Your right, this can happen. I took a small piece of sheet metal and cut it into the shape below to preven wing from slipping back, and just cliped it in place in the fuselage with 3 binderclips so its quick & removable. It's a U shaped. If this isn't clear I can try a photo later. Had this about 2 years, no problem. Also use wing tape to prevent air getting under wing and into fuselage Good luck Mike

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