ORIGINAL: serious power
Hi,
Is that hard mounted and using a simple can for exhaust.
If so it will be a threat to flying sites, noise nuisance wise, never mind about passing sound tests for F3A.
Brian
I saw that too, and I tend to agree. If I were to hazard a guess though, I would say that Claude knows that.
We know how to quiet them......Quieting a gasoline engine is no different than quieting a glow. I have a bunch of information on RCU on exactly how to do that. Even something as large as a DLE55cc.
The noise re-directors gas engines are equipped with, their so called mufflers, do not have to be used. Pipes and soft mounts along with large, higher pitched props, become mandatory items for noise suppression, just as they are for glow.... I use ES Composites carbon pipes, but the Mintor aluminum pipe for their 38 cc engine works fine also at only a 45 gram weight penalty; but at about half the cost of the carbon pipe