Quote:
Originally Posted by some_other_dave
No, it is not. You are starting from this assumption, and so you go wrong from the beginning.
It is not a square-rigger, it is much more like a modern sailboat with triangular sails. Which can and do sail faster than the wind speed. And the sails (the propeller blades) meet the wind at an angle.
-soD
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1) Okay.
2) So, the vehicle has no wind energy capture capability except for the blades?
3) And the blades power the wheels to actually propel Blackbird?
4) And without any change to their configuration, the energy-capturing 'turbine' blades somehow become a perfect, thrust-producing propeller?
5) And simultaneously, the perfect 'propeller' is also a perfect 'turbine', and not only maintains velocity, but increases velocity, due to the airfoil profile, with no momentum added to the system?
6) As, the cart is exceeding the local air velocity?
7) The Universe makes special physics for Rick Cavallero, but no other?