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<DIV>No way would I go separate servos in the stab of the Excelleron.
Weight issues, and structure. Don't know what's under the skin back
there.</DIV>
<DIV>Also no way I'd do a pushrod, either. The pull pull is just too easy,
and there is an EASY and inexpensive solution to the clevis attachment point
issue.</DIV>
<DIV><BR>Bob Pastorello<BR>NSRCA 199 AMA 46373<BR><A
href="mailto:rcaerobob@cox.net">rcaerobob@cox.net</A><BR><A
href="http://www.rcaerobats.net">www.rcaerobats.net</A></DIV>
<DIV> </DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<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> Monday, December 27, 2004 12:41
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Dual Elevator Thingy.</DIV>
<DIV><BR></DIV><FONT id=role_document face=Arial color=#000000 size=2>
<DIV>
<DIV>Steve, Hyde engine mounts (and Hyde type, homemade units), are
unsurpassed when it comes to engine vibration attenuation. I would wittle a
little and fit this mount in.</DIV>
<DIV> </DIV>
<DIV>The smaller models are not as easily outfitted with dual servos at the
stab. There would usualy be a CG or weight penalty. Its a great solution
for larger planes tho. </DIV>
<DIV> </DIV>
<DIV>The MK belcrank is okay, except the main pushrod will need some support
to keep it from shaking in synchrony. This set-up is surprisingly heavy even
with single servo driving the whole contraption. </DIV>
<DIV> </DIV>
<DIV>The twin carbon push rod set-up (that Nat Penton originated some 25 years
ago, BTW) is an excellent alternate method. </DIV>
<DIV> </DIV>
<DIV>My favorite is pull-pull because of the 4 point independent adjustment
available, and overall lightness of the system. The lightest around at around
1/3 oz complete with clevises and couplers.</DIV>
<DIV> </DIV>
<DIV>BTW, thanks for the plug. When setting up pull-pull, simulate dynamic
load on the surfaces by using rubber bands to pull the surface back to center
(from behind the plane) when setting up cable tension. Light tension on the
cables is far better than heavy tension BTW. Guitar string tightness will wear
the servo out prematurely. Please remember, eye bolts only for the hook ups.
I've had Dubro threaded couplers rip through steel cable before, so
beware</DIV>
<DIV> </DIV>
<DIV>MattK</DIV>
<DIV> </DIV>
<DIV>In a message dated 12/27/2004 11:18:56 AM Eastern Standard Time,
whisperingsmith@speakeasy.net writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" face=Arial color=#000000
size=2>Greetings,<BR>I have need for some input. I'm running behind on my
Epsilon project so <BR>I bought an Excelleron to be sure I'll be able to
compete (Dist. 8 <BR>Sportsman rookie) should the Epsilon not be ready when
the monsoon <BR>season ends here in the Pacific NW. I'm wondering what you
fellow <BR>fliers of this model (Excelleron) are doing for elevator
linkage??? I <BR>DO NOT want to run elevator pull-pull so it looks
like either Troy's <BR>DEP gizmo or an MK doo-hicky. However, upon examining
the fuse it would <BR>seem like dual servos are possible as well. I just
picked up some JR <BR>DS3301's (God bless ebay) & after sending them in
for inspection <BR>they'll be awaiting a good home - elevators?.<BR>Power
will be courtesy of either my YS 91 or 110 because I'd rather fly <BR>than
spend the day trying to get a dumb-stroke to run properly (Flame
<BR>suit currently being mended so be gentle).<BR>Anyhoo, could I get some
idea of any balance or other problems I might <BR>incur with my engine &
possible tail mount servo choice? I'd also like <BR>to know what ya'll (for
you guys east of me - youse if you're real <BR>east) are doing for engine
mounts. Will the stock mount take a YS 110? <BR>I have a Hyde mount which
I'd prefer to use but it looks like some <BR>whiitlin' (ca'van) might be in
order.<BR>You guys are a TREASURE of information & fun when yer
not fightin n' <BR>fussin like wet hens!!!!<BR>Steve B.<BR><BR>PS Anyone
needing pull-pull cable (rudder or otherwise)- Matt has the <BR>best stuff
I've come across! Email him at Rcmaster199@aol.com</FONT></BLOCKQUOTE></DIV>
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