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  1. phantomjock

    Internal Body Aerodynamics

    Where's That HORSE? My purpose in using the steering wheel analogy was to demonstrate; it means little whether force is applied to the left or right side, up or down tangentially, the result is the same. That result is at the steering shaft (think point of rotation). And the direction of the...
  2. 1760787359385.png

    1760787359385.png

  3. phantomjock

    Internal Body Aerodynamics

    Some Google-foo:
  4. 1760706602205.png

    1760706602205.png

  5. phantomjock

    Internal Body Aerodynamics

    So - OK. I had to have a think about it... Maybe. And - It Depends... Here is a quick and dirty diagram: Notes - The Calipers are rigidly attached to the Upright - neither shown for clarity. The Clamping Force vectors are shown as Bf - FWD and Bf - REAR, with the force vector direction shown...
  6. 1760700086854.png

    1760700086854.png

  7. phantomjock

    Internal Body Aerodynamics

    Yeah, I just finished a 2 day experience with ChatGpt. It was useful and saved me a bunch of research time. But, it seems like the tagline: "AI responses may include mistakes. " is often appropriate. Cheers - Jim
  8. phantomjock

    Internal Body Aerodynamics

    rtj - Once again - "You made me look!" You'll have to bring the receipts. I can't find a credible reference. I did a dive on TOO many links to be convinced. - As we'd say: Prove me wrong!/Change my Mind!* EXCEPT for one case. That would be; INBOARD brakes mounted to the CHASSIS. In that...
  9. phantomjock

    Misc Vintage Racing Clips

    ALWAYS a Beauty. One of "ours?" Like it - A LOT. Cheers - Jim
  10. phantomjock

    Misc Vintage Racing Clips

    My guess - lowered the chassis and kept full range of suspension movement? Looks like a "mini" spoiler? NO Wing? Maybe saw a Diffuser in the last frame or 2. Belly pan? Full qualified cage? Not quite a GS - Could be much- much fun. Cheers - Jim
  11. phantomjock

    Don’t see these much anymore

    Pappy - You'll need a bigger garage! Cheers - Jim
  12. phantomjock

    Internal Body Aerodynamics

    Looking forward to the post and any details. Link? I missed the Duntov brackets - I'll go have a peek. Cheers - Jim
  13. phantomjock

    How many times have you thought "How did I mess that measurement up?"

    Makes me wonder; how close the 40" "yardstick" from HF is. Also the Tape-on measurement guides you can purchase for the bench. I suppose if you picked one, and just used it every measurement would be "Equally off" - UNLESS the scale changes as the length. That would be BAD. Cheers - Jim
  14. phantomjock

    Weight reduction: Running out of ideas.

    Caught my interest. Best I could find (short search) was for C6 Corvette. Had to zip. Just about 100 items. Might be vaguely interesting/useful. Maybe more out there. I used to have an uprights list from the Locost Build sites, etc. Cheers - Jim
  15. phantomjock

    EXTERNAL AERODYNAMICS

    Looks great - Showroom Quality! Hope it hols up to some track time. I guess the extension is "replaceable"? Again - inspirational Pappy. Thanks. Cheers - Jim
  16. phantomjock

    Weight reduction: Running out of ideas.

    Just a thought - and across town: On FB. listed as John Chase for $200. Looks like could use some work - but lightweight? Disregard - weight more than the "79 seat - maybe. Cheers - and happy hunting! Jim
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    1756680784435.jpeg

  18. phantomjock

    Weight reduction: Running out of ideas.

    I've been working the floors - drooping them about 2" for seating height. Reg says; a minimum of 2 inches from top of the helmet to top for roll bar/cage. But my "skull bucket" would still "tap" the cage - so I am dropping the floors. [Don't raise the bridge - Lower the Water -obscure movie...
  19. 1756516953674.jpeg

    1756516953674.jpeg

  20. phantomjock

    EXTERNAL AERODYNAMICS

    I recall that being referred to as "Technique" - not "Procedure" in flight school. It is a very useful skill to keep in your tool kit! The best ones are FUN too! Cheers - Jim
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