Curtiss F7C Seahawk

F7C-1 Seahawk
The Curtiss XF7C-1 in June 1929
General information
TypeFighter
ManufacturerCurtiss Aeroplane and Motor Company
Primary userUnited States Marine Corps
Number built17
History
First flight28 February 1927
Retired1933

The Curtiss F7C Seahawk was a carrier-capable biplane fighter aircraft of the United States Navy Marine Corps in the late 1920s and early 1930s.

Design and development

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Curtiss' Model 43 was their first aircraft designed expressly for the Navy, rather than a modified Army type. While clearly a descendant of the P-1 Hawk, its wings were constant-chord rather than tapered, and the upper wing had a slight sweepback. The engine was a 450 hp (340 kW) Pratt & Whitney R-1340-B Wasp radial. Entirely fabric-covered, the top wing was framed with spruce, while the fuselage was built from a combination of aluminum and steel tubing, sufficiently strong to serve as a dive bomber as well as a fighter.

Operational history

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The prototype XF7C-1 first flew on 28 February 1927. After some modification demanded by the Navy (such as the wing sweepback), 17 production aircraft F7C-1 Seahawks were built, and entered service in the USMC's VF-5M at Quantico. In 1930 VF-9M organized the Marines' first aerobatic stunt team, "The Red Devils", with F7Cs featuring red painted noses.[1][2] They continued in service until 1933.

Variants

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The XF7C-1 as a seaplane without the cowling.
  • XF7C-1: Prototype aircraft; one built.
  • F7C-1 Seahawk: Single-seat fighter aircraft, main production version; 17 built.
  • XF7C-2: Single F7C-1 conversion for evaluation with the 575 hp (429 kW) Wright R-1820-1 radial engine and large-span full-span flaps.
  • XF7C-3: A demonstration prototype for China with an armament of four .30 in (7.62 mm) M1919 Browning machine guns, I-type interplane struts, and ailerons on both the upper and lower wings rather than on just the upper wing. The type was superseded by the Model 64, F11C Goshawk.

Operators

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 United States

Specifications (F7C-1)

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Data from Curtiss Aircraft 1907–1947[3]

General characteristics

  • Crew: 1
  • Length: 22 ft 7.25 in (6.8898 m)
  • Wingspan: 30 ft 8 in (9.35 m)
  • Height: 9 ft 8.5 in (2.959 m)
  • Wing area: 275 sq ft (25.5 m2)
  • Airfoil: Curtiss C-72[4]
  • Empty weight: 2,053 lb (931 kg)
  • Gross weight: 2,768 lb (1,256 kg)
  • Powerplant: × Pratt & Whitney R-1340B Wasp 9-cylinder air-cooled radial piston engine, 450 hp (340 kW)
  • Propellers: 2-bladed fixed-pitch propeller

Performance

  • Maximum speed: 155.5 mph (250.3 km/h, 135.1 kn)
  • Cruise speed: 150 mph (240 km/h, 130 kn)
  • Range: 355 mi (571 km, 308 nmi)
  • Service ceiling: 22,100 ft (6,700 m)
  • Rate of climb: 1,860 ft/min (9.4 m/s)

Armament

References

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Notes

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  1. ^ Skyways, July 2001, p. 60.
  2. ^ Barrow 1981, p. 49.
  3. ^ Bowers, Peter M. (1979). Curtiss aircraft, 1907-1947. London: Putnam. pp. 198–200. ISBN 0370100298.
  4. ^ Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

Bibliography

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