[kach22i]

I've been thinking about the rear wake which follows the hovercraft up to shore.

What would cause that?

There is no bow wake, so the skirt must be catching/contacting at the tail end.

I thinking of removing what I've called "The Cape" (large anti-drag flap) under the stern of the craft. I will then put a new stern bag skirt on the craft, one designed to seal the rear corners by it's self - trapazoid in shape.


1. Yes, more power would most likely cure all ills.

2. Skirt used to be too stiff (it was bouncing), but no longer is after closing off some air feed holes. I may have to soften the bag skirt further still.

3. Too stiff of a skirt will not conform to irregular surfaces such as waves which in turn will cause air to escape, getting you all wet and losing lift in the process. I did get wet, and it was cold out there.

4. Because you've lost lift, the skirt drags in the water and this will lower forward speed. In the turn, air leaking out and getting you wet represents a loss of lift, which results in even more skirt drag, which slowed the craft down below "hump speed", the speed in which you fly over the water not through the water.

5. Hump Speed for boats is also called planing speed, it the point where it takes less energry to skip over the water than to plow through it, once you have climbed over the bow wave.