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Thread: RA Vanguard

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  1. #1
    Weekend Warrior
    Join Date
    Apr 2012
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    Bay View NAPIER
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    Quote Originally Posted by stubuchanan View Post

    "He (Moore) was a speedway man and his idea of getting around bends was about hanging it out on the corners, whereas Hec's suspension wouldn't do that.... so it tucked a wheel under and somersaulted, killing Les.
    Stu
    Thanks for you input Stu, I too had heard Jacks theory about the suspension mods, however the low pivot configuration that Hec employed doesn't lend itself to "Tucking a wheel under" The car has that same arrangement now and that characteristic is not evident. It does however have a decided tendency to rear wheel bump steer. Hard rear suspension does tend to overcome this but with the rear end softened up I hazard to guess just where the steering may tend to go. In long discussions with Ralph Watson, while I was rebuilding the rear end, I mentioned to him the potential to bump steer, he believed that the car always had this tendency, given the suspension pick-up points (of what is effectively a wishbone), being on different planes. I have letter from him with typical Ralph Watson diagrams and calculations attesting to this tendency. His suggestion was to keep it hard with minimum deflection. What Les Moore may have done to change the arrangement can only be guessed at. Certainly the wheel tucking effect would have involved serious re-engineering
    Last edited by Nodiff; 04-19-2013 at 07:37 AM.

  2. #2
    Semi-Pro Racer
    Join Date
    Jun 2011
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    Whenuapai, NZ
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    391

    Saltwater Creek,( Carlo) - and Les Moore(?) Modifications (Nodiff)

    Thanks for the Saltwater Creek info, Carlo. Several years ago I read in a book about the Aerial Topdressing industry in NZ that there had been an airfield at Saltwater Ck - closed about 1960 or so. I wondered if this might have been the motor racing venue but drew a blank on all inquiries. Nice to know I guessed right after all! One of quite a few grass-track airfield venues up and down the country at the time.

    Nodiff - In the same NZ Classic Car story that mentioned the Les Moore modifications there is a post-accident photo of the rear of the car which doesn't look significantly different to a Ralph Watson photo from 1953. The R.H. trailing link or wishbone may have been damaged, and the tubular frame the shocks are attached to is different but looks as if they would have had exactly the same geometry. Fascinating stuff!

    Stu

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