Vernier-Assist 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-AssistTM 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.
Control with 10-32 threaded end:
Control with 1/4-28 threaded end:
Control with 5/64" dia 1x7 twisted stainless steel wire end:
Dual Control with 1/16" dia 1x7 twisted stainless steel wire ends:
|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|