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: Praga Doris D

Praga Doris D
Czechosloviakia
inline engine
1936



Configuration4-cylinder flat
Coolingair-cooled
Displacement2.93 l (173 cu in)
Compression ratio6.1
Weight67 kg (148 lb)
Maximum power75 hp at 2,650 RPM

The engine was intended for light aircraft. It was designed at Praga works in 1936, but entered large-scale production only after World War II. It was used on Zlin Z‑22 Junak and Mraz M‑2 Skaut.

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