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Old 02-12-2018, 12:55 PM   #11 (permalink)
freebeard
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Hinge it at the top, bottom or mid-point (for minimum gaps).

http://i.ebayimg.com/t/RC-Model-Airc...uLQ~~60_35.JPG

This is for an R/C model airplane, but the construction is very simple. You could use four of them, or make you own.

Also — Retractable skegs.

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