34th America's Cup, blog entry on cupexperience with schematics and description of Oracle Team USA's AC72 hydraulic lifting daggerboard adjustment system

From the following blog entry on the excellent cupexperience blog:

http://www.cupexperience.com/blog/2013/11/ac72-foil-control-system

Some people have questioned whether Oracle Team USA had a secret (and illegal) foil control system in their AC72 that helped them defend the America's Cup.

OTUSA has released drawings and photos of their system, which used a simple "mechanical feedback" loop to allow precise control of the daggerboard rake. Helmsman Jimmy Spithill had buttons on the wheel to rake the daggerboard fore and aft in precise increments of 0.5° giving him better control over lift for hydrofoiling.

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