RCU Forums - View Single Post - Q500 wing with no SPAR ??
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Old 04-09-2019, 01:43 PM
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Depends in part on the weight of the glass used. A chunk of 6 ounce would prevent things from coming apart quite well.

There are many models out there with sparless foam wings. In your case the sheeting takes on much of the job of the spar. Another trick is to run a strip of fiberglass re-enforced packing tape down the length of the bottom of the wing where a spar would normally be. One continuous run tip to tip then sheet the bottom.

And I'd use 30 min epoxy for the joint and the glass.