RE: Can't get off the water with Float Plane
I had the same problem with a Great Planes PT 60. At first I was using a 70 size 4 stroke engine. If I had a glass smooth surface, it was hard breaking away from the water. The plane is a flat bottom wing design so I had plenty of lift. I then switch over to an OS 91 and that did the trick. I just needed a little more speed on the water to get the effect of the flat bottom wing for lift. Also remember, when you have floats on a plane not designed to use floats, you need the extra power for the added weight of the floats.
Larry