Kiwi,
I used to keep up with this stuff when I was living in Bill Koch's hometown of Wichita, Kansas USA (you may remember him as a very wealthy Americas Cup contender some years ago) and travelled to San Diego often. Knew a couple of serious sailors there that took the time to show me some of the stuff only insiders got to see.
Now I noticed that we have it covered on cable TV, but it is a bit surprising when you see 'boat racing' featured, change channels, and see sails, not roostertails. sleeping
With all these v-drives for sale without engines, maybe sails would be just the thing until some engines get built!
What kind of aircraft engineering do you do? Used to talk to a guy on ham radio that was in Christchurch that was a pilot like me. Just wondering. Besides this may be the only reply you get on this topic in this forum!
DaveA