: True but this was a while back and I didn'y know anything about
: hydrofoil profiles so my one was a slab of cheap plywood with
: not much volume; it still worked. I built some proper foils with
: little ama floats on top to see if the hydrostatic buoyancy was
: useful but I never tested them - they must be several layers
: deep in my workshop by now!

I've always thought the bruce foils were facinating, not spent much time playing with them. I do have a book, I think published in the 50's or 60's about a real rocket scientist doing research with them, cool stuff. Testing was actually done in what is now area 51, in a seasonal dry lake :)

Bill H.