ORIGINAL: JWyatt
Matt,
Thanks for the reply. I was told by the previous owner that the bearings had just been replaced, and in fact, they do feel very smooth. I'll check the pipe length when I get home. Thanks again.
Bryan
Oh yeah, I did not mention that the Summit III, an Ivan Kristensen design, Canada's most prolific aerobatic pilot and many time World Team participant, came in at near the end of the heavy "QUIET is BLISS" drive in pattern. The pipe settings I gave you were designed to quiet the models down, especially when coupled with a soft engine mount, but give nothing up in terms of performance. I hope your Summit has a soft mount in it
Engine rpms were down to around 10K give or take with the props I mentioned in the last post. The higher prop pitch produced the required speed and the lower rpm reduced noise to a "whisper". Well not really a whisper but compared to the small props we were turning at the kinds of rpms those engines were capable of (15K+ in the air) the new set-ups were very neighborhood friendly.
Regards,
MattK