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Thread: Interpretation of Rule B3.4.5 "bent tube"

  1. #11
    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Jakob:
    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by jemartin144:
    Im especially thinking of the harness' shoulder mounting bar. </div></BLOCKQUOTE>

    Guess what "b" is! </div></BLOCKQUOTE>

    If it is indeed for the shoulder harness bar, make sure you read that section thoroughly, B5.4 IIRC. We were thinking of doing this last year but the Rules Committee were pretty stringent on how to properly brace it, and the gains weren't worth the effort. Just make sure you do your homework.
    San Jose State University

    FSAE Chassis and Ergonomics Lead '12-'13
    FSAE Chief Engineer '11-'12
    FSAE Chassis Technical Lead '10-'11
    Formula Hybrid Chassis Grunt '09-'10

    "A designer knows he has achieved perfection not when there is nothing le

  2. #12
    This is how I did the shoulder harness bar for our '08 car to take the bending out:







    _______________________________________

    Northwestern Formula Racing Alum
    Head Engineer, Frame/Suspension 2006-2009

    My '73 Saab 99 Road Race Build

  3. #13
    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Drew Price:
    This is how I did the shoulder harness bar for our '08 car to take the bending out:







    </div></BLOCKQUOTE>

    *Off Topic*
    That's the shortest bloody car I've ever seen! Good Lord! Were all your drivers 5'2"? And what was the final weight distribution that year?
    *End Off Topic*
    San Jose State University

    FSAE Chassis and Ergonomics Lead '12-'13
    FSAE Chief Engineer '11-'12
    FSAE Chassis Technical Lead '10-'11
    Formula Hybrid Chassis Grunt '09-'10

    "A designer knows he has achieved perfection not when there is nothing le

  4. #14
    I believe it was 47/53, 60" wheelbase. Our tallest driver was 6'2" or 6'3", the seating position was pretty upright. That was our first car, it had lots of things that were a little challenged, but we didn't break anything!
    _______________________________________

    Northwestern Formula Racing Alum
    Head Engineer, Frame/Suspension 2006-2009

    My '73 Saab 99 Road Race Build

  5. #15
    Being a frame designer, I love looking at old frames and playing the "what on this frame isnt legal anymore" game. That list seems to keep growing every year.
    Jason Martin

  6. #16
    Yup. That frame would have had some issues even the year after we built it.
    _______________________________________

    Northwestern Formula Racing Alum
    Head Engineer, Frame/Suspension 2006-2009

    My '73 Saab 99 Road Race Build

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