Hall XFH

XFH
Role	fighter
National origin	United States
Manufacturer	Hall Aluminum Company
Designer	Charles W. Hall
First flight	1929
Number built	1

The Hall XFH was an American fighter aircraft built by the Hall Aluminum Company. It was the first fighter with a semimonocoque metal fuselage.

Development

The XFH was designed in 1927 by Charles Hall. It was a single-bay biplane with N-struts for the fabric-covered wings. Its fuselage was made of steel tubing covered with a watertight aluminum skin, enabling it to float if ditched in the ocean. Also for ditching on water or on land, the landing gear could be jettisoned. Power was provided by a Pratt & Whitney Wasp radial engine. Testing in June 1929 showed poor handling characteristics and performance. During one test flight, the upper wing separated from the aircraft. After repairs, the XFH made test flights from an aircraft carrier. Designated XFH by the Bureau of Aeronautics, it was purchased not for active service, but to study new metal construction techniques.

Specifications

Data from Angelucci, 1987. pp. 256-257.

General characteristics

• Crew: one
• Length: 22 ft 6 in (6.85 m)
• Wingspan: 32 ft 0 in (9.75 m)
• Height: 11 ft 0 in (3.35 m)
• Wing area: 255 ft² (23.68 m²)
• Empty weight: 1,773 lb (804 kg)
• Gross weight: 2,514 lb (1,140 kg)
• Powerplant: 1 × Pratt & Whitney Wasp, 450 hp (336 kW) each

Performance

• Maximum speed: 153 mph (246 km/h)
• Range: 275 miles (443 km)
• Service ceiling: 25,300 ft (7,711 m)
• Rate of climb: 1786 ft/min (9.07 m/s)

Armament

• 2 × .30 in (7.62 mm) machine guns (never installed)