BARCELONA, Spain — Pounding on the pedals tucked inside his cockpit, David ''Freddie'' Carr is helping to keep Britain's yacht flying over the Mediterranean waves at the 37th America's Cup.
Carr is a member of the select tribe of cyclors, the ''cycling sailors'' almost hidden in the hulls of the powerful AC75 foiling yachts. These human workhorses use their strength and endurance to generate the hydraulic power needed to trim the sails and rotate the masts of their super-fast boats during the 20-minute-plus races.
If the cyclors' legs tire, the multimillion yachts can be left flailing as a rival cruises away.
''I honestly think it is probably one of the more extreme sporting environments that's ever existed,'' Carr tells The Associated Press after a recent race. ''I've been racing America's Cups for 20 years, so I've kind of been all the way through from early grinding into winches into this now. And it's not just the physical effort that you have to do. You have to stay switched on cognitively to kind of help sail the boat."
The efforts of Carr and his crewmates have put INEOS Britannia into the challengers final against Luna Rossa Prada Pirelli starting on Thursday off Barcelona. The winner will get a shot at defending champion Team Emirates New Zealand for the biggest prize in sailing.
Carr described what it is like to be mounted on a stationary bike inside a nearly airborne yacht: Your heart is pounding, you are hot and facing G-forces on the sharp maneuvers, you have to process data from a screen, all while ''building a tactical picture in your head'' because you are blind to the action.
''It is bizarre, unlike any other sailing I've done previously,'' Carr says. He knows how far the racing has evolved over the past two decades.
This is America's Cup No. 6 for Carr.