Jaguar Poster on E-Pace Barrel Roll Stunt Summary

News, notes, questions on the McHenry invented James Bond Astro Spiral Jump Stunt
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MSI
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Jaguar Poster on E-Pace Barrel Roll Stunt Summary

Post by MSI »

Recently came across this poster I had saved to my phone back in 2017 which was created by Jaguar on the stunt.
Jaguar Summary of the Stunt from Web reduced size.png
Jaguar Summary of the Stunt from Web reduced size.png (87.54 KiB) Viewed 55 times
I now actually looked at it and some interesting items:
  • 765 hours of 'engineering simulation time'??
    • what's that all about? simulation & engineering time?
    • The simulations we performed were at max a week of our time so 30-40 hours max
      • and then the actual simulations are faster than realtime so of that 30-40 hours manpower time, maybe 5 min total actual simulation time??
        • The rest of the time it was review, refine, check, compare...etc
      • There was a lot of wasted time traveling and standing around waiting on the stunt team to modify the vehicle (we told them to do many things pre-test time but they didn't so a LOT of wasted time)
        • Also,the early tests were with a 'non rolling' device instead of caster because the stunt team would not/did not install a rolling caster (we even gave them one to install...but they didn't/wouldn't)
      • see discussion for notes on the stunt creation
    • Wonder where'd that "765 hours" came from?
  • 10 mm margin for error??
    • which they characterize as same diameter as a drawing pin??!!
      • ahhhh...maybe that ruler was in inches...they assumed it was metric/mm? 10 inches or so is about the correct margin of error...
      • maybe 10 mm for the scale model stunt! see the Spiral jump patent from 1974!
      • basically the stunt driver had to hit within 6" to 1 FOOT of the sweet spot which the Jaguar stunt driver couldn't do...
        • The initial test run at the London’s Excel convention centre one of the stunt assistants/understudies nailed it with soft perfect landing!
        • But then the main stunt driver couldn't hit the mark and repeat it and so it wasn't done live
  • 33 barrel roll tests
    • yes...there were...
      BUT
    • We only participated in maybe 13 of them
      • The tests we participated in were
        • wasted because no rolling caster (6 tests)
        • or with driver missing mark into bag landing (3 tests)
        • and (back to auto steer) only 3-4 tests were required to get the takeoff and roll correct and with simulation predicted landing ramp position
        • However because of a "secret change" by the stunt team to the vehicle suspension before the first ramp to ramp jump, it failed to land properly (see notes)
    • So then we were dropped from the team and the stunt team blindly wasted 19 tests!! trying to hit the mark and get the landing right on a dirt embankment
      • We could have easily helped them and accomplished a consistent landing in a few runs had they used us and maybe used some things to help the driver 'hit the mark'!) (lights? drive by wire? guide rails to ease car to sweet spot?
  • The time and Gforce items i will have to check into and get back to you on...
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