NINE CYLINDER
RADIAL AIRCRAFT PISTON ENGINE



 
 
 

TECHNICAL
SPECIFICATIONS
M462-RF
Configuration Radial - one row, Supercharged, Geared
Cooling Air
No. of Cylinders 9
Cylinder Bore 105 mm = 4 in.
Piston Stroke 130 mm = 5 in.
Displacement 10.16 L = 620 Cubic Inches 
Compression Ratio 6.2 : 1
Rotation c'clockwise (Pilot's View)
Engine/Propeller Speed Ratio 1 : 0.787
Engine/Supercharger Speed Ratio 1 : 8.82
Take-Off Power 315 HP @ 2,450 RPM (5 min.)
Max. Continuous Power 280 HP @ 2,200 RPM
Cruise Power 195 HP @ 1,900 RPM
Idle 550 RPM
Max. RPM Dive 2,700 (3 min.)
Fuel Min. 80 Octane gasoline
Ignition 2 magnetos
Starting Compressed Air
Dry Weight - includes
generator, compressor and
partial engine mount
218 kg = 480 lbs
Specific Fuel Consumption
(Cruise Power)
210 - 225 gr/HP/Hr  =
0.46 - 0.49 lb/HP/Hr