Engine Warm Up - Vittorazi Motors COSMOS 300 User Manual

4.4 Engine warm up

Warm up the engine before use.
30 sec
2-6 min
15-20 sec
Be careful. The thrust generated by the propeller can be sudden and must be ensured with
the right procedure when warming up the engine.
If the outside temperature is below 15 °C, cover the central part of the radiator (1) with the
radiator band (2). The radiator band is an available option designed by Vittorazi.
Cosmos 300 – User manual – V3
Gently accelerate to stabilize engine and carburettor
Heat the engine at constant RPM (4.500 RPM) until liquid
temperature reach 65 °C.
If H2O sensor is not installed, heat the engine for about:
• 2-3 min with ambient air temperature above 15 °C;
•
5-6 min with ambient air temperature below 15 °C.
Keep FULL throttle
NOW the engine is ready to fly
22