Shop our Airplanes Products Drone Products Sales
Thread Tools
Mar 01, 2005, 11:05 AM
It's been a while.
Daniel G's Avatar
Question

Reducing Noise


My wing warrior eZipper is pretty quiet most of the time, but when I fly full throttle it gets kind of noisy. I have heard that if you move the motor further away from the back of the wing the noise is reduced.
However, I can't move the motor further back than it is because my wing is already a bit tail heavy, so can I cut out some of the foam that is behind the prop to lessen the noise. Thanks.
Sign up now
to remove ads between posts
Mar 01, 2005, 05:26 PM
Registered User
Yes, that does help. I cut out a half-circle, about 4" wide on either side of the motor mount on my zagnutz and it reduced the noise dramatically.
Mar 01, 2005, 06:50 PM
It's been a while.
Daniel G's Avatar
Thanks for confirming my idea. I am going to try it as soon as my battery charges.
Mar 01, 2005, 06:52 PM
Average User
M Ashmore's Avatar
I did the same cut out on my Zagi. Made a big difference.
Mar 02, 2005, 01:51 AM
It's been a while.
Daniel G's Avatar
My charger lost the race against the sun.
But I made the cut outs and did some bench tests. The noise has significantly decreased.
Mar 02, 2005, 07:49 PM
Registered User
Dr_DOM's Avatar
I would be interested in seeing a photo if you have one handy.

Thanks
Mar 03, 2005, 12:49 AM
It's been a while.
Daniel G's Avatar
Here are some pics.
Mar 03, 2005, 05:34 AM
Registered User
Don Sims's Avatar
Cool idea. D Zipper, are the prop savers holding under all those RPM's??
Mar 03, 2005, 10:33 AM
It's been a while.
Daniel G's Avatar
Yes, the prop saver works great.
My dad had the same motor and the prop got caught in the grass when landing. The bell of the motor was bent slightly, so now I use a prop saver. I have only had the rubberbands break once after a rather hard landing.
Mar 03, 2005, 05:17 PM
It's been a while.
Daniel G's Avatar
I managed to do a flight test at lunch time.
The plane, which I used to be able to hear quite loudly 200 ft away, now is almost inaudible doing WOT 200 ft away. This experiment is a complete success.
Mar 03, 2005, 09:08 PM
Registered User
Dr_DOM's Avatar
Thanks for the photo. I can clearly see what I have to do to my zagnutz.
Mar 04, 2005, 12:09 AM
Registered User
dont forget to put fiber back over where you cut , i trimed mine (cuth through the fiber tape) and it split about 3 inches during a crash.
Mar 04, 2005, 12:19 AM
It's been a while.
Daniel G's Avatar
No problem DOM.

Tgmtgm I didn't have any fiber tape in that particular spot and have crashed often so I think I'll be fine.
Jun 09, 2005, 10:25 PM
BANNED!!!
soholingo's Avatar
Is this setup quieter than a tractor setup?

Jay
Jun 09, 2005, 11:11 PM
It's been a while.
Daniel G's Avatar
It's about as quite as my slowstick with a gearbox, and that's the only tractor I have.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Reducing noise on motors ? philgib Blimps 5 Oct 26, 2006 05:55 AM
Any way of reducing the noise of the XRB ? brian.pedersen Coaxial Helicopters 7 Oct 04, 2005 03:16 AM