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Engines

Engine type Number of cylinders Displacement (cm3) Supercharger Compression ratio Max. output HP/RPM

Weight

 (kg)

In-line four cylinder engines

   

Naturally aspirated in-line four cylinder engines
M132A - for fixed or adjustable propeller, for straight flying, capable of basic aerobatics with an inverted back position time of 5 seconds, barrel-roll forbidden, G force restrictions: +6g, -3,5g 4 3980 No 6,3:1 120/2700 102
M132AK - for fixed of adjustable propeller, oil system fully compatible with aerobatic flights and inverted flights, barrel rolls forbidden, G force restrictions: +6g, -3,5g 4 3980 No 6,3:1 120/2700 102
Supercharged in-line four cylinder engines
M332A -  with an on/off switchable supercharger,  for fixed of adjustable propeller, oil system fully compatible with aerobatic flights and inverted flights, barrel rolls forbidden, G force restrictions: +6g, -3,5g 4 3980 Yes 6,3:1 140/2700 105
M332AK - with an on/off switchable supercharger,  for fixed of adjustable propeller, oil system fully compatible with aerobatic flights and inverted flights, barrel rolls forbidden, G force restrictions: +6g, -3,5g 4 3980 Yes 6,3:1 140/2700 105
M332C - on/off switchable supercharger, for adjustable propeller, oil system fully compatible with aerobatic flights and inverted flights, barrel rolls forbidden G force restrictions: +8g, -5g.  4 3980 Yes 7,4:1 170/3000 105

In-line six cylinder engines

    

Naturally aspirated in-line six cylinder engines
M137A - for fixed,electrically adjustable or autonomous propellers, oil system fully compatible with aerobatics and inverted flights without restrictions, barrel rolls allowed, specially bulit crankshaft, frontal engine air intake, G force restrictions: +6g, -3,5g 6 5970 No 6,3:1 180/2750 146
M137AZ - for fixed,electrically adjustable or autonomous propellers, oil system fully compatible with aerobatics and inverted flights without restrictions, barrel rolls allowed, specially bulit crankshaft, rear engine air intake with a possibility of mounting an air filter, G force restrictions: +6g, -3,5g 6 5970 No 6,3:1 180/2750 146
Supercharged in-line six cylinder engines
M337A - for an adjustable pulling propeller, capable of basic aerobatics with a maximum inverted flight time of 5 seconds, barrel rolls forbidden, G force restrictions: +6g, -3,5g 6 5970 Yes 6,3:1 210/2750 153
M337AK - for an adjustable pulling propeller, capable of basic aerobatics with a maximum inverted flight time of 5 seconds, barrel rolls forbidden, G force restrictions:+6g, -3,5g 6 5970 Yes 6,3:1 210/2750 153
M337C - on/off switchable supercharger, for an adjustable propeller, oil system fully compatible with aerobatics and inverted flights, barrel rolls forbidden, G force restrictions: +8g, -5g.  6 5970 Yes 7,4:1 250/3000 153
 

Motory hvězdicové

   

M462RF - radial engine, aircooled nine cylinder with constant supercharging, for adjustable propeller, oil and fuel system designed for casual flights, G force restrictions: typical non-aerobatic flights compatible

9 10161 Yes 6,2:1 315/2450 218

Engine specifications:

  • gasoline engine with a four stroke combustion cycle
  • 4 or 6 cylinders in-line with an inverted layout
  • aircooled
  • centrifugal supercharger = some variants
  • low pressure sequential fuel injection into the intake valves
  • overhead camshaft layout (OHC)
  • dry crankshaft oil sump, acrobatic oil system
  • low octane fuels, certified for AVGAS and MOGAS
  • mineral or synthetic oil 

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