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 M-208B (Doris BI)

Praga Doris M-208B (Doris BI)
Czechoslovakia
inline engine
1954



Configuration6-cylinder flat
Coolingair-cooled
Displacement7.16 l (421 cu in)
Compression ratio7.0
Propeller reduction gear ratio0.55
Weight214 kg (742 lb)
Maximum power220 hp at 3,000 RPM
Climb power200 hp at 2,900 RPM

An engine designed by a team led by Eng. Krulisz of Motorlet (former Walter) factory. Many technical difficulties occurred during the designing and assembly of the prototype. The state trials were conducted in 1955 and subsequently the engine entered production. It was not a successful design, being unreliable and causing many operating problems. The engine was used in Aero L‑60 Brigadyr aircraft.

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Dofinansowano ze środków Ministra Kultury i Dziedzictwa Narodowego
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