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Old Aug 13, 2013, 09:07 PM
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United States, CA, Sacramento
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Help!
RFM Offset Yoke & Spinner

I have & setting up a RFM Offset Yoke & Carbon Spinner with RFM 17 x 13 prop.

Does the Offset put more pitch in the Blades?

How do I know if it's a +5 or +7 degree Offset?

Thanks, Paul.
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Old Aug 14, 2013, 03:14 PM
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Harbor City, CA
Joined Oct 2003
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I think that you may be confusing offset with twist in the yoke, they are two separate things I believe.

The offset, when the yoke is an "S" shape when viewed from the front, is simply to make the prop blades sit flatter against the fuse, making the folded blades more streamlined than what they would be without the offset. F5B planes use these frequently. It doesn't change the pitch at all

Twist would make the blades pivot not in line with the fuse, so for a high performance plane, you should avoid it I would think. I'm not sure about this last point.

A call to Soaring USA should get you the answer. Talk to Gary or Bob.

R,
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Old Aug 14, 2013, 04:02 PM
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United States, CA, Sacramento
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Quote:
Originally Posted by target View Post
I think that you may be confusing offset with twist in the yoke, they are two separate things I believe.

The offset, when the yoke is an "S" shape when viewed from the front, is simply to make the prop blades sit flatter against the fuse, making the folded blades more streamlined than what they would be without the offset. F5B planes use these frequently. It doesn't change the pitch at all

Twist would make the blades pivot not in line with the fuse, so for a high performance plane, you should avoid it I would think. I'm not sure about this last point.

A call to Soaring USA should get you the answer. Talk to Gary or Bob.

R,
target
Thanks, target
I've been doing my research.
Paul
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Old Aug 14, 2013, 07:03 PM
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Harbor City, CA
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I saw that Paul.
Its interesting that the terms seem to be the opposite to what would be logical.
You have forced me to learn about something I would never have, and for that, I thank you! :-)

R,
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Old Aug 15, 2013, 12:47 AM
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Keep learning my son, I always do.
pauly
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