Cosmos 300: What Is It - Vittorazi Motors COSMOS 300 User Manual

3 Cosmos 300: What is it?

Cosmos 300 is a single cylinder, two-stroke piston engine, liquid cooled and fuelled with a mixture
of gasoline and oil.
Power is transmitted from the crankshaft to the propeller shaft through a reduction ratio with
spur gear system. The air inlet system consists of an airbox and a filter. Mixture of gasoline and oil
is introduced in the cylinder through a diaphragm carburettor system. The carburettor has been
calibrated before delivery in combination with this engine.
The Cosmos 300 engine has been designed and tested for small ultralight, push-propelled,
low-speed aircraft such as paramotors trike launch.
The Cosmos 300 ULM engine has been developed and tested for fast ULM applications such
as ultralight, hang glider, autogyro, multi-axis, all in push versions.
For safety reasons, only the Cosmos 300 ULM is suitable for fast ULM applications. Using the
Cosmos 300 version for fast ULM applications entails serious dangers. Therefore, use the
engine under the conditions indicated in the manual and always within the limit conditions
of the aircraft with which the engine has been tested and then approved by the aircraft
manufacture.
This manual is intended for the engine Cosmos 300 MY23, in all versions listed below:
Where:
- ULM: ultralight, hang glider, autogyro, multi-axis, all in a push version.
- DS: dual starter, single spark.
- DT: dual starter, twin spark.
- MS: manual starter, single spark
- 304: gear ratio 3.04
Cosmos 300 – User manual – V3 8