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Correct lift theory-discussion

  1. Feb 26, 2017 #1

    Doug Mclean talk about common lift misconceptions.I agree with most of what he said but he claims that downward air flow "downwash" do not exist because integral is zero.

    I dont agree with this statement,leave mathematics and see what happening in real world.
    Downwash evidence:

    What do you think about that and which lift theory do you support?
  2. jcsd
  3. Feb 26, 2017 #2


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    How about a timestamp given it's a long lecture?
  4. Feb 26, 2017 #3
    41:00 - 47:00 min
  5. Feb 26, 2017 #4


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    He doesn't say that. He just says that the downward momentum doesn't accumulate in the atmosphere as a whole. The increased reaction from the ground cancels it.
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