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06-28-2010, 01:42 PM
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Join Date: Apr 2006
Location: Vancouver island, BC Canada
Posts: 385
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Crow attach bracket
Just ordered a set of harnesses, and discovered they now use brackets with a 7/16" bolt hole.
Is there a simple way of bushing 7//16" to accept a 1/4" bolt for the lap belts and 5/16" bolt for the crotch? I don't think I'm going to find washers to press into the holes.
Otherwise I guess I'll be drilling new holes in the chrome-moly brackets. Ouch
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Jim Green
RV7 tip up
IO360 Whirlwind 200RV
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06-28-2010, 01:47 PM
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Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
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I drilled new holes in the longer brackets that I asked em for...
They drilled like butter, a little 3 in 1 oil, good bit, and low speed and it was no problem...
I drilled the hole with proper edge distance between the original and the slot for the webbing...
Last edited by Brantel : 06-28-2010 at 01:50 PM.
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06-28-2010, 06:09 PM
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Join Date: Jun 2006
Location: Ohio
Posts: 1,686
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Check out Iron's post #8 on this thread. He used washers to bush the larger hole. I plan to do the same when I get to that step.
Good luck!
http://www.vansairforce.com/communit...highlight=crow
Brent |
06-28-2010, 09:43 PM
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Join Date: Aug 2006
Location: Twin Falls, ID
Posts: 683
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Or you can send them back and ask for 1/4" hardware. I'm sure they will do it for free and turnaround time is minimal. Don
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RV 7 N212MD Flying as of 12/22/2007
Backcountry/TCOW Super Cub flying 03/12/2011
Next project?
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06-28-2010, 11:27 PM
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Join Date: Apr 2006
Location: Vancouver island, BC Canada
Posts: 385
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Thanks for the input.
Quote:
Originally Posted by yakdriver
Or you can send them back and ask for 1/4" hardware. I'm sure they will do it for free and turnaround time is minimal. Don
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The brackets with the 1/4" holes are quite short and have their own problems with interference.
Quote:
Originally Posted by panhandler1956
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Yes, the washers would work great for 1/2" holes, but I'd have to enlarge the existing holes from 7/16" to 1/2". May not be the easiest solution.
I don't have my belts yet so I haven't seen the dimensions of the brackets, but I think I'll drill new holes. Brian seemed to find it OK so perhaps chrome-moly steel isn't so scary after all!
__________________
Jim Green
RV7 tip up
IO360 Whirlwind 200RV
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06-29-2010, 05:35 AM
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Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
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Those are too short and the webbing will rub the brackets that you built into the plane...Also the crotch strap one will really be too short and the webbing can get cut by the relief hole edge built into the anchor system.
These longer ones work great!!! Just drill whatever size hole you need in the meat between the webbing hole and the original bolt hole. They are not bad to drill...
Quote:
Originally Posted by yakdriver
Or you can send them back and ask for 1/4" hardware. I'm sure they will do it for free and turnaround time is minimal. Don
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