I would add a 1/8" ply or light ply dihedral brace that the retract mounts glue to. Or maybe use 1/16" ply and put one in front and one at rear of the retract mounts. since they are small enough to add little weight. Might be a little overkill, but it's there for the bad landing that would have trashed the plane otherwise. It depens on safety maring you are looking for.
You could get away without the brace, just rely on the fiberglass around the center. Only you know how your landings and field are
Don
ORIGINAL: viva_peru
Hello Don,
I have been daydreaming about the mini Curare for the past few days. I am considering adding the E-Flite .10 sized electric retracts to the plane just because it would be so cool. With that in mind, would I need to add a diehedral brace so that the landing gear anchors can tie to it? Or, adding a couple of 1/16 or 1/8 ply pieces which box the landing gear anchors onto the wing suffice? The box would probably go through the thickness of the wing and act as load spreaders.
Thanks,
Teo