TEST- now motor mount Poll

[ronlock]

The rotational impulse from the firing stroke is a much stronger vibration
source than the reciprocating parts.   That's one of reasons the 4 strokes
vibrate more, each firing stroke is stronger than in a 2 stroke that fires
twice as often.

Later, Ron Lockhart
  ----- Original Message ----- 
  From: Jeff Hughes 
  To: discussion at nsrca.org 
  Sent: Saturday, January 03, 2004 12:22 AM
  Subject: Re: TEST- now motor mount Poll


  I'm not sure I understand, shouldn't we be more concerned about up and down and side to side motion of a single cylinder engine, rather than the rotational (torque) motion? I would think most of the vibration is from the counterweight and piston motion, not firing torque?

    ----- Original Message ----- 
    From: Ed Miller 
    To: discussion at nsrca.org 
    Sent: Friday, January 02, 2004 3:49 PM
    Subject: Re: TEST- now motor mount Poll


    Hanson Rotomount and Clayton Foster nose ring get my vote. The Rotomount can be made very light and it's adjustable for firmness and thrust angle. I've had 5 planes with it without any problems. Works on the same principle as the Hyde mount in that it allows the engine to rotate along the crankshaft centerline. A side benefit is it costs less than 10 bucks to make. 
    Ed M.
      ----- Original Message ----- 
      From: Nat Penton 
      To: discussion at nsrca.org 
      Sent: Friday, January 02, 2004 5:02 PM
      Subject: Re: TEST


      Bill I believe if we could get people to convey their likes and dislikes on engine mounts we could all benefit. (At least we would'nt have to bring up the downwind turn).       Nat----- Original Message ----- 
        From: William C. Harden 
        To: discussion at nsrca.org 
        Sent: Friday, January 02, 2004 3:16 PM
        Subject: RE: TEST


        Quite on the list today, isn't it?

         

        Bill

         

        -----Original Message-----
        From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On Behalf Of Dwayne & Nancy Brown
        Sent: Friday, January 02, 2004 12:34 PM
        To: Society of Antieque Modelers; Slow Flight RC; Senior Pattern Association; Pattern List; Pattern; GSAL
        Subject: TEST

         

        TEST

         

        Dwayne
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