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Old 08-26-2016, 05:25 PM   #1
DHC8
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Anti vibration mounts - DLE35


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Hey guys,

I am just wondering what your thought are on anti vibration mounts. I have a pair of DLE 35's that I am mounting on my Ziroli 101" B25 and I am just concerned with long term vibration effects on the plane. These are the mounts I have,

http://www.6starhobby.com/engine-mou...pairs-set.html

I have herd some say that it's not good for gassers to be mounted on anti vibration kind of mounts, but never found any definitive reason why not to use isolation mounts.
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Old 08-27-2016, 11:27 AM   #2
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Re: Anti vibration mounts - DLE35

I made my own mounts, somewhat like the ones shown. The vibration to the plane was drastically reduced.
The outer end of the stabilizer is where the most resonance is. You'd have to try it both ways to get a vision of what it really is.
Ever felt a broken motor mount on your vehicle.? This is what the frame of your plane feel. You lose a very few rpm of your motor, but nothing to worry about. It's just barely discernible.
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Old 08-29-2016, 09:47 AM   #3
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Re: Anti vibration mounts - DLE35

Quote:
Originally Posted by DHC8 View Post
Hey guys,

I am just wondering what your thought are on anti vibration mounts. I have a pair of DLE 35's that I am mounting on my Ziroli 101" B25 and I am just concerned with long term vibration effects on the plane. These are the mounts I have,

http://www.6starhobby.com/engine-mou...pairs-set.html

I have herd some say that it's not good for gassers to be mounted on anti vibration kind of mounts, but never found any definitive reason why not to use isolation mounts.
Hi, I have yet to use a vibration mount on any gas engine, the warbird group that I fly with out at WHAM do not use vibration mounts, I think this is going on 30 years of flying.

My GP Patty Extra 300S with a Brison 3.2 is on it's 10th year of steady flying with no vibration mount.

from http://www.earsc.com/HOME/engineerin...dex.asp?SID=61
"Isolation mounts reduce the transmission of energy from one body to another by providing a resilient connection between them. Selecting an improper mount for an application, however, can actually make the problem worse. The incorrect mount may reduce the high frequency vibration, but resonant conditions at lower frequencies can actually amplify the induced vibration"

cheers - ken k
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