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« Last post by DA Miller on March 27, 2026, 03:25:37 PM »
Kam, I'm about to start applying fabric to my tail feathers and I've ordered 2 qtrs. of "neutral " color 3M contact cement. I remember you advising to add a few drops of lemon food coloring to make the glue more visible. How did that work out? Any problems? How many drops? Thanks for any help with this. Possum
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« Last post by pappyadkins on March 27, 2026, 06:22:27 AM »
Happy Friday! Let's work more on my above my head, between the wings, center, fiberglass fuel tank...
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« Last post by Kamcoman77 on March 26, 2026, 07:04:21 PM »
I did not put gussets on the bottom side of the front diagonal joint, only on the top side.
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« Last post by Brock on March 26, 2026, 05:51:49 PM »
Realized today that I had forgotten to place gussets on the bottom of the diagonals. Once I got to looking at the spot, it became clear that overlaping the front spar was not going to work as it would interfere with with the nose ply. Pictured is what I'm thinking of doing, can't overlap the spar-cap. What have others done?
The otherside of the diagonal is gusseted properly with the gusset overlaping the spar cap.
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« Last post by Kamcoman77 on March 26, 2026, 01:23:05 PM »
Definitely should use the sealer that Oratex recommends.
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« Last post by Shay King on March 26, 2026, 11:58:02 AM »
I checked with the UK Oratex distributor, he sent me a water based product called ’Ecoprime’. It’s not the same as the other Ekoprime that Aircraft Spruce has.
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« Last post by Kamcoman77 on March 25, 2026, 08:42:28 PM »
Water based urethane varnish is what I am using. The Oratex glue should be fine sticking to it. I buy a quart at a time and have no idea how much I will finally use. Since I buy it at Home Depot, I'm not worried about how much to buy. It comes in satin or gloss.
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« Last post by Brock on March 25, 2026, 06:04:36 PM »
My first wing is rounding the final bend and will be done soon. I suspect the second wing will take only a fraction of time to complete. So, my thoughts are turning to varnishing. Reading the many search hits on the forum I see that Poly Fiber EV400 is popular. Though most posts were a bit dated. Is this what recent builders have used?
Also, How much varnish should I order? I've no idea if I'll need a quart or four.
I'm planning on covering with Oratex (600 Antique). A quick measurement of my wings and tail seems to suggest it will will require about 320 sq/ft but that does not include any fuselage covering. I do plan to cover from just behind the seat to the firewall. What measurements (sq/ft/meter) have others found to cover their birds?
Any other comments?
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« Last post by Brock on March 24, 2026, 05:20:03 PM »
Today I cut the wing trailing-edges and glued on the first of the gussets to support the tailing edge. The cutting of the 1" x 3/8" x ~10' peice has been the subject to my latest day-dreams (er night-mares), how was I going to do it. Although I liked the 2X4 & carpet tape solution, I decided to just cut the wood without the 2X4. The magic bullet was this hedgehog-featherboard that I picked up to try. It worked like a charm, I recommend it. Here are a few pics.
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« Last post by Shay King on March 24, 2026, 10:57:23 AM »
I couldn’t hold the gusset spacers in place Leonard’s way by dimpling the gusset. I had some old JB weld and it didn’t hold very well, probably due to the zinc chromate I’d sprayed on when riveting the gussets. I welded little tabs onto the spacers and I think one rivet should hold them in place.
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