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Converting RC engine to CL?

Hi all,
My latest acquistion is a used Super Tigre .40 RC engine.
Fired it up & it screams! :-)
I'm contemplating running it on a CL aircraft.
Is there any special tricks/mods to turn it into a CL engine?
Does one just hook up some sort of a locking "throttle stick" to the
RC throttle linkage?
I've surfed around the 'net but couldn't find any info on the
conversion.
Thanks in advance!
B
Reply to
bart
Loading thread data ...
On Wed, 16 May 2007 21:29:51 GMT, bart wrote in :
Congratulations!
If all you want is wide-open throttle, that would do.
I don't know what the ST carb looks like. You might be able to tighten a set screw on it and have it held open all the time.
Marty
Reply to
Martin X. Moleski, SJ
"Martin X. Moleski, SJ" wrote
Good idea. There might be a slow speed idle screw that could be replaced with a longer screw, and it could hold the idle at WOT.
Reply to
Morgans
On Wed, 16 May 2007 18:07:49 -0400, "Morgans" wrote in :
That's the kind of thing I was thinking.
Might take some fussing--oooh, or JB Weld in the carb slot to hold it open. It's good stuff and should stick well in the slot after some thorough cleaning.
Marty
Reply to
Martin X. Moleski, SJ
"Martin X. Moleski, SJ" > wrote
I would not go with anything irreversible, like that.
You could take a piece of steel music wire that fits into the throttle arm, and bend a 90 degree bend in it even with the back plate when the wire is holding the throttle wide open. Solder a small electrical terminal eye onto the downward bent part, so that the eye could be screwed down underneath a backplate screw.
A small U-bend could be bent into the wire just in back of the throttle arm, so it could be squeezed more, or spread open more, to make the position of the throttle slightly adjustable.
Reply to
Morgans
That's an excellent idea. I've read plenty of magazine articles over the years where the author refers to the throttle being "wired open" to fly a .35 sized model on two channels, or to fly a control line plane with an RC engine, etc. It seems like an obvious thing to do, but I never thought of how to do it. An eyelet under the backplate screw is a stroke of genius.
Reply to
Robert Reynolds
IIRC people used to use a spring to bias the throttle arm one way or the other, and a third wire to control it for e.g. carrier landing contests.
I would simply tie it back with a rubber band or small spring.
Reply to
The Natural Philosopher
"Robert Reynolds" < wrote
Why, thank you!
I tend to be a problem solver type, and think out of the box.
Sometimes, it is more like, "what box?"
Reply to
Morgans
go here
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you should be able to get a real venturi and needle valve for less than $20.
Reply to
uliner
After more surfin' I came across 3 line bellcranks - the third line is for throttle control;
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sheet;
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jig;
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sells three line control handles also.
My apologies that this topic isn't strictly RC ;-)
Thanks again all! :-) Bart
Reply to
bart
It's okay...I've long contemplated putting my overweight FOX 36 RX/RC into a Ringmaster with a 3-line setup. Well one of these days anyway.
Reply to
Keith Schiffner

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