dimanche 20 décembre 2015

help with shoulder belt installation requirements

can anyone point me to research or design requirements (not to be confused with opinions) for the width between the shoulder belt anchors in a formula car? the FIA site
(www.fia.com) has been checked and I didn't find the desired information. there's an excellent document on HANS belt installation (Guide for the use of HANS® in
international motor sport; aka: Guide_HANS_2007_0.pdf). the GCR, 9.3.19. DRIVER’S RESTRAINT SYSTEM - F. Harness Threading: Fig. 2 isn't much help. " 4-6" max. at guide or anchorage - when using a head and neck restraint, follow the manufacturer's recommendation. " doesn't inspire a great deal of confidence?? surely there's something better than: 0 to 6" unless you have a note from a manufacturer !!

at this point I'm guessing mounting geometry requirements change as the driver's seating position transitions from full upright to Swift DB-1 to Stohr FF and I'd like to get it right. safety, like so many things, is about attention to detail.

Art
artesmith@earthlink.net


help with shoulder belt installation requirements

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