McFarlane invented a new type of vernier engine control!
This 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.
MCMV Mixture Series:
The new Vernier-Assist mixture control offers vernier action in a light weight, compact package. It is a drop in replacement for many existing non-vernier mixture controls because it only requires a 3/8" panel hole. It also only extends about 3.5 inches behind the dash making it ideal for aircraft with tight space constraints. Available in a variety of standard lengths or can be custom fabricated to your unique requirements.
Mixture Control with 0.061" diameter solid wire end:
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:
MCVA Universal Series:
Knob is not included. Requires a knob with 1/4-20 thread.
Control with 0.061" diameter solid wire end:
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: