O.S. Engines FT-300 Gemini User Manual
Page 5
INSTALLATION
if the tank is located high, fuel will flow into the carburettor
"Gemini Series" engines should be mounted with the when the tank is full. Therefore, pinch the fuel line with a
carburettor below the crankcase, otherwise scale ap- clip, when the engine is not running, to prevent flooding
pearance may be spoiled, and loss of fuel.
The needle-valve and throttle lever locations are inter- F U E L
changeable and the choke valve rod can be located right or
left. Decide their most convenient locations before mount- The "Gemini Series" engine runs on standard commercially
ing the engine in the fuselage, available model glowplug engine fuel. Fuels containing
castor-oil and/or synthetic lubricants are acceptable but, for
FUEL TANK the best performance and reliability, a fuel containing
5—15% nitromethane is recommended.
The ideal fuel tank location is with the top of the tank For consistent performance and long life of the engine, it is
5-10 mm (1/4-3/8") above the needle valve. However, advisable to use good quality fuel containing AT LEAST
model design will usually require the tank to be located 10% lubricant.
higher than this and there should be no trouble with such a
tank location provided that you do not pursue spectacular
acrobatic flight.
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