07-06-2013, 11:18 AM
(07-06-2013, 12:06 AM)gbanger Wrote: I wasn't having a dig mate... just using your noisy little plane to make a point to all the other members.
Gazz I fully understand and I agree we can't have noise complaints.
We have never had any before and we want to keep it that way.
The Dynamite will need some need some improvement in that area. It's all part of the development process.
There are a lot of things that can be done to reduce noise, In fact it takes quite a bit of power to make noise and that power is always better used creating thrust rather than sound energy.
A better prop and careful balancing will help, I havn't done that to the dynamite's yet.
Another thing that you might find surprising, and it surprised me, that potting the windings reduces noise a lot. It made a very noticeable difference to my RareBear, After potting with 5 min epoxy it about halved the sound it makes. Not that they are overly loud but there was a very noticeable reduction in sound. I aslo did the G160 in my big HK yak 55m and that stopped a lot of the crazy noises coming from that.
Another option is to go for a lower KV motor and use a bigger prop. We've seen Samste get good results by doing that with some of his speedsters.
“The knack of flying is learning how to throw your machine at the ground and miss.”
"When once you have tasted flight, you will forever walk the earth with your thoughts turned skyward, for there you have been, and there you will always long to return." ~Leonardo Da Vinci