ORIGINAL: SCALECRAFT
In the pic in post #5:
Also note that the landing gear in the pic with the model on its gear are angled out a bit and not perpendicular to the ground . Leading one to think that a 90 degree sweep on the gear will work. As displayed by pic.
Steve
Got no idea if the gear on the model in the pic is 90 or 80 (gear designed for a P51), but it's certainly not perpendicular to the ground is it. Putting any gear in that doesn't take the dihedral into consideration is going to give one of two problems, one of which is shown by that pic.
Here's a pic of a fullscale Spit with it's gear down. It's obvious the sweep is greater than 90degrees. If the gear in the model is placed in the straight section of the wing, the part without dihedral, it really will need to sweep more than 90. Otherwise the wheels will be hanging out when they're up if they only sweep 90degrees. If the gear in the model is placed in the dihedraled part of the wing, and they're 90 degree gear, then when they're down, they'll be angled out a fair amount. Either way the gear is installed, the sweep has to take the dihedral into consideration.