Ronald Valentine Engines
The finest miniature engines in the world
BWM Diesel Engines
BWM 251 D and 150 D
Technical Data:
Type 150 D 251 D
Bore 12.7 mm 15.0 mm
Stroke 11.7 mm 14.0 mm
Rpm 12,500 rpm 15,000 rpm
Power 0.12 Hp 0.27 Hp
Total combustion 1.49 cc 2.46 cc
Weight 90 g 165 g
Intake front disc valve
Technical Data:
Type 150 D 251 D
Bore 12.7 mm 15.0 mm
Stroke 11.7 mm 14.0 mm
Rpm 12,500 rpm 15,000 rpm
Power 0.12 Hp 0.27 Hp
Total combustion 1.49 cc 2.46 cc
Weight 90 g 165 g
Intake front disc valve
The BWM engines were manufactured by Horst Friese in his company Berliner Werkstaetten fuer Modellmechanik. They produced 12 different engines.
BWM 150 D 1.49cc
BWM 251 D 2.46cc Diesel Engine
1954 BWM 251 D
