One of the really fun aspects of R/C is seaplane flying. Whether its adapting a set of conventional floats to your land-based model or building a “dedicated” seaplane, float flying opens up a whole new world to the R/C enthusiast. Coming in the January 2012 issue of MAN is my new “PS-36” which is easy to build, fun to fly, and uses inexpensive electric propulsion components; you could probably complete the project for less than $100,
even buying everything, less if you’ve got a few things already 
on hand. With a 36
” span, the PS-36 might fit into the “park flyer” category but it handles breeze-driven water surfaces with ease. For those of you landlocked, I’ve tested it repeatedly off grass and it works nealy as well but nothing beats seeing the wake of acceleration and the gentle lift off as you apply power. Give it a try, I’m sure you’ll love it! Remember, MAN, January 2012!
My clear yellow and red PS-36 (second proto type) is 18 oz. Powered by a Hacker A-20 which is only a 1022 kv motor. Even with this, power is 98 Watts using a 7×6 prop. Current is about 9.8 Amps on three cells 1300mAh and the motor turns about 10300 RPMs. the plane can take off dry grass with ease and flies just right for a sport plane using the rule of thumb of 100 Watts per pound of airplane weight. I am going to cut down an 8×8 e-prop to get a little more power although it flies just fine the way it is. I would recommend using a motor of about 1200kv or so. The only mod I made was to cut off the water rudder tip to keep it from catching on the grass. I am going to add a flip up water rudder.
A real fun airplane, easy to build and best of all… inexpensive. You will love it too.
Regards