What engine for amphib floats?

[dholly]

If you use a 100hp 912uls you will need to feed it premium mogas. The 80hp 912ul is lower compression and can fly on regular unleaded without killer detonation if need be. Finding E-Free Premium at a marina or out in the boonies if you're schlepping gas in 5gal jugs is gonna be tough (I only have two E-Free Premium sources within 1/2hr of me here in upstate). The 80hp on a KF3, 4-1050 or even 4-1200 on Aerocet amphibs still provides good to excellent performance with a light airframe, empty weight is key. Also, just how much useful load you really want/need/are willing to accept for getting on the water. Hope you're not fat like me.

[Jfquebec]

Rotec R2800 will be crazy look on float....?...more heavy..more power...more torque...more noise...

With three blade IVOPROP In-Flight Adjustable Medium Propeller *
And 1320 or 1400 float ....