Sideways engine?

[Bill Glaze]

Del:
Excellent point.  I sometimes find myself trying to pick the flyspecks 
out of pepper, when time would be better spent practicing.  As John 
Ferrell said elsewhere about his flying skills, my skill level also is 
not such as to see any difference in my side mounted Moki and my 
inverted Y.S. engines in my rather limited flight regime of 
Intermediate.  The Moki (1.8) is in a Midwest CAP 232 and I also have a 
R.C America CAP with a Moki 2.1 in it.  Neither have any bad tendencies 
I can attribute to the sideways engine placement.

Bill Glaze.

Del K. Rykert wrote:

> Some good points.. Not sure I could ever justify the time and expense 
> getting the answer. Time on the sticks through focused practice is 
> still where my time earns biggest result. < VBG >.
>    
>     del
>  
>
>     ----- Original Message -----
>     From: Henderson,Eric <mailto:Eric.Henderson at gartner.com>
>     To: discussion at nsrca.org <mailto:discussion at nsrca.org>
>     Sent: Wednesday, January 14, 2004 1:49 PM
>     Subject: RE: Sideways engine?
>
>     You should also consider that the engine has its cylinder on the
>     right hand side of the plane. With 3.5 degrees of side thrust the
>     bulk of the crankshaft (The heaviest part) is displaced to the
>     left of center if the spinner is centered. Balance an engine
>     sometime on its side and you will see that the CG of the engine is
>     not on its thrust line.
>      
>     Now al all of the above poses a new question, if you care, of how
>     much of a problem we are creating by offsetting and inverted
>     engine 3/4" at the back of the engine--- Hmmmm.
>      
>     Also the mass of the mass of the engine has always helped in level
>     flight, when side mounted as it weight is opposite to the
>     counter-rotation caused by the prop.
>      
>     It's January, it's cold - even snow, and we are back!
>      
>     Regards,
>      
>     Eric.
>      
>     P.S. The wide body cheek type cowls allow an extremely neat
>     installation. The Rhapsody had a chin cowl with nothing in it. It
>     was just for access.
>      
>      
>      
>     -----Original Message-----
>     From: discussion-request at nsrca.org
>     [mailto:discussion-request at nsrca.org]On Behalf Of Del K. Rykert
>     Sent: Wednesday, January 14, 2004 11:20 AM
>     To: discussion at nsrca.org
>     Subject: Re: Sideways engine?
>
>     Well I will bite to only suggest that the mean center line of the
>     CG is what would have the most significant reference for snaps and
>     engine mass if located same distance from CG and same off set of
>     midline then how can orientation of a reciprocating moving mass
>     have any differing effect on the stalled snap of the aircraft as
>     we can stop the snap in any attitude we choose to with the same
>     results only difference I've ever noticed is timing.  It may be so
>     subtle that it is hard to detect but I do fly my aircraft very
>     neutral and suspect it would be most noticeable in that trim state.
>         What do others think..  I am only a poor armchair aerodynamics
>     wishful thinker.
>      
>               del
>                    NSRCA - 473
>
>         ----- Original Message -----
>         From: John Ferrell <mailto:johnferrell at earthlink.net>
>         To: discussion at nsrca.org <mailto:discussion at nsrca.org>
>         Sent: Tuesday, January 13, 2004 2:19 PM
>         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 <mailto:johnferrell at earthlink.net>
>         http://DixieNC.US
>         NSRCA 479 AMA 4190  W8CCW
>         "My Competition is Not My Enemy"
>
>             ----- Original Message -----
>             From: george kennie <mailto:geobet at gis.net>
>             To: discussion at nsrca.org <mailto: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 
>
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