MCVA3035-20-144 Universal Vernier-Assist Control (12 ft) | McFarlane Aviation MCVA303520144

Please use the push-pull controls pages the McFarlane Aviation catalog below to confirm the MCVA3035-20-144 control’s compatibility with your aircraft.

• Push-pull controls, accessories, and eligibility chart section of McFarlane Aviation, Inc. catalog (PDF)

Product Details:

• Control with 5/64″ diameter 1×7 twisted stainless steel wire end
• Knob is not included. Requires a knob with 1/4-20 thread.
• Available in 4, 6, 8 and 12 foot lengths
• Vernier and friction lock
• Includes 6515 Barrel Stop Assembly
• Requires a 3/4″ panel hole
• Replaces: MCVA0035-20-144
• Manufactured by McFarlane Aviation, Inc.
• Dimensions: L: 20 x W: 20 x H: 3 in
• Weight: 1 lbs

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 controls for use on non-certified aircraft only. However, we plan to obtain FAA-PMA approval to offer the Vernier-AssistTM mechanism as an option on many of our currently approved controls for Cessna and Piper.

• Light weight and compact behind the dash
• Plenty of room for your hand around the knob
• Safer – Our roller action cannot jam
• US Patent No. 8,485,057