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  1. Vigilant1 replied to the thread Measuring engine torque.

    Right, but also the bar will produce lower drag in thinner air at the same RPM. If we assume (I don't know) that the test club...

    Jun 18, 2019 at 3:39 AM
  2. Dave Hodges attached a file to the thread Wing weight.

    [ATTACH]

    1560825319642-1024542747.jpg Jun 18, 2019 at 3:35 AM
  3. Dave Hodges attached a file to the thread Wing weight.

    [ATTACH]

    1560825277236-2145044345.jpg Jun 18, 2019 at 3:35 AM
  4. Dave Hodges attached a file to the thread Wing weight.

    [ATTACH]

    1560825184416993665114.jpg Jun 18, 2019 at 3:34 AM
  5. pictsidhe replied to the thread The future in an aircraft charging system.

    Then you need a hefty heat sink and a Sterling engine...

    Jun 18, 2019 at 3:31 AM
  6. pictsidhe replied to the thread Mystery Bullet Shaped Aircraft.

    That's nothing new. I have several NACA papers on exhaust ejectors from the 30s or 40s.

    Jun 18, 2019 at 3:29 AM
  7. flyboy2160 liked proppastie's post in the thread Celera 500L (was: More Vaporware).

    if you stacked the passengers horizontal probably could get lots of passengers

    Jun 18, 2019 at 3:24 AM
  8. Little Scrapper liked Jay Kempf's post in the thread Mathematics / physics.

    I so struggled in school. Mainly because there was no relevance. Now I devour everything, math, physics, management, material science,...

    Jun 18, 2019 at 3:16 AM
  9. Hephaestus replied to the thread The future in an aircraft charging system.

    C'mon - if you're going to scavenge heat - why not do a small Sterling engine ;) exhaust on the hot side, outside air on the cool......

    Jun 18, 2019 at 3:15 AM
  10. Pops replied to the thread Propeller for the CX4.

    The first 32 hrs on the SSSC was with a 1200 cc, 40 hp VW engine with a 54"x 22" Culver prop. 3600 rpm on WOT on climb at about 550...

    Jun 18, 2019 at 3:14 AM
  11. pictsidhe replied to the thread Prop design software/books.

    I didn't think that I was going to be the first...

    Jun 18, 2019 at 3:13 AM
  12. Hephaestus replied to the thread Prop design software/books.

    https://pdfhall.com/why-the-s-curve-in-propellers-size_5b6f77c7097c4774128b465c.html Just so I don't loose it.

    Jun 18, 2019 at 3:10 AM
  13. TerryM76 replied to the thread Prop design software/books.

    I've got two copies of his book......not sure why, but I do have two. One copy At home and another on my book shelf at school. And...

    Jun 18, 2019 at 3:10 AM
  14. rv7charlie replied to the thread Keeping My Cool ....

    Flying solo, it would probably be a lot more efficient to use a water cooled vest, and circulate the ice water through it instead of the...

    Jun 18, 2019 at 3:08 AM
  15. Vigilant1 liked Pops's post in the thread The future in an aircraft charging system.

    That is what I was thinking. VW valve pans welded up from aluminum, Flat surface instead of rounded. Also could be used under the...

    Jun 18, 2019 at 3:07 AM
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