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Bob Turner
Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA
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 Posted: Wed Mar 24, 2010 5:25 pm Post subject: lower cowling fit |
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After trimming my lower engine cowling, I find that on the left side there is virtually no flat area left for attaching the F-1001Q hinge (or, a flat plate with nutplates). Instead, the aft end of the cowl, after trimming, has the fiberglass-foam-fiberglass sandwich area where the hinge should go. Right side has some interference but not as bad.
Anyone else have this problem?
Not sure how I could have trimmed too much; any less and it would be right up against the spinner, or worse.
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_________________
Bob Turner
RV-10 QB |
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AirMike
Joined: 27 Feb 2007
Posts: 514
Location: Nevada
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| Posted: Wed Mar 24, 2010 5:52 pm Post subject: lower cowling fit |
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You may have gotten a bad layup from Vans. The critical dimension is to keep the thing aligned with the spinner but not too close. Also you want to be sure that it is centered on the bottom with the exhaust cutout. You can screw around with the FAB after the main fitting is done.
You may have to grind down the "fat" part and rebuild the flange with new fiberglass and epoxy. You want that back edge to be strong and secure as it takes a lot of pressure and vibration.
A lot of the layups are not that great (oh lord how I know! ) but you always seem to be able to salvage the chop shop stuff that they send to you into usable quality parts - just a lot more work
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See you OSH '18
Q/B - sold. |
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jeff(at)westcottpress.com
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| Posted: Wed Mar 24, 2010 6:41 pm Post subject: lower cowling fit |
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I had a similar issue on my cabin top and had to carve out some
honeycomb and build up a new edge
Jeff Carpenter
40304
Sent from my iPhone
On Mar 24, 2010, at 6:25 PM, "Bob Turner" <bobturner(at)alum.rpi.edu>
wrote:
| Quote: |
After trimming my lower engine cowling, I find that on the left side
there is virtually no flat area left for attaching the F-1001Q hinge
(or, a flat plate with nutplates). Instead, the aft end of the cowl,
after trimming, has the fiberglass-foam-fiberglass sandwich area
where the hinge should go. Right side has some interference but not
as bad.
Anyone else have this problem?
Not sure how I could have trimmed too much; any less and it would be
right up against the spinner, or worse.
--------
Bob Turner
RV-10 QB
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=291630#291630
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