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Old 08-04-2017, 03:05 PM
Bigortho Bigortho is offline
Join Date: May 2016
Location: Forest Hills, NY
Posts: 11
Default RV-14 Vernier Throttle Cable

The RV 12 come with a McFarlane vernier throttle cable, but the RV-14 is shipped with an ACS locking throttle cable which slips, according to pilots flying their finished RV-14ís.

Well Tim Paine of McFarlane has designed a Vernier throttle cable for the RV-14: cost $310. I will install it next week.

McFarlane Aviation, Inc.
696 East 1700 Road
Baldwin City, KS 66006
785-594-2741 Ext 218
785-594-3922 fax
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Old 08-04-2017, 03:34 PM
rvbuilder2002 rvbuilder2002 is offline
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 7,615

Originally Posted by Bigortho View Post
but the RV-14 is shipped with an ACS locking throttle cable which slips, according to pilots flying their finished RV-14ís.

If it does then the throttle would also be slipping (and they don't) on RV-10's, RV-9's, and RV-7's, because they all use the same throttle control design.

I think you are thinking of a couple people saying that their heat control cable slipped (a very different control cable than the one used for the throttle)
Any opinions expressed in this message are my own and not necessarily those of my employer.

Scott McDaniels
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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Old 08-04-2017, 05:47 PM
KeithB KeithB is offline
Join Date: Mar 2014
Location: Granbury, TX
Posts: 159

I think RV-12 throttles had a tendency to slip because of the spring tension on the Bing carbs on Rotax engines - hence the Vernier. I installed a Mcfarlane vernier throttle cable on my RV-14 but purely for its function.
(I have a Superior XP400 engine and for this engine ONLY, I would recommend adding an extra 2" to the cable length over the standard Vans cable length and this engine will also require fabricating a new throttle bracket.)
Keith Brown

RV-14A Builder - kit #136
N314KC - First flight Mar 8, 2017, >300 hrs
RV-6A sold
Sport Pilot (weight-shift control) - Airborne XT912
Dues paid 11/2017
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