Today's Message Index:
----------------------
1. 10:23 PM - prop balancing (clemwehner)
2. 11:16 PM - Re: prop balancing (JC Propeller Design)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
We're finally installing our GSC 68-inch wooden 3-bladed prop on a KF -IV-912.
The instructions from GSC said the prop blades are balanced at the factory and
are a matched and numbered set and the CG of the blades match. They say not to
alter the blades in any way.
However when we put the blades on the static prop balancer (the wire stand one
from Skystar), one blade is heavy. Weighing the blades reveals that one is indeed
about 1 ounce heavier than the others. Since they are a numbered matched
set, I question what to do next.
Do we try to add weight to the other two blades (varnish or something) to get them
to static balance. But that would change the CG of the blades and "alter"
them. What should we do?
Clem
Lawton OK
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=406117#406117
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: prop balancing |
Does it say they are dynamically balances?
one ounce is a lot of weight.
I suggest you Call GSC
"Varnish" is good for fine balance.
Jan
www.jcpropellerdesign.com
----- Original Message -----
From: "clemwehner" <clemwehner@sbcglobal.net>
Sent: Wednesday, August 07, 2013 7:23 AM
Subject: Kitfox-List: prop balancing
>
> We're finally installing our GSC 68-inch wooden 3-bladed prop on a
> KF -IV-912. The instructions from GSC said the prop blades are balanced at
> the factory and are a matched and numbered set and the CG of the blades
> match. They say not to alter the blades in any way.
>
> However when we put the blades on the static prop balancer (the wire stand
> one from Skystar), one blade is heavy. Weighing the blades reveals that
> one is indeed about 1 ounce heavier than the others. Since they are a
> numbered matched set, I question what to do next.
>
> Do we try to add weight to the other two blades (varnish or something) to
> get them to static balance. But that would change the CG of the blades and
> "alter" them. What should we do?
>
> Clem
> Lawton OK
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=406117#406117
>
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|