Sideways engine?

[Jeff Hughes]

I flew an Arch Nemisis with a st2300 at the 7:30 location and you couldn't tell any difference. As long as the plane is balanced lateraly it really doesn't know where the cylinder head is.

  ----- Original Message ----- 
  From: Woodward James R Civ 412 TW/DRP 
  To: discussion at nsrca.org 
  Sent: Tuesday, January 13, 2004 12:22 PM
  Subject: RE: Sideways engine?


  I think Ron Ellis flew Sam Turners first Saturn with the ST2300 positioned at the 07:30 spot, and original muffler down the center.  

  Jim W.

   

  -----Original Message-----
  From: John Ferrell [mailto:johnferrell at earthlink.net] 
  Sent: Tuesday, January 13, 2004 11:19 AM
  To: discussion at nsrca.org
  Subject: Re: Sideways engine?

   

  That makes sense to me. I am really surprised that the question did not get a bigger response though. 

  I am way too lazy to conduct any testing on my own. I probably lack the skill necessary to discern the difference any way.

   

  John Ferrell
  6241 Phillippi Rd
  Julian NC 27283
  Phone: (336)685-9606
  johnferrell at earthlink.net
  http://DixieNC.US
  NSRCA 479 AMA 4190  W8CCW
  "My Competition is Not My Enemy"

    ----- Original Message ----- 

    From: george kennie 

    To: discussion at nsrca.org 

    Sent: Tuesday, January 13, 2004 1:30 PM

    Subject: Re: Sideways engine?

     

    John, 
    I'm not sure if I'm right on this, but I think that I would like to have all that Mass(bulk & weight of the engine head) located on the centerline of the aircraft.I think that all that off-center mass could produce some unexpected and unwanted effects during snap type maneuvers(and probably others) where radical changes in aircraft speed differentials might magnify the off-center forces in a detrimental way causing exagerated pitch and roll responces making control during certain maneuvers difficult to compensate for. I don't have any empirical data to back any of this up, but it just doesn't feel right to me. 
    Georgie 

    John Ferrell wrote: 

      From Eric's recent post on another topic:Mounts his engine sideways> Uses a  more regular header etc.I have forgotten what the advantages are to inverted engine mounting. Like the matter of retracts which seems to have become a personal choice, I wonder if it really matters to the flying characteristics. An engine on its side is more tolerant of flooding, easier the plumb the exhaust, easier to connect/disconnect the glow plug. I expect that it would spin & snap differently depending on direction, but that seems to be the norm with the engine inverted too.  John Ferrell 
      6241 Phillippi Rd 
      Julian NC 27283 
      Phone: (336)685-9606 
      johnferrell at earthlink.net 
      http://DixieNC.US 
      NSRCA 479 AMA 4190  W8CCW 
      "My Competition is Not My Enemy"

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