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I made one with a 38" span. It flew good except the wing unexpectedly folded. it may have a glue joint loosen exposing the spars to 100% of the stress.

If you make the wing larger consider a larger vertical stabilizer.

IIRC I used two layers of pla for the fuselage.You might consider more print material in the fuselage on your next one.

since the material is more flexible be careful with the elastic bands deforming and tearing the trailing edge of the wing. I would advise that you don't assemble the wing to the fuselage until you are actually going to fly it.