Hey Guys, maybe its a little bit soon because i have just (almost) finished the wings for my SB RV7. But i made very fast and good progess so far and i think i can hang the engine (planned is a IO-360 180hp) next fall or winter.
Regarding the prop: i will get a german registration for the airplane. like in many other european countrys the noise level requirements for a new to be registered airplane are harder to achieve than in the USA. and they will get harder the next years. so the noise of the engine/prop combination (most likley the lyco will get a internal muffler) is a major concern for me.
probably i will put a Hartzell C/S 72" 2 blade on it but i'm not sure about the way to go... metal blended airfoil or composite. i was mailing hartzell and they said that (beside some advantages in efficiency and thrust) in general composite props tend to be more quiet than their metal counterparts. but as far as i understood it, they didn't make further researches on this issue yet.
could somebody add a little bit of light to this....?
Thank you... and a happy 2010 (just don't die this year)!
Kay
Huntsville, Alabama
Regarding the prop: i will get a german registration for the airplane. like in many other european countrys the noise level requirements for a new to be registered airplane are harder to achieve than in the USA. and they will get harder the next years. so the noise of the engine/prop combination (most likley the lyco will get a internal muffler) is a major concern for me.
probably i will put a Hartzell C/S 72" 2 blade on it but i'm not sure about the way to go... metal blended airfoil or composite. i was mailing hartzell and they said that (beside some advantages in efficiency and thrust) in general composite props tend to be more quiet than their metal counterparts. but as far as i understood it, they didn't make further researches on this issue yet.
could somebody add a little bit of light to this....?
Thank you... and a happy 2010 (just don't die this year)!
Kay
Huntsville, Alabama