ORIGINAL: Skyhigh Bev
ORIGINAL: piper_chuck
ORIGINAL: lydo
Can you put floats on any plane?
Sure, just give it enough power!

Seriously, some planes are better suited to floats than others. For example, a Piper Cub on floats is cool, a Gee Bee on floats would probably be a nightmare.
Chuck,
so a 40 size Piper Cub with a Magnum 91 four stroke would be O.K. on floats?
Bev
Nah, needs more power!

Just kidding. Assuming the floats weren't made of rocks, it would be fine. My first float plane was a Kyosho Citabria. IIRC, it was a .30-40 size. I flew it with a Saito .45. While the vertical wasn't as good as without the floats, I don't remember feeling that it was underpowered. The extra weight and drag of floats increase the need to fly the plane on the wing and to manage the throttle on landings (i.e. don't just chop it and glide in).