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<DIV><FONT face=Arial size=2>A pure way to determine effect would be to install
a tip weight on one wing and double the tip weight half way out on other wing.
Another flight condition subject to unwanted inertial forces (
effected by weight assymetry about the pitch axis )is starting and stopping the
spin. I don't think these forces affect the spin in a noticeable way. Who wants
to make the nose as long as the tail- hoho !</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Rcmaster199@aol.com
href="mailto:Rcmaster199@aol.com">Rcmaster199@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, January 18, 2004 2:59
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Sidemounted engine</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 face=Arial size=2
FAMILY="SANSSERIF" PTSIZE="10">Jeff or Nat, to prove the point or disprove it,
it might be worthwhile to run a simple experiment. Add, say, 6-8 ounces of
lead to one wheel pant to cause an assymetric condition, and counter the out
of balance condition with enough weight on the opposite wing tip. That much
weight in the pant seems about right to simulate a skewed rather than
orthogonal engine installation. Then get to the rolls, fast slow and
everything in between. It would be interesting to see what you get<BR><BR>Matt
K<BR><BR>
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TYPE="CITE">Subj:<B>Re: Sidemounted engine </B><BR>Date:1/18/2004 2:23:30 PM
Eastern Standard Time<BR>From:<A
href="mailto:jhughes@hsonline.net">jhughes@hsonline.net</A><BR>Reply-to:<A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>To:<A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR><I>Sent from
the Internet </I><BR><BR><BR><BR>Well, while I agree it's not worth worrying
about. I do believe that it wouldn't matter what orientation you mounted a
single cylinder engine, there would be some manuevers affected. But, axial
rolls in particular wouldn't matter.. Side, inverted, upright, from a mass
distribution standpoint, the plane couldn't tell. It would only be some
wierd progression type manuever (tumbles, etc).</FONT><FONT lang=0
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TYPE="CITE">----- Original Message ----- <BR><B>From:</B> <A
href="mailto:natpenton@centurytel.net">Nat Penton</A> <BR><B>To:</B> <A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<BR><B>Sent:</B> Sunday, January 18, 2004 8:57 AM<BR><B>Subject:</B> Re:
Sidemounted engine<BR><BR><BR>The forces causing a non-axial roll occur
only during the acceleration phases of the roll ( starting and stopping ).
Undesireable forces are generated because masses at different distances
from the roll axis experience different rates of acceleration. In practice
I don't think we have a problem with the side-mounted engine. Would
someone tell me where to find the Mars
pictures. Voodoo</FONT><FONT
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TYPE="CITE">----- Original Message ----- <BR><B>From:</B> <A
href="mailto:jhughes@hsonline.net">Jeff Hughes</A> <BR><B>To:</B> <A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<BR><B>Sent:</B> Sunday, January 18, 2004 11:35 AM<BR><B>Subject:</B>
Re: Sidemounted engine<BR><BR><BR>Too really have the minimal, an
electric motor and batteries on the Cg running a driveshaft out to the
nose would be the best solution. </FONT><FONT lang=0
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TYPE="CITE">----- Original Message ----- <BR><B>From:</B> <A
href="mailto:chuckwagon@charter.net">Chuck Wagoner</A> <BR><B>To:</B>
<A href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<BR><B>Sent:</B> Saturday, January 17, 2004 11:45
PM<BR><B>Subject:</B> Re: Sidemounted
engine<BR><BR><BR>Jeff,</FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF" PTSIZE="12" BACK="#ffffff"><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF" PTSIZE="10" BACK="#ffffff">What about a comparison
of a "centered" electric vs. a twin?</FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF" PTSIZE="12" BACK="#ffffff"><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF" PTSIZE="10" BACK="#ffffff">Chuck</FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF" PTSIZE="12" BACK="#ffffff"><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF" PTSIZE="10" BACK="#ffffff"><BR>----- Original
Message ----- <BR><B>From:</B> <A
href="mailto:jhughes@hsonline.net">Jeff Hughes</A> <BR><B>To:</B> <A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<BR><B>Sent:</B> Saturday, January 17, 2004 11:36
PM<BR><B>Subject:</B> Re: Sidemounted engine<BR><BR><BR>Though on a
pattern plane, side mounted is just point of view. In knife edge an
inverted engine is now side mounted. We're all going to have to go to
twins to solve this issue!</FONT><FONT lang=0
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FAMILY="SANSSERIF" PTSIZE="12" BACK="#ffffff"><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF" PTSIZE="10" BACK="#ffffff"><BR>----- Original
Message ----- <BR><B>From:</B> <A
href="mailto:natpenton@centurytel.net">Nat Penton</A> <BR><B>To:</B>
<A href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<BR><B>Sent:</B> Friday, January 16, 2004 6:01 PM<BR><B>Subject:</B>
Sidemounted engine<BR><BR><BR>Looking at the undesirable forces that
would be generated by the assymetric distribution of weight to achieve
lateral balance - hard yaw or tight corners would produce no effect
because all components would be subject to the same acceleration.
There would be an effect during roll, however, because the masses are
subjected to different rates of acceleration (polar ) . Our planes
damp and reach steady state roll rapidly . These unwanted roll forces
would cause a change in pitch ( same as when one aileron has more
throw ) during their short life . The magnitude of the pitch change
would be hard to quantify ( by me </FONT><FONT lang=0
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