n801bh(at)netzero.com Guest
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Posted: Thu Jun 12, 2008 6:02 am Post subject: Harmonic resonance from the new Eggenfellner Gen 3 driv e? |
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I local 7-A builder just switched his box to the new gen 3 one. It has noticable gear lash noise the last older style one didn't. Jan told him the same thing you commented on.
do not archive
Ben Haas
N801BH
www.haaspowerair.com
-- John Jessen <n212pj(at)gmail.com> wrote:
This might be of interest to some...from the GlaStar list:
= = = = =
I was reading the Eggenfellner list today and saw that several guys are now reporting harmonic resonance as a result of installing the new Gen 3 drive. It doesn't appear to matter what prop or engine you are using it with since both the 2.5 and 3.0 soobs and the Quinti prop and the MT props are involved.
So, guys are saying they are hearing a repeating beat sound about once per second.
Would anyone from this group that has installed the Gen 3 and been using it for a while care to comment on this? This sounds a bit concerning.
Jan Eggenfellner doesn't deny that this is happening, but says it can be solved with proper prop installation, balancing, keeping things from touching the cowl and so on.
So, I'm just wondering if this is just something that only a handful of guys are experiencing or ?
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