The Data King
There’s only so much your gut, or even a coach’s eagle eye, can tell you when it comes to assessing relative speed. Even if you can judge that one of two (presumably) identical one-design boats is the “winner” after a few minutes of straight-line sailing, how do you tell what variables contributed to the difference? These are the issues always on the mind of Mike Marshall, North Sails’ resident telemetry-testing geek. Over the past year, he’s been refining a testing system that doesn’t have the supercomputers the America’s Cup guys get to crunch the numbers with. When Marshall shows up for a session, everything he needs is right there in his portable Pelican case.
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