Vernier-AssistTM Throttle Controls
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.
These light weight controls use a patented roller action and do not use a positive lock thread engagement. 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. For extreme conduit routing or heavy carburetor load installation, slight inward or outward assist pressure could be required during rotation.
We currently offer these new controls for use on non-certified aircraft only. However, we plan to obtain FAA-PMA approval to offer the new Vernier-Assist mechanism as an option on many of our currently approved controls for Cessna and Piper, as well as our popular MC600 universal mixture control.
MCTV Throttle Series:
The new Vernier-Assist throttle control is adjustable for friction and vernier engagement and is available with three different end configurations. Requires a 3/4" panel hole. Available in a variety of standard lengths or can be custom fabricated to your unique requirements.
Throttle Control with 10-32 threaded end:
Throttle Control with 1/4-28 threaded end:
Throttle Control with 5/64" dia 1x7 twisted stainless steel wire end:
Dual Throttle Control with 1/16" dia 1x7 twisted stainless steel wire ends:
|OEM Part Number||McFarlane Part Number||Comment|
|Current McFarlane Product Catalog|
|McFarlane Newsletter 2009-12: Galvanized Cables, Wire Clamps, Gift Ideas|
|2011-09-22 Vernier-Assist Mixture and Throttle Controls|
|Extend the Life of Your McFarlane Throttle Control|
|Vernier-Assist Mixture Control Specifications|
|Vernier-Assist Throttle Control Specifications|
|Push-Pull Control Utilizing Linear & Rotational Input Patent # US 8,485,057 B1|
|Universal Vernier-Assist Control with Threaded End Installation Instructions|
|Universal Vernier-Assist Control with Wire End Installation Instructions|
|Vernier-Assist Mixture Control Installation Instructions|
|Vernier-Assist Piper Style Throttle Install Instructions|
|Vernier-Assist Standard Throttle and Dual Throttle Installation Instructions|
|Control Eligibility and Catalog Information|
I purchased a laser engraved knob and the thickness of the marking is very shallow. What kind of wear resistance can I expect?
Why is my new engine control too long/short?
What is the minimum bend radius for my engine control?
How do I trim my engine control to length?
My Vernier-Assist throttle control came apart during installation or maintenance. Can it be put back together?
My Vernier-Assist mixture control came apart during installation or maintenance. Can it be put back together?