Why not tailfins and aerodynamic control surfaces for big offshore boats?

[Franklin]

http://www.nasm.si.edu/research/aero/aircraft/convair_seadart.htm

120 knots on the ocean in 1954.

http://www.faqs.org/docs/air/avcmast.html#m2

http://www.answers.com/topic/f2y-sea-dart

http://www.taliaferro.net/waltermiddy/page3.html

[marshmat]

Some new raceboats are starting to incorporate advanced aerodynamics- no moveable control surfaces yet, but the trend is beginning...