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Old 11-25-2020, 04:13 AM
Richard Connell Richard Connell is offline
Join Date: Aug 2006
Location: Sydney Australia
Posts: 236
Default Note 2 on the RV7 drawing

In my experience the most slop came from the length of the bushing being too long. The stick then slides fore and aft in the bushing by a couple of 0.001 which feels like much more at the top. When they say “slip fit” you should really strive to get it all super close.
I love the bearing improvement in the -14.
RV7 VH-XRC Sold :-(
RV10 in progress.
Sydney, AUS
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Old 11-25-2020, 08:56 AM
lr172 lr172 is offline
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 5,659

Originally Posted by BillL View Post
The brass bushing is standard 3/8" stock. Mine was too small to fit the drill reamed stick. I bought a second stick and bushing and they were sloppy too. I bought some 1/2" dia brass and machined it to fit the stick. I suggest a slight spool shape where the last 1/2" or so is the only part that contacts the stick tube, as the tube was not straight either. Be aware that tightening the bolt though the brass bushing can compress the length and expand the diameter.

It is just not a precision part, but to Vans credit, it may not be any issue when flying either.
I had to do the same to get rid of the slop. Key issue was out of round issues in the stick and too small of a bushing.

N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
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Old 11-25-2020, 11:18 AM
BillL BillL is offline
Join Date: Sep 2007
Location: Central IL
Posts: 5,702

Originally Posted by lr172 View Post
I had to do the same to get rid of the slop. Key issue was out of round issues in the stick and too small of a bushing.

Mine too, out of round, too large and not straight. Each end different too. Just not enough room for many design options.

Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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