In response to requests, I truly diffidently attach The Meaning of Lift. I had wanted to spare Friam this stuff. It’s specialized, but just Newton and algebra, which I have often claimed folks need more of. But, but, but, I vehemently disclaim that I am a theoretician, or a scholar. Most Friamers know a lot more than I. They simply don’t do this stuff. I’m just a very practical designer who recognizes that a little learning is a dangerous thing. My work is simple-minded and functional, not words, but machines; operating on land, sea and air in a world where verbose BS quickly gets you eliminated, oftentimes “with prejudice”!
To make up for the equations, please enjoy the glorious photo. Taken some time ago, it is claimed to be the Lissaman 7808 airfoil, showing a SEAL floating into a perfect point touchdown. We developed these for extreme performance for Special Forces. Gratifying to meet satisfied customers! The paper states so, but I am not sure if this actually is my airfoil. Very hard to tell from this angle.
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