Ronald Valentine Engines
The finest miniature engines in the world
Profi Prototype
1972 Profi 60 R/C
Technical Data:
Bore 24.0 mm
Stroke 22.0 mm
Rpm 12,800 rpm
Power 2.25 Hp
Total combustion 9.98 cc
Weight 130 gram
Intake Front disc
This 60 size Profi prototype is a very interesting engine. The intake is controlled over a front disc valve.
Profi Prototype
Technical Data:
Bore 24.0 mm
Stroke 22.0 mm
Rpm 12,800 rpm
Power 2.25 Hp
Total combustion 9.98 cc
Weight 130 gram
Intake Front disc
This 60 size Profi prototype is a very interesting engine. The intake is controlled over a front disc valve.
Profi Prototype
Hans Hoernlein's Profi Prototype
Profi 60 / 10.0 cc
