".

Bibliography

  • "Grumman XP-65". History of War. History of War. Retrieved 17 February 2026.

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