Military Propellor Planes
North American Rockwell OV-10 Bronco
ICAO: V10
Overview
The North American O-47 was designed and manufactured by North American Aviation as an observation fixed-wing aircraft monoplane with a low-wing configuration, retractable undercarriage, and a three-blade propeller. Introduced in 1937, the aircraft was primarily used by the United States Army Air Corps. It first flew in November 1935 and has a total number of 239 aircraft built.
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Specifications
Units
- Engine
- 1 × Wright R-1820-49 radial
- Engine type
- Piston
- Power
- 975 hp · 727 kW
- Avionics
- —
- Wing tips
- No winglets
- Seats
- 3
- Crew
- —
- Cabin width
- —
- Cabin height
- —
- Cabin length
- —
- Exterior length
- 33 ft 3 in · 10.13 m
- Tail height
- 12 ft 2 in · 3.70 m
- Fuselage diameter
- 3 ft 11 in · 1.20 m
- Wing span
- 46 ft 4 in · 14.12 m
- Baggage volume
- —
- Gross weight
- —
- Empty weight
- —
- Max takeoff weight
- 8,050 lb · 3,650 kg
- Max landing weight
- —
- Max payload
- —
- Fuel capacity
- Max cruise speed
- 192 kt · 221 mph · 356 km/h
- Maximum speed
- —
- Cruise speed
- —
- Approach speed
- —
- Range
- 730 nm · 840 mi · 1,350 km
- Fuel burn
- —
- Ceiling
- 23,200 ft · 7,100 m
- Rate of climb
- 1,470 ft/min · 7 m/s
- Takeoff distance
- —
- Landing distance
- —
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Operational Context
The North American O-47 was designed to replace the observation biplanes of the United States Army Air Corps such as the Thomas-Morse O-19 and the Douglas O-38. The new aircraft was bigger and weightier compared to its antecedent and could accommodate three crew members including a pilot, a copilot-observer, and a gunner in a tandem configuration below its long canopy.
In 1934, the prototype designated as XO-47 was built; it was powered by an 850 horsepower Wright R-1820-41 engine. In November 1935, the aircraft took to the air for the first time. The O-47A version was constructed in Inglewood California with a total number of 164 aircraft built.
From 1937 to 1938, the USAAC ordered a total of 174 aircraft, and ninety-three were deployed to National Guard units. In 1938, a total of seventy-four O-47Bs were ordered by the Army equipped with a redesigned engine cowling to improve cooling, a more powerful engine, and updated radio equipment.
The O-47A has an external length of 10.24 meters, an external height of 3.2 meters, and a fuselage width of 1.2 meters. The wingspan is 14.1 meters and the wing area is 32.5 square meters. It has a tail height of 3.7 meters and a wheelbase of 6.3 meters.
The empty weight is 2,712.5 kg, the gross weight is 3,463.6 kg, and the maximum takeoff weight is 3,649 kg. The aircraft is powered by a single Wright R-1820-49 radial engine with a thrust rating of 975 horsepower. The O-47A has a maximum speed of 192 knots and a cruise speed of 170 knots.
The travel range is 730 nautical miles. It has a service ceiling of 23,200 feet and a climb rate of 1,470.8 feet per minute. The aircraft could be loaded with a single fixed forward-firing .30 cal machine gun with 200 rounds in the starboard wing and a single flexible .30 cal machine gun with 600 rounds in the rear cockpit.
Sources and references used for research and fact-checking.