Curtiss O-52 Owl
|The O-52 at National Museum of the United States Air Force|
|Primary users||United States Army Air Corps|
Soviet Air Forces
Design and development
Developed in 1939, the Curtiss O-52 was the last "heavy" observation aircraft developed for the US Army Air Corps. The concept of the two-seat observation aircraft, classed as the "O" series aircraft, dated to World War I, and in 1940, the Army Air Corps ordered 203 Curtiss O-52s for observation duties. By 1941, the O-52 was no match for modern combat conditions.
Upon delivery, the aircraft was used in military maneuvers with the USAAC, but following America's entry into World War II, the USAAF determined that the aircraft did not possess sufficient performance for "modern" combat operations in overseas areas. As a result, the O-52 was relegated to courier duties within the U.S. and short-range submarine patrol over the Gulf of Mexico and Atlantic and Pacific Oceans.
The O-52 was the last "O" type aircraft procured in quantity for the Air Corps. Following the attack on Pearl Harbor, the "O" designation was discontinued and the "L" series for liaison-type aircraft was adopted instead.
In November 1942, the USSR ordered 30 O-52 Owls through the Lend-Lease program. Twenty-six were shipped, with only 19 delivered as a number were lost on the North Arctic Route. Of these only ten were accepted into service. They were used operationally for artillery fire spotting and general photographic and observation platforms in north and central areas on the Russian Front during spring–summer 1943. One O-52 was shot down by Luftwaffe fighters. The aircraft was generally disliked in Soviet use although some were still flying into the 1950s.
- 40-2746 – O-52 on static display at the Pima Air & Space Museum in Tucson, Arizona.
- 40‐2763 – O-52 on static display at the National Museum of the United States Air Force in Dayton, Ohio.
- 40-2769 – O-52 on display at the Yanks Air Museum in Chino, California.
- Crew: 2
- Length: 26 ft 4.25 in (8.0328 m)
- Wingspan: 40 ft 9 in (12.42 m)
- Height: 9 ft 11.5 in (3.035 m)
- Wing area: 210 sq ft (20 m2)
- Empty weight: 4,231 lb (1,919 kg)
- Gross weight: 5,364 lb (2,433 kg)
- Powerplant: 1 × Pratt & Whitney R-1340-51 Wasp 9-cylinder air-cooled radial piston engine, 600 hp (450 kW)
- Propellers: 3-bladed metal propeller
- Maximum speed: 220 mph (354 km/h; 191 kn)
- Cruise speed: 192 mph (309 km/h; 167 kn) at 75% power
- Time to altitude: 10,000 ft (3,000 m)
- Guns: 1 × fixed forward-firing 0.30 in (7.62 mm) machine gun and 1 × 0.30 in (7.62 mm) machine-gun on a flexible mount in the rear cockpit
Aircraft of comparable role, configuration and era
- Hardesty 1991, p. 253, Appendixes.
- "OWL". Pima Air & Space Museum. Retrieved 30 July 2018.
- "Curtiss O-52 Owl". National Museum of the US Air Force. 7 April 2015. Retrieved 30 July 2018.
- "AIRCRAFT, DRONES AND MISSILES AT THE NATIONAL MUSEUM OF THE U.S. AIR FORCE" (PDF). National Museum of the US Air Force. June 2016. Retrieved 30 July 2018.
- "Curtiss 85 Owl (O-52)". Yanks Air Museum. Yanks Air Museum. Retrieved 30 July 2018.
- "Airframe Dossier - Curtiss O-52 Owl, s/n 40-2769 USAAF, c/n 14302, c/r N61241". Aerial Visuals. AerialVisuals.ca. Retrieved 30 July 2018.
- Bowers, Peter M. (1979). Curtiss aircraft, 1907-1947. London: Putnam. pp. 433–435. ISBN 0370100298.
- Donald 1995, p. 64.
- Donald, David. American Warplanes of World War II. London: Aerospace Publishing, 1995. ISBN 1-874023-72-7.
- Hardesty, Von. Red Phoenix: The Rise of Soviet Air Power 1941-1945. Washington, D.C.: Smithsonian Institution, 1991. ISBN 0-87474-510-1.
- United States Air Force Museum Guidebook. Wright-Patterson AFB, Ohio: Air Force Museum Foundation, 1975.
Media related to Curtiss O-52 Owl at Wikimedia Commons