Curtiss-Wright AT-9

Advanced twin-engine trainer in the early 1940s

Curtiss AT 9 Jeep Fledgling at the National Museum of the United States Air Force. 1
photo: U.S. Air Force

The Curtiss-Wright AT-9 was developed and produced by Curtiss-Wright Corporation as an advanced twin-engined trainer aircraft of the United States in the Second World War. It was built to have the qualities of both a single-engine trainer aircraft and a twin-engined combat fighter. The aircraft was a low-wing cantilever monoplane which first flew in 1941. It was produced from 1941 to 1943 with a total number of 792 aircraft built including prototype and AT-9A versions.

Manufacturer:
Curtiss
Country:
United States
Manufactured:
1941 to: 1943
ICAO:
AT9
Price:

Specifications

Avionics:
Engine:
2x Lycoming R-680-9
Piston
Power:
295 horsepower
Max Cruise Speed:
171 knots
317 Km/h
Approach Speed (Vref):
Travel range:
650 Nautical Miles
1,204 Kilometers
Fuel Economy:
Service Ceiling:
19,000 feet
Rate of Climb:
1175 feet / minute
5.97metre / second
Take Off Distance:
Landing Distance:
Max Take Off Weight:
2,749 Kg
6,060 lbs
Max Landing Weight:
Max Payload:
Fuel Tank Capacity:
Baggage Volume:
Seats - Economy / General:
2 seats
Seats - Business Class:
Seats - First Class:
Cabin Height:
Cabin Width:
Cabin Length:
Exterior Length:
9.65 metre - 31.66 feet
Tail height:
3 metre - 9.84 feet
Fuselage Diameter:
1.5 metre - 4.92 feet
Wing Span / Rotor Diameter:
12.29 metre - 40.32 feet
Wing Tips:
No Winglets
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Description

The American manufacturing company Curtiss-Wright developed the CW-25 prototype with fuselage and tail surfaces covered in fabric upon anticipating the need for a high-performing aircraft powered by twin engines. The prototype was built with the characteristics of a light bomber in taking off and landing.

In 1941, it took to the air for the first time. In 1942, the production variant designated as AT-9 entered into service. The manufacturing company gave the aircraft the name  “Fledgling”; however, it became more popular with the United States Army Air Forces designation “Jeep”. The AT-9A version was powered by two Lycoming R-680-11 radial engines and equipped with a modified hydraulic system. The Jeep was produced until 1943 with a total number of 792 aircraft built including prototype and AT-9A versions.

The AT-9 is a two-crew production version with an external length of 9.65 meters, an external height of 2.4 meters, and a fuselage diameter of 1.5 meters. It has a tail height of 3 meters and a wheelbase of 6.6 meters. The wingspan is 12.29 meters and the wing area is 21.6 square meters. The aircraft has an empty weight of 2,038 kg and a gross weight of 2,749 kg.

The AT-9 is powered by twin Lycoming R-680-9 engines. It is a nine-cylinder air-cooled radial engine with one inlet and one exhaust valve per cylinder at 30 degrees, a single-barrel carburetor, a full pressure type oil system, and an air cooling system. The engine produces a maximum thrust of 295 hp each and drives two-bladed propellers. It has a maximum speed of 171 knots and a cruise speed of 152 knots. The travel range is 650 nautical miles. It can fly up to 19,000 feet and can climb at a rate of 1,175 feet per minute.

All Curtiss Aircraft

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