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Author Topic: Any Way to Identify Size of APA Fittings?  (Read 2539 times)
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Trade Count: (+17)
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Posts: 142

Location: Somerset County NJ

« on: June 24, 2011, 12:52 PM »

Most if not all of my kites have APA rubber fittings.  I do not see any size identification on them.  My spare ones are stored in sandwich bags which clearly identify the fitting size. 

Is there a way to identify the size or does everyone just do a fit test until you find the correct size?

Allen Carter
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Location: Half Moon Bay, CA

« Reply #1 on: June 24, 2011, 02:26 PM »

There aren't that many different sizes. Easy to split them by pultruded and wrapped. Wrapped LE, then pultruded or wrapped spreader. From there you have maybe two or three choices. I used to remember the published sizes and compare them to common spar diameters, but now I pick two that look right and one of 'em usually is. Even is I kept them in labeled bags "Size D" I'd have to remember which is Size D. Easier to glance at the size of the holes.

I rarely replace one on a pultruded kites, so I have all my small spares in a separate bin.

Allen, AKA kitehead
Will Sturdy
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Location: The Boondocks, Maine

« Reply #2 on: June 24, 2011, 04:18 PM »

I find it easier to just know what size should go in each location than trying to id stretched out holes.

CA for Pxxx leading edge with xPT or poltruded spreader
C for Pxxx leading edge and nitro, G-force, or aerostuff spreader
For lower spreaders I often use D or DB connectors because the pressure on most kites being always against the C-clip don't require a super tight fit on the spar.
TAPA W for UL's with xPT or poltruded spars
For lower spreaders I often use D or DB connectors because the pressure on most kites being always against the C-clip don't require a super tight fit on the spar.

Standoff fittings are .25 for nitro, G-force, and Aerostuff. .200 for xPT spars.

YMMV, tightness of fittings is to some extent a personal choice.
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