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Given that we only discovered and built dead downwind faster than the wind vehicles in the 2000s I wouldn't be so sure. And for being relatively simple classic
by kosievdmerwe 6y ago
Given that we only discovered and built dead downwind faster than the wind vehicles in the 2000s I wouldn't be so sure.
And for being relatively simple classical physics it was very controversial, with even some physics professors denying it was possible.
- roflc0ptic 6y agoWe did that? That sounds awesome. Source?
- deleted 6y ago[deleted]
- kosievdmerwe 6y agoSome sources: https://www.lockhaven.edu/~dsimanek/museum/ddwfttw.htm https://www.lockhaven.edu/~dsimanek/museum/ddwfttw.htm https://en.wikipedia.org/wiki/Blackbird_%28land_yacht%29 https://en.wikipedia.org/wiki/Blackbird_%28land_yacht%29 The search term to use is "DDWFTTW" It's a bit confusing, but some important points are: * It only works if you're on land, you can't have a flying device that does this. * Boats can sail faster than the wind speed, but have do so at an angle to the wind. (Just to convince yourself that this isn't completely strange). * The wheels rotation on the ground is what drives the propeller, not the other way around.
- ratsforhorses 6y agoJust thought I'd add a relevant link as the phrase "dead downwind" caught my eye https://en.m.wikipedia.org/wiki/Blackbird_(land_yacht)#:~:text=On%20July%202%2C%202010%2C%20Blackbird,the%20speed%20of%20the%20wind https://en.m.wikipedia.org/wiki/Blackbird_(land_yacht)#:~:te....
- SigmundA 6y agoFrom Wikipedia: "After proposing the vehicle's design, and presenting the analysis to demonstrate its viability, the Blackbird team learned that others had previously conceived and built similar designs—most notably aerodynamics engineer Andrew B. Bauer, later with the Douglas Aircraft Company, built and demonstrated such a vehicle in 1969, based on an analysis presented in a student's paper from some 20 years earlier."