Recent content by yn3

  1. Y

    Wind Power Vehicle Traveling Down Wind Faster Than The Wind

    "We never ran the vehicle in anger in full 45 cross, but we have data showing ~2.5x in sustained 30-40 cross." That's seems to support my claim, if I know your transmission efficiency and the maximum down the wind speed ratio, I know it is around 3.5 but would like to know your simulation...
  2. Y

    Wind Power Vehicle Traveling Down Wind Faster Than The Wind

    Surprise surprise: That is if my calculations are true, and rest assure that I am and will double checking them for a while. The propeller wind car can do extremely well in side winds. Assuming that the propeller shaft can be rotated sideways, (which is not possible in the current...
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    Wind Power Vehicle Traveling Down Wind Faster Than The Wind

    "Once at an angle, a standard sail setup would be better" This is a qualitative statement. What angle do you have in mind 1deg? 10 degrees? However, let's wait and see what other thinks.
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    Wind Power Vehicle Traveling Down Wind Faster Than The Wind

    "That of course is the the highly political Peace prize, and not for physics or the other sciences. " Indeed so but the guy, according to his bio is Professor of Nuclear Engineering and Ph.D (1998) & MA (1986) Harvard University (Physics), AB (1984) Cornell University (Physics) The AB is in...
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    Wind Power Vehicle Traveling Down Wind Faster Than The Wind

    Well, the "half-decent brain can ponder this question for a few minutes and realize that YES" seems at that point like http://en.wikipedia.org/wiki/Egg_of_Columbus" . I personally communicated with two distinguished professors, one of which share the Nobel Prize with Al Gore and is currently...
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    Wind Power Vehicle Traveling Down Wind Faster Than The Wind

    Thanks, you are right I am very familiar with Rick blackbird. NALSA actually ratified a 2.8X speed record on his behalf, you can see it in http://www.nalsa.org/index.htm Note that unlike sail car, prop-turbine wind car does not tack the wind and thus a race of these cars could take place on a...
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    Wind Power Vehicle Traveling Down Wind Faster Than The Wind

    "There are several past threads on the subject containing thousands of posts" Indeed so, and all the previous threads are closed, at list one of them because of improper language. My experience with published theory on this subject suggest that I can contribute to the matter. I hope that this...
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    Wind Power Vehicle Traveling Down Wind Faster Than The Wind

    There was and still is a hot debate on the matter of a wind power car that travels down the wind faster than the wind. As a part of larger interest in the subject I put the theory for this case, it can be found in my website https://sites.google.com/site/yedidianeumeier/" I welcome your comments
    • yn3
    • Thread
    • Power Vehicle Wind Wind power
    • Replies: 305
    • Forum: Mechanics
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