I just acquired a Piper Cub with floats, and was wondering what would be the best way of mounting the radios on/off switch to keep the plane water proof. I normally use a Dubro or Great planes switch/charge mount , but not sure if that would be appropriate for a float plane because of the opening for the charge plug. What would work best? Thanks.

Get the same DuBro switch mount without the charge jack. You'll have to remove the wing or hatch to charge but it'll be water resistant (mount the nylon pushrod holder with a silicone seal and pack the pushrod tunnel internally with vaseline and it'll be waterproof)

Don

I use the regular Du-Bro Switch/Charge mount.

Just smear a little vaseline around that charger door, and you'll be fine.