DLE 30 engine :
First video of FIRST flip:
http://www.youtube.com/watch?v=ayclxTvElJI
At the end of 1.5 liters burned at low rpm , with 95 octanes petrol , 25:1 (4%) of Repsol 2T mineral oil fuel, it turns a 18x8 Menz's propeller @ more than 8.400 rpm with stock muffler. Spark plug is a little dark, but not yet fine tunning of needles.
Awesome engine.
Regards.
More videos uploaded:
Performance with 18x8
http://www.youtube.com/watch?v=kOQ7EjWTMsU
Start by hand :
http://www.youtube.com/watch?v=HaMkQ2cEfS8
Regards