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Pratt & Whitney R-1340-AN1

Zero time since overhaul by Covington with new pistons

     The Pratt & Whitney R-1340-AN1 Wasp is a reciprocating engine widely used in American aircraft from the 1920's on. It was the company's first engine and the first of the famed Wasp family. It is a single-row, 9-cylinder, air-cooled radial design and displaces 1,344 cubic inches (22 liters).

2023 Price:


General Characteristics:

Type:  9-cylinder, single-row, supercharged, air-cooled radial engine

Bore:  5.75 in (146 mm)

Stroke:  5.75 in (146 mm)

Displacement:  1,344 cu in (22.02 L)

Length:  44.06 in (1,119 mm)

Diameter:  51.38 in (1,305 mm)

Dry Weight:  805 lb (365 kg) 



Valvetrain:  two overhead valves per cylinder

Supercharger:  single-speed, centrifugal-type, 10:1 reduction

Fuel System:  two-barrel Stromberg carburetor

Fuel Type:  80 octane rating gasoline

Cooling System:  air cooled 



Power Output:  542 hp (404 kW) at 2,200 rpm @ 5,000 ft (1,525 m)

Specific Power:  0.4 hp/cu in (18.36 kW/L)

Compression Ratio:  6.0:1

Specific Fuel Consumption:  0.44 lb/(hp•h)  [270 g/(kW•h)]

Oil Consumption:  0.32 oz/(hp•h)  [12 g/(kW•h)]

Power-to-Weight Ratio:  0.67 hp/lb (1.11 kW/kg)

***Price is considered outright with no core provided.***

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