Tires are mains - 500-5 Desser Monster Retreads, 8-ply, inflated to 60 psi nose - 10x3.50, Tire Specialty of America, 4-ply, inflated to 35 psi Note - at full inflation and tirtes as new, the bottom of the prop extension is 45" above the level surface. After moving to new engine mounts, __ inches.