Boeing Model 42
American observation aircraft
Model 42 | |
---|---|
Role |
observation
Type of aircraft
|
National origin | United States |
Manufacturer | Boeing |
First flight | 6 February 1925 [1] |
Number built | 3 |
Developed from | Airco DH-4M-1 |
The Boeing Model 42 (also Boeing XCO-7 for Experimental Corps Observation Model 7) was an American biplane aircraft developed from the Airco DH.4 , taking advantage of the large number of aircraft left over after the end of World War I .
Development and design
The Model 42 was essentially an Airco DH-4M-1 fitted with new Boeing tailplanes, tapered wings, and tripod landing gear [ clarification needed ] . The first aircraft built, designated XCO-7, was used as a static test bed, and did not fly. The second aircraft, XCO-7A , used a standard DH-4M-1 fuselage and Liberty engine, with the Boeing modifications. The final aircraft, XCO-7B , added balanced elevators and inverted the Liberty engine. Both flyable aircraft were shipped to McCook Field , where the first flight occurred on 6 February 1925. [1]
The performance of the new aircraft did not justify the cost of the conversion, and Boeing abandoned the project. [2]
Specifications (XCO-7A)
Data from Bowers, 1966. pg. 60.
General characteristics
- Crew: 2
- Length: 29 ft 2 in (8.89 m)
- Wingspan: 45 ft 0 in (13.7 m)
- Height: 10 ft 8 in (3.25 m)
- Wing area: 440 sq ft (40.9 m 2 )
- Empty weight: 3,107 lb (1,409 kg)
- Gross weight: 4,665 lb (2,116 kg)
- Powerplant: 1 × Liberty L-12A , 420 hp (310 kW)
Performance
- Maximum speed: 112 mph (180 km/h, 97 kn)
- Cruise speed: 110 mph (177 km/h, 96 kn)
- Range: 420 mi (676 km, 360 nmi)
- Service ceiling: 13,050 ft (3,977 m)
Armament
- 4x 0.30 cal machine guns
References
- Bowers, Peter M. Boeing aircraft since 1916 . London: Putnam Aeronautical Books, 1966.