[NSRCA-discussion] Cooling outrunners

[Bruce Thoman]

Check with Lamar Blair,he uses the Plettenberg
  ----- Original Message ----- 
  From: JShulman 
  To: NSRCA Mailing List 
  Sent: Friday, December 15, 2006 7:25 PM
  Subject: Re: [NSRCA-discussion] Cooling outrunners


  This was the picture I was looking for
  http://www.plettenberg-motoren.com/UK/zuxtra.htm

  Regards,
  Jason
  www.jasonshulman.com
  www.shulmanaviation.com
  www.composite-arf.com 

    -----Original Message-----
    From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of J.Oddino
    Sent: Friday, December 15, 2006 7:13 PM
    To: NSRCA Mailing List
    Subject: [NSRCA-discussion] Cooling outrunners


    It would seem the best way to cool outrunners that have holes in the case on the end that faces the nose ring, would be to bring air in through the spinner and through holes in the backplate.  Wondering if anyone has really thought about the optimum design.  I can picture internal vanes but perhaps cutting off the nose of the spinner and leaving a big hole would be adequate.  Anyone tried anything like this?

    Jim O


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