Oboy now we're having fun!
Re: Biplane rig on a foiled cat: This is referring to Icarus II, sailed at Weymouth Raceweek in 1980-1984. Icarus II had 2 lengthened Tornado hulls of about 25 ft. and 2 Tornado masts (which broke regularly) when powered up at 28-29+ knots. It did well in Weymouth but less well in Brest where the waves were lumpier. The book is called "Icarus: the boat that flies", by James Grogono, pub 1987. Other speed rigs are shown, including Icarus I, Mayfly, and the mastless Tornado that went very fast but then tried to go to heaven - really- using a stack of power kites: no wonder her name was "Jacob's Ladder". I am not making this up. Another similar neat book is "FAsterFAster" by David Pelly. Lots of work is exhibited and documented fairly well in these books. Chemists know that it is prudent to examine the literature carefully before doing anything more than cheap "paper chemistry". I am not making this up either!
See other documentation thru links at "International Hydrofoiling Society" www.foils.com