Pull/Pull System for r/c - RC Groups
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Mar 18, 2002, 12:28 PM
Registered User

Pull/Pull System for r/c

I am interested in using a pull/pull system for rudder and elevator and would like to know if you should use a servo linked to a bellcrank to drive the cables (Spiderwire) or can you connect the pull/pull wires directly to the servo with out damaging the servo drive componets? Any drawings available?

Would appreciate any input.

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Mar 18, 2002, 12:38 PM
Registered User
Philipp's Avatar
I am probably doing all of the things that you should not do, but this is what I have on one plane:

43" Span, 48oz, AF 035G, 8 cell CP1700.

Using a standard HS 81 (plastic Gears) with spiderwire, 30# test tied directly to the servo arms, then crossed to make a proper exit from the plane to the rudder. I am even using a steerable tailwheel attached directly to the rudder.

I had to cut into the covering yesterday to tighten the lines up a bit, but have thus far never stripped a gear.
Mar 18, 2002, 12:39 PM
(Batteries not included.)
Dave Wenzlick / Slickraft's Avatar
Try this thread in Sport Planes forum.

Dave Wenzlick
Mesa AZ
Mar 18, 2002, 02:13 PM
fortune favours the bold
gjestico's Avatar


Heres my E3D setup. Hs-85, nylon coated fishing leader.
Weighs less than putting the servo in the tail. Sorry for the poor quality picture.
Mar 18, 2002, 02:18 PM
Ascended Master
Sparky Paul's Avatar
Check this out for the smallest possible installation of puul-pull:

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