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  #1  
Old 06-25-2012, 01:15 PM
Dvalcik's Avatar
Dvalcik Dvalcik is offline
 
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Location: Ellsworth, ME
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Default Vernier Throttle for the RV-12

Just received the throttle for my EAB 12. I went straight to McFarland for the same one as the Vans throttle, except with the Vernier and Friction lock features. As I get closer to the first flight I will post my thoughts and how the throttle performs.
.
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RV12 #568 EAB
* Started 9/30/2011
* 1st flight 8/30/12


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  #2  
Old 06-25-2012, 08:02 PM
Alschief Alschief is offline
 
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Location: Anderson MO
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Default Vernier Throttle Cable

That is the same one we are using on the UL engine.
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  #3  
Old 06-26-2012, 08:05 AM
VHRV12 VHRV12 is offline
 
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NICE....that will stop the throttle creep problem!
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  #4  
Old 08-13-2012, 11:42 AM
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engineerofsorts engineerofsorts is offline
 
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Default RV-12-specific vernier throttle availability

Michelle Shelly at MacFarlane informed me that an RV-12-specific vernier throttle package is now available. This consists of their Rotax 912-compatible vernier throttle which has the cables pre-cut to that of the original throttle cable supplied with the kit, with the cable ends crimped on, along with a set of weaker throttle springs to replace the extra-heavy pull original Rotax-supplied springs.

P/N: MCRV12-T
$176.95

This does not yet appear in their on-line catalog.

Rob
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  #5  
Old 11-18-2012, 07:54 AM
woodsideraff woodsideraff is offline
 
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Location: Aiken, SC
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Default Any experience with the vernier throttle?

Has anyone installed and tried the vernier throttle from McFarland? I don't like the idea of the weaker springs.

Regards,

Rafael
RV=8A flying and for sale
Rv-12 5 hours completed
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  #6  
Old 11-18-2012, 09:08 AM
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RV6_flyer RV6_flyer is offline
 
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After 10+ hours in a Mooney with a vernier throttle, I have to say that I hate vernier throttles. I found the throttle very unsafe. On takeoff, it was difficult to feed throttle in for take-off power without glancing down thus it became difficult to keep the airplane on the runway.

Landing had the same problem. Pulling the power to idle right before or at touchdown was difficult and the airplane would sometimes get pointed sideways. If the instructor asked for a go around on short final or right before touching down, that also was next to impossible to do without touching the runway or adding power in at the proper increase rate.
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  #7  
Old 11-18-2012, 10:13 AM
woodsideraff woodsideraff is offline
 
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Location: Aiken, SC
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Default Vernier Throttle operation

Quote:
Originally Posted by RV6_flyer View Post
After 10+ hours in a Mooney with a vernier throttle, I have to say that I hate vernier throttles. I found the throttle very unsafe. On takeoff, it was difficult to feed throttle in for take-off power without glancing down thus it became difficult to keep the airplane on the runway.

Landing had the same problem. Pulling the power to idle right before or at touchdown was difficult and the airplane would sometimes get pointed sideways. If the instructor asked for a go around on short final or right before touching down, that also was next to impossible to do without touching the runway or adding power in at the proper increase rate.
I have owned 4 Bonanzas, all with Vernier Controls. To operate without the Vernier, one simply pushes the center button and it operates push/pull. Looking at the McFarland design, I believe it operates in a similar way.

Regards,

Rafael
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  #8  
Old 11-18-2012, 11:14 AM
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Dvalcik Dvalcik is offline
 
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Talking

Quote:
Originally Posted by woodsideraff View Post
Has anyone installed and tried the vernier throttle from McFarland? I don't like the idea of the weaker springs.



Regards,

Rafael
RV=8A flying and for sale
Rv-12 5 hours completed
Guys the one for the 12 doesn't have a push to activate.  This new style push or pull the throttle or twist to fine tune the settings 

Best of both worlds 

From day one that is what I installed. Very smooth and responsive. I did install the spings and glad I did. I did transition training in an E-LSA RV12 using the standard throttle with the friction lock and no issues (the Vernier is just a little nicer setup). After 60 hours in my 12 I wouldn't switch, I love the Vernier.
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EAA 1434 KBST
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2018 VAF Supporter


RV12 #568 EAB
* Started 9/30/2011
* 1st flight 8/30/12


http://www.rv12pilot.com
https://www.youtube.com/user/dvalcik

Last edited by Dvalcik : 11-18-2012 at 11:19 AM.
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  #9  
Old 11-18-2012, 11:47 AM
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Mel Mel is online now
 
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I've been flying with vernier throttles for over 40 years and love them.
If I need a rapid advance or retard, I simply hold the button in with my palm. Otherwise I can fine tune easily.

It's a matter of what you like.
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  #10  
Old 11-18-2012, 12:48 PM
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Dvalcik Dvalcik is offline
 
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Mel - the one for the RV12 doesn't have a button - it is vernier assist

From their website

Vernier-AssistTM Throttle Controls for Dual Carburetor 912/914 Series Rotax Engines
Innovative design allows a neat, clean installation without a clunky splitter box

McFarlane invents a new type of vernier engine control
This brand new type of control has all the fine adjustment benefits of an old style push-button release vernier control, with the simplicity, responsiveness, and jam-proof safety of a friction lock control.



Light weight and compact behind the panel
Safer - no vernier threads to jam!
Patent Pending US Pat. Application #13/110,632
These light weight controls use a patent pending drive mechanism. The new roller action vernier provides smooth, jam-proof coarse and fine adjustment without a release button. Coarse adjustments are made by pushing the knob inwards or pulling the knob outwards. Fine adjustments are made by rotating the knob clockwise or counterclockwise.
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EAA 1434 KBST
Belfast, ME
david@rv12pilot.com
2018 VAF Supporter


RV12 #568 EAB
* Started 9/30/2011
* 1st flight 8/30/12


http://www.rv12pilot.com
https://www.youtube.com/user/dvalcik
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