Directly Downwind Faster Than The Wind (DDWFTTW) is a favorite topic of debate across the nerdverse for the combination non-existent answer and apparently conflicting nature of the question. "Wind only goes X-speed, how can you go faster? If you go faster don't you violate the law of conservation of energy?" That's usually the way the discussion goes.
When aerodynamicist Rick Cavallaro at Thin Air Designs heard about the debate causing nerd-rage all over the internet he decided to see if he could prove the naysayers wrong.
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