FUEL CONSUMPTION
Rotary Engines have a reputation for high fuel consumption. Is this true?
We have worked extensively on our test benches to reduce the fuel consumption of our engines to levels which are now competitive with common reciprocating aviation engines. Instead of injecting fuel continuously as in a conventional reciprocating aircraft engine, the Digital Engine Management (DEM) System sends a precisely metered quantity of fuel at the right time to coincide with the inlet port opening. Consumption and emissions are therefore reduced while performance is increased.
Specific fuel consumption of around 0.6 lbs/HPhr can be expected for take-off and climb and below 0.48lbs/HPhr in cruise.
Fuel consumption @ cruise condition (65 to 85% maximum power):
G-200 : <40 l/h
G-230 : <50 l/h
G-300 : <60 l/h
G-360 : <80 l/h
For more technical questions:
G-200 : Brake Specific Fuel Consumption (BSFC) = 0.45-0.47
G-300 : BSFC = 0.47-0.48
OIL CONSUMPTION
G200: consumption 0.12 litres/hour
Capacity:
· 2 litres of oil in the system (& 2 litres of water)
· 8 litres of oil in the sump (& 3 litres of water)
o Total: 10 litres of oil ( & 5 litres of water)
G300: consumption 0.18 litres/hour
Capacity:
· 2 litres of oil in the system (& 2 litres of water)
· 10 litres of oil in the sump (& 4 litres of water)
o Total: 12 litres (& 6 litres of water)
Rotary Engines have a reputation for high oil consumption. Is this true?
Proprietary digitally-controlled oil metering pump - MISTRAL Engines has developed its own digitally controlled oil metering pump to lubricate the rotor seals in the engine. This allows precise metering of the oil and results in a very moderate consumption of 1/10 quart per hour for the G200.
Only one type of oil - The MISTRAL engine uses only one type of oil for the gearbox, engine block and metering system for Apex seal lubrication. This simplifies DI procedures and maintenance of the engine and minimises any risk of operational errors.