Rotax 277, 28 HP, single cylinder aircraft engine specifications

Description:
Bore:
Stroke:
Displacement:
Compression Ratio:
Power Output:
Torque Max:
Max Recommended Rpm:
Cylinder:
Piston:
Piston/Cylinder Clearance:
Ignition System:
Generator output:
Rectifier-Regulator:
 
Ignition timing:
Contact breaker points gap:
Break away gap:
Spark plug:
Electrode gap:
Gear box:
Engine Lubrication:
Lubrication of gear box:
Cooling:
Weights:

gear drive B
carburetor with socket
exhaust system
intake silencer with filter
electric starter
gearbox (B), dry

Two-cycle,oil-in-fuel lubrication, fan-cooled
72.0mm (2.83 in)
66mm (2.6 in)
268.7 cc (16.4 in)
Theoretical 11.8, effective 6.7
19.0kW (25.5hp) @ 6100 rpm
31Nm (22.9 ft lb) @ 5700 rpm
6400 rpm 1/min
Light alloy cylinders w/cast iron sleeves.
Aluminum Cast piston w/2 piston rings
.08 - .09mm (.00315 - .00354 in)
Flywheel magneto generator SCP2 w/contact breakers
AC12V 75/23W
a) 866 080 for use with or without battery, limited to minimum of 12W consumption
b) 264 870 for use with or without battery, no limit of consumption
2.28mm = .09 in (19 degrees) B.T.D.C
.3mm - .4mm (.012- .016in)
8-12mm (.32-.47 in)
14mm, B8ES
.5mm (.02 in)
B type, available in 2:1, 2.24:1, 2.58:1, 3:1
Two-cycle oil for air cooled engines. 50:1
140 weight gear oil
Fan cooled or free air
Engine without carburetor, fuel pump exhaust,

19.3 kg (45.5lb)
.9 kg (2.0lb)
4.0 kg (8.8lb)
.84 kg (1.9lb)
3.5 kg (7.7lb)
4.5 kg (12.1lb)