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pmoore505(at)msn.com
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 Posted: Tue Aug 15, 2006 1:59 pm Post subject: Ivoprop Question |
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Leo,
What do you think of the Magnum Ivoprop? I am very near deciding on Ivoprop
for my O200 but have heard the Magnum blade may be too wide for 100hp and I
should stick to their medium blade profile. Since you're running a 912UL, do
you have any thoughts you'd be willing to share? I'll also be flying SP so
no in-flight adjustment for me.
Paul
XL - O200
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lrm(at)skyhawg.com
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| Posted: Tue Aug 15, 2006 6:56 pm Post subject: Ivoprop Question |
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You can take this for what it's worth. I just got an IVOProp. It shook
like a big dog, sent it back, got a refund, went back to my Warp Drive, nice
and smooth. The Harley has a lot of torsional vibration. especially at low
RPM, smoothes out at about 2000. That is due to the Harley having only two
very large pistons, "4 3/8" and high compression 10.1 to 1. Using a short
stiffer prop, 64" HP, seemed to solve the problem. The longer (70") lighter
built IVOProp seemed to have too much flex. The tip tracking was at least
1/2' deflection. I may have just gotten a out of balance IVOProp, because
it never smoothed out. Larry, N1345L, www.airhawg.com
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leogates(at)allvantage.co
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| Posted: Wed Aug 16, 2006 8:35 am Post subject: Ivoprop Question |
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I guess they don't work for all engines. I had mine static and dynamic
balanced, no adj. required. Just lucky I guess. On my Rotax 912 the
68" Ivoprop is VERY smooth from 1,800 to 5,800 RPM and QUIET.
Leo Gates
N601Z
LRM wrote:
| Quote: |
You can take this for what it's worth. I just got an IVOProp. It
shook like a big dog, sent it back, got a refund, went back to my Warp
Drive, nice and smooth. The Harley has a lot of torsional vibration.
especially at low RPM, smoothes out at about 2000. That is due to the
Harley having only two very large pistons, "4 3/8" and high
compression 10.1 to 1. Using a short stiffer prop, 64" HP, seemed to
solve the problem. The longer (70") lighter built IVOProp seemed to
have too much flex. The tip tracking was at least 1/2' deflection.
I may have just gotten a out of balance IVOProp, because it never
smoothed out. Larry, N1345L, www.airhawg.com
-----
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http://www.matronics.com/Navigator?Zenith-List |
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