Here is a stand I cooked up a few years ago to hold my RC airplane wings.

I made around 5 to 6 of them and they are a good way to store the wings.

I keep them in the insulated attic above the shop, even with the intense heat of the florida summer the storage area does not get above 95ºF.

You can make it out of decently thick ply wood, 3/4″Ø wood dowels & some hot water pipe insulation