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DAquaNut(at)aol.com
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 Posted: Sun Feb 19, 2006 12:11 pm Post subject: Kolb-List Blade tracking |
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Group,
I have noticed vibration while flying my Firefly. More at certain speeds
than others. While I think that this is the norm I am not sure. Is it
necessary to track the blades of an I.voprop and how would you go about doing it .I
looked in the archieves and found nothing.
Ed Diebel (In Houston)
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Eugene Zimmerman
Joined: 10 Jan 2006
Posts: 392
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| Posted: Sun Feb 19, 2006 1:14 pm Post subject: Kolb-List Blade tracking |
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Ed,
Tracking is not normally a problem with the IVO prop. Because of the
IVO's flexibility the centrifugal force above idle RPM will pull any
slight tracking differences to zero.
There is one weakness that the IVO does have though that can affect
its smoothness.
Because of the way pitch is adjusted by twisting the steel rod inside
the blade, it is possible that both blades will not always twist the
same amount causing a pitch difference between blades. This is
especially so if the pitch is changed to near its extreme position
from neutral. This can sometimes feel like a vibration due to a
weight imbalance at some power settings.
With a good protractor like used to adjust the Warp prop you can
easily measure the pitch of each individual blade. If the difference
is slight it can be adjusted simply by twisting a blade slightly by
hand a bit. Problem is it will probably not stay but eventually
return to its original pitch.
On Feb 19, 2006, at 3:10 PM, DAquaNut(at)aol.com wrote:
| Quote: |
Group,
I have noticed vibration while flying my Firefly. More at
certain speeds
than others. While I think that this is the norm I am not sure. Is it
necessary to track the blades of an I.voprop and how would you go
about doing it .I
looked in the archieves and found nothing.
Ed Diebel (In Houston)
|
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kolb-List |
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