Water weighs 62.4 pounds per cubic foot, or 0.577 ounces per cubic inch.
EACH float should displace at least the entire weight of the plane.

So, if you have a .40 size trainer that weighs 7 pounds, the floats should displace 388 cubic inches.(7 x 16 x1/.577 x 2)

32" long, 3" wide, 3" deep x.7 shape factor (they're tapered)


Cheat a little wider if U can. Tapered sides, 2 1/2" tops, 4" bottoms will pop U up faster.


Engineering is my life.