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Beechcraft XA-38 Grizzly

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1944 prototype attack aircraft by Beechcraft
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XA-38 Grizzly
General information
TypeAttack aircraft
National originUnited States
ManufacturerBeechcraft
StatusCanceled
Primary userUnited States Army Air Forces
Number built2
History
First flight7 May 1944

TheBeechcraft XA-38 "Grizzly" was a World War II-era groundattack aircraft, developed byBeechcraft, but never put into production. The Grizzly was to have been fitted with a forward-firing75 mm cannon to penetrate heavily armored targets.

While the first prototype flew on 7 May 1944, testing established that the type would not be ready for the projectedinvasion of Japan. It also featured theWright R-3350 engines already in use with theBoeing B-29 Superfortress—which had priority. Consequently, the XA-38 was canceled after a second prototype had been completed.

Design and development

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TheUnited States Army Air Forces awarded the Beech Aircraft Corporation a contract in December 1942 for two prototypes for their Model 28 "Destroyer".[1]Initially the Model 28 had been a bomber-destroyer design but shifted[citation needed] to give a powerful ground attack aircraft to replace theDouglas A-20 Havoc, with the ability to hit "hardened" targets liketanks andbunkers and to attack coastal shipping.[1] This capability was achieved through a 75 mm cannon with 20 rounds, mounted in a fixed position on the nose as well as two .50 cal (12.7 mm)M2 Browning machine guns firing forward. Defensive armament consisted of remotely controlled ventral and dorsal turrets, each armed with twin .50 cal (12.7 mm) machine guns. There were to be two crew members, a pilot and an observer/gunner in the rear cabin, using periscope sights to aim the guns.

Testing

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On 7 May 1944, Beechtest pilot Vern Carstens flew the XA-38 on its maiden flight from the company'sWichita airfield.[2] The aircraft proved satisfactory in all respects and better than expected in some, including top speed.

During testing, the XA-38 prototypes were flown by USAAF pilots and serviced by military personnel, proving to be reliable and establishing a high level of serviceability.[3]

The armament proved especially effective; if not for a shift in wartime priorities in 1944, the aircraft would most likely have been ordered in quantity[citation needed] even though the B-29 had priority for theWright R-3350 engines. Instead, one prototype was scrapped and the other, intended for theUSAF Museum, had an unknown fate.

Specifications

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Data from Plane Facts: The big gun Beech[4]

General characteristics

  • Crew: 2
  • Length: 51 ft 9 in (15.77 m)
  • Wingspan: 67 ft 4 in (20.52 m)
  • Height: 15 ft 6 in (4.72 m)
  • Wing area: 626 sq ft (58.2 m2)
  • Empty weight: 22,480 lb (10,197 kg)
  • Max takeoff weight: 35,265 lb (15,996 kg)
  • Powerplant: 2 ×Wright R-3350-43 air-cooledradial engines, 2,300 hp (1,700 kW) each

Performance

  • Maximum speed: 370 mph (600 km/h, 320 kn)
  • Range: 1,625 mi (2,615 km, 1,412 nmi)
  • Service ceiling: 29,000 ft (8,800 m)
  • Rate of climb: 2,600 ft/min (13 m/s)

Armament

  • Guns:
    • 1 × T15E1 75 mm cannon (20 rounds)
    • 6 × .50 caliber (12.7 mm)M2 Browning machine guns (2 forward-facing, 2 in ventral turret, 2 in dorsal turret)

See also

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Aircraft of comparable role, configuration, and era

Related lists

References

[edit]
This article includes a list ofgeneral references, butit lacks sufficient correspondinginline citations. Please help toimprove this article byintroducing more precise citations.(November 2009) (Learn how and when to remove this message)
  1. ^abPelletier 1995, p. 86
  2. ^Pelletier 1995, p. 88
  3. ^Trimble, Robert L.. (August 1983). "Beech Grizzly".Air Classics.9 (7): 24.
  4. ^"Plane Facts: The big gun Beech".Air International. Vol. 30, no. 6. June 1986. p. 300.ISSN 0306-5634.
  • Pelletier, A. J. (1995).Beech Aircraft and their Predecessors. Annapolis, Maryland, USA: Naval Institute Press.ISBN 1-55750-062-2.

Further reading

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  • McCullough, Anson (August 1995). "Grind 'Em Out Ground Attack: The Search for the Elusive Fighter Bomber".Wings.25 (4).
  • Bridgman, Leonard, ed. (1947).Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. p. 181c.

External links

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