ellysbro

Scaling off the Drawings, I made the quarter scale main tires as 6 inch diameter, a readily available size. This would mean 24 inch diameter for full-size. Al Franklin found an ancient pair of 6-1/2 inch wheels in the back of a dusty shelf in a hobby shop. That would scale to 26 inch diameter for full-scale. He used these, and made his wheel wells in the fiberglass hull to fit, so my 6 inch wheels looked too small. I couldn't find any 6-1/2 inch wheels, so Al sent me one of his 6-1/2 inch wheels, which I used to vacuum form a couple of dummy half wheels for my seaplane-only model.

So for a 1/5 scale. it seems that 5 inch wheels would do nicely. Robart was offering wheels to go with their quarter scale retract gear, but I don't know the size.