02-22-2018, 01:45 PM
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fly'em 'til they don't come back
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Join Date: Jun 2011
Location: Milwaukee, WI
Posts: 40
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WI-ROC / WrE / 2018 / Fin Glas
After a short break I am back on the WI-ROC build.
It's time to apply some fiberglass reinforcement to the fins.
The 3 plywood fins included in the WI-ROC have pre-beveled edges. This is an awesome feature that assures aerodynamic regularity of the shape on all of the fins. The application of FIBERGLASS CLOTH and the ZEE-POXY FINISHING RESIN adds structural strength. The fiberglass is not a requirement but I added it to the build process to be consistent with the body tube finish described above. I cut the light weight fiberglass cloth to the basic shape of the fins. After a light coating of the resin on the plywood, I laid the cloth down and smoothed it out using a sponge brush. Then applied a light coat of resin over the cloth. Fiberglassing fins is a process that I don't normally do. So it is actually in keeping with the"experimental" aspect of this build. It's another part of the learning process. I'm glad that I remembered to use vinyl gloves because this is a messy job. I set the fin /tube section aside to cure. I will address the fillets and sanding of the fins next.
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