Polish Aviation Museum

31-864 Kraków,
al. Jana Pawła II 39
phone: (12) 640 99 60,
(12) 642 40 70
e-mail: info@muzeumlotnictwa.pl

a cultural institution of the Malopolska Region

Małopolska – Kraków Region


Mecenas Muzeum

Kraków Airport

Instytut Techniczny Wojsk Lotniczych - sponsor restauracji samolotu Caudron  CR.714 Cyclone


Patroni Medialni

Skrzydlata Polska



Aircraft engine: Pratt & Whitney R-1830-S3C4-4 Twin Wasp

Pratt & Whitney R-1830-S3C4-4 Twin Wasp
USA
radial engine
1939



Configuration14-cylinder double radial
Coolingair-cooled
Displacement30 l (1,830.7 cu. in)
Compression ratio6.7
Propeller reduction gear ratio0.56
Weight660 kg
Maximum power1,200 hp at 2,700 RPM
Climb power1,100 hp at 2,550 RPM

The engine was designed at the Pratt & Whitney plant in East Hartford, Connecticut, USA. The company was established in 1925 by former employees of another famous engine factory Wright. It is the most numerously built engine of this shape in the history of aviation. The production started in 1934. The displayed engine represents the first version with two speed supercharger, introduced in 1939. This solution increased the ability of the engine to be used on aircraft operating on higher altitudes. The engine powered the F4F Wildcat, Vickers Wellington IV, Douglas A‑20 Havoc, Douglas C‑47B Dakota and Bristol Beaufort aircraft.

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Dofinansowano ze środków Ministra Kultury i Dziedzictwa Narodowego
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