Curtiss A-12 Shrike
|Primary users||United States Army Air Corps|
Nationalist Chinese Air Force
|Developed from||XA-8 Shrike|
The Curtiss A-12 Shrike was the United States Army Air Corps' second monoplane ground-attack aircraft, and its main attack aircraft through most of the 1930s. It was based on the A-8, but had a radial engine instead of the A-8's inline, water-cooled engine, as well as other changes.
Design and development
The Model 60 was developed from advancements of the A-8 and the experimental YA-10. However, it became obsolete after a short use period, mainly because of fast-improving aviation technology, as well as the USAAC's desire for multi-engined attack aircraft.
The most obvious difference between the A-12 and the A-8 is the air-cooled, radial engine in the A-12, which replaced the A-8's inline, water-cooled engine. This was a response to the USAAC's move toward a preference for radial engines, especially in attack aircraft. The rationale behind this preference is that the radial engine has a lower profile, making it less vulnerable to ground fire, and a simpler cooling mechanism, which is also less prone to groundfire, as well as overall maintenance problems.
These aircraft retained the open cockpit introduced in the A-8 production batch, and carried the same weapons load. In an attempt to improve pilot/observer co-operation, the rear cockpit was moved forward sufficiently for its glazed covering to form a continuation of the fuselage decking behind the pilot's cockpit.
- Chinese Nationalist Air Force received 20 A-12 Shrikes in 1936, arming the 27th and the 28th Squadron of the 9th Group. When full-scale war broke out between Japan and China, they were used. The initial success including the downing of four Japanese Aichi D1A1 carrier-based dive bombers on 15 August 1937. However, after deploying in ground support missions in Shanxi, most did not survive and the few left were reassigned to training duties.
Specifications (A-12 Shrike)
- Crew: 2
- Length: 32 ft 3 in (9.83 m)
- Wingspan: 44 ft 0 in (13.41 m)
- Height: 9 ft 0 in (2.74 m)
- Wing area: 284 sq ft (26.4 m2)
- Empty weight: 3,898 lb (1,768 kg)
- Gross weight: 5,756 lb (2,611 kg)
- Powerplant: × Wright R-1820-21 Cyclone 9-cylinder air-cooled radial piston engine, 690 hp (510 kW)
- Propellers: 2-bladed fixed-pitch propeller
- Maximum speed: 176.7 mph (284.4 km/h, 153.5 kn)
- Cruise speed: 151 mph (243 km/h, 131 kn)
- Range: 521 mi (838 km, 453 nmi)
- Service ceiling: 15,150 ft (4,620 m)
- Rate of climb: 1,170 ft/min (5.9 m/s)
- 4 × forward-firing 0.300 in (7.6 mm) M1919 Browning machine guns mounted in the wheel fairings
- 1 × 0.300 in (7.6 mm) machine gun mounted in the observer's cockpit for rear defense
- Bombs: Up to 4 × 122 lb (55 kg) bombs carried under the wings or up to 10 × 30 lb (14 kg) fragmentation bombs in fuselage chutes either side of the main fuel tank
Aircraft of comparable role, configuration and era
- Fahey, James C. U.S. Army Aircraft 1908–1946. New York: Ships and Aircraft, 1946.
- "Curtiss A-12." National Museum of the United States Air Force. Retrieved: 7 July 2017.
- Swanborough, F. G. and Peter M. Bowers. United States Military Aircraft Since 1909. New York: Putnam, 1964. ISBN 0-85177-816-X.
- Eden and Moeng 2002, p. 514.
- Fitzsimons 1969, p. 2324.
- Bowers, Peter M. (1979). Curtiss aircraft, 1907-1947. London: Putnam. pp. 327–331. ISBN 0370100298.
- Eden, Paul and Soph Moeng, eds. The Complete Encyclopedia of World Aircraft. London: Amber Books Ltd., 2002, ISBN 0-7607-3432-1.
- Fitzsimons, Bernard, ed. The Illustrated Encyclopedia of the 20th Century Weapons and Warfare, Vol. 21 London: Purnell & Sons Ltd., 1969, First edition 1967. ISBN 0-8393-6175-0.
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