The Murphy Builders Site

Bruce 375R writes,

I'll have to stop in and make an appointment to have my prop dynamically balanced. I don't know what else it could be but and I think it should not have as much vibration as it does.
Bruce 357R

Bruce, I follow the Yak List. I am using an M-14 in my Moose same as the Yak.
I just came across the following which, though pertains to the Yak, may be of interest.

Good luck,
Don Boardman

--> Yak-List message posted by: "Frank Haertlein" <yak52driver@earthlink.net>

As regards prop vibes and balancing, I created the following web page
for everyone's benefit.
http://home.earthlink.net/~yak52driver/balance.html

It goes into detail on balancing props and gives as an example the data
collected when my own prop was balanced. The graphs depict before and
after data as well as data collected throughout the RPM range used for
balancing the prop. I hope it helps!
ENJOY!

Frank
Chino
PS There is some excellent wording by Dennis Savarese as well.......

Bruce,
I am not sure which prop you are running. If it is the two blade Russian V-520, then it probably needs a good static balance in two planes. To do it properly, the blades must first be made to weigh the same and then balanced in the horizontal and vertical plane and then checked at various pitch stops. The blades are so wide that any different weight distribution from leading edge to trailing edge will affect the balance differently in different pitch positions. Over the years we have found that is the only way to solve the vibrations on them.
George Coy
<![if !supportEmptyParas]> <![endif]>
-----Original Message-----
From: murphy-rebel@dcsol.com [mailto:murphy-rebel@dcsol.com]On Behalf Of Don Boardman
Sent: Monday, October 14, 2002 8:42 PM
To: murphy-rebel@dcsol.com
Subject: Re: Rebel on floats/prop balancing
<![if !supportEmptyParas]> <![endif]>
Bruce 375R writes,
I'll have to stop in and make an appointment to have my prop dynamically balanced. I don't know what else it could be but and I think it should not have as much vibration as it does.
Bruce 357R
Bruce, I follow the Yak List. I am using an M-14 in my Moose same as the Yak.
I just came across the following which, though pertains to the Yak, may be of interest.

Good luck,
Don Boardman

--> Yak-List message posted by: "Frank Haertlein" <yak52driver@earthlink.net>

As regards prop vibes and balancing, I created the following web page
for everyone's benefit.
http://home.earthlink.net/~yak52driver/balance.html

It goes into detail on balancing props and gives as an example the data
collected when my own prop was balanced. The graphs depict before and
after data as well as data collected throughout the RPM range used for
balancing the prop. I hope it helps!
ENJOY!

Frank
Chino
PS There is some excellent wording by Dennis Savarese as well.......