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The Douglas O-43 was a monoplane observation aircraft used by the United States Army Air Corps.
| O-43 | |
|---|---|
 | |
| Role | Observation |
| Manufacturer | Douglas Aircraft Company |
| Introduction | 1930 |
| Primary user | United States Army Air Corps |
| Number built | 24[1] |
| Developed from | Douglas O-31 |
| Variants | Douglas O-46 |
Development
Five Y1O-31A service-test aircraft were ordered in 1931, and delivered to the USAAC in early 1933 designated Y1O-43. They differed from the final configuration of the O-31A, with a wire-braced parasol wing, and a new fin and rudder. An order for 23 O-43A aircraft was completed during 1934, with a deepened fuselage, which eliminated the need for the ventral bulge under the observer's position. Powered by a single 675 hp Curtiss V-1570-59 inline engine, it also had taller vertical surfaces with an inset rudder similar to the O-31A. The canopy was enlarged, and fully enclosed both cockpits. The O-43 and O-43A served with the USSAC observation squadrons for several years before being assigned to National Guard units,[2] such as the 111th Observation Squadron Brownwood Airfield Texas, 15th Observation Squadron Fort Sill Oklahoma, and 3rd Observation Squadron Langley Field Virginia.
The 24th airframe of the O-43A contract was completed as the XO-46 prototype.
Specifications (O-43A)
Data from McDonnell Douglas aircraft since 1920 : Volume I[3], United States military aircraft since 1909[4]
General characteristics
- Crew: 2
- Length: 33 ft 11 in (10.34 m)
- Wingspan: 45 ft 11 in (14.00 m)
- Height: 12 ft 3 in (3.73 m)
- Wing area: 334 sq ft (31.0 m2)
- Empty weight: 4,135 lb (1,876 kg)
- Gross weight: 5,300 lb (2,404 kg)
- Powerplant: × Curtiss V-1570-59 Conqueror V-12 liquid-cooled piston engine, 675 hp (503 kW)
- Propellers: 3-bladed metal propeller
Performance
- Maximum speed: 190 mph (310 km/h, 170 kn)
- Cruise speed: 163 mph (262 km/h, 142 kn)
- Service ceiling: 22,400 ft (6,800 m)
- Time to altitude: 5,000 ft (1,500 m) in 3 minutes 18 seconds
- Wing loading: 15.8 lb/sq ft (77 kg/m2)
- Power/mass: 0.127 hp/lb (0.209 kW/kg)
Armament
- Guns: 1x fixed and 1x flexible .30 cal (7.62 mm) Browning machine gun
See also
Related development
Aircraft of comparable role, configuration, and era
- Breguet 270 Series
- Heinkel He 46
- RWD-14 Czapla
Related lists
- List of military aircraft of the United States
References
- "U.S. Army Aircraft 1908-1946" by James C. Fahey, 1946, 64pp.
- "The Complete Encyclopedia of World Aircraft" cover Editors: Paul Eden & Soph Moeng, (Amber Books Ltd. Bradley's Close, 74-77 White Lion Street, London, NI 9PF, 2002, ISBN 0-7607-3432-1), 1152 pp.
- Francillon, René J. (1988). McDonnell Douglas aircraft since 1920 : Volume I. London: Naval Institute Press. pp. 111–118. ISBN 0870214284.
- Swanborough, F. G.; Bowers, Peter M. (1971). United States military aircraft since 1909 (Revised ed.). London: Putnam. pp. 231–233. ISBN 0370000943.
External links
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