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Rob's REBVAIR Project
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Date:  9-11-2015
Number of Hours:  2.00
Manual Reference:  
Brief Description:  Cowl Inlet Rings: Part 2

So here we see the rings being dressed for permanent attachment to the nose-bowl. The edges are contoured for aerodynamics, and more importantly, I ran a channel around the outside edge with my tablesaw, so the epoxy would have a good mechanical grip on the ring.

The typical way other corvair flyers have done this is to cut the rings in half, gluing one to the top and bottom half of the nosebowl. However, there's a supplier fo such rings for RV aircraft that recommends an installation that temporarily holds the rings in place as long as the nosebowl is mated. When the two halves are separated the rings just fall out of their locations. This appeals to me mostly because it saves me the hassle of having to cut the rings and keep them properly aligned as I epoxy them into place. Also, having the rings cut reduces their strength to some extent.

So I elected to wax them up (mold release) and epoxy them in place, being careful to not glue the two nose-bowl halves together. But before doing that, I had to test the 15-year old epoxy I had left from my kayak-building days.
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