McFarlane Aviation Products FAA-PMA Replacement Aircraft Parts

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X Category: Universal Vernier-Assist Controls

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

 

  • Light weight and compact behind the dash
  • Good hand space around the knob
  • Safer - our roller action cannot jam
  • US Patent No. US 8,485,057 B1
  • Assembly Video

 

 

MCVA Series Controls:
Available in a variety of standard lengths or custom fabricated to your unique requirements.

 

Installation Instructions:
- Control with threaded end
- Control with wire end

 

Control with 0.061" diameter solid wire end:
Order part number MCVA0241-03-LLL (LLL = length in inches)

  • Knob is not included. Requires a knob with 1/4-20 thread.
  • Available in 4, 6 and 10 foot lengths
  • May be trimmed to length
  • Requires a 3/8" panel hole
  • Ideal for aircraft with tight space constraints! Extends about 3.5 inches behind the dash.

Control with 10-32 threaded end:
Order part number MCVA1035-20-LLL (LLL = length in inches)

  • Knob is not included. Requires a knob with 1/4-20 thread.
  • Available in 3, 4, 5, 6, 7 and 8 foot lengths
  • Vernier and friction lock
  • Requires a 3/4" panel hole

Control with 1/4-28 threaded end:
Order part number MCVA2035-20-LLL (LLL = length in inches)

  • Knob is not included. Requires a knob with 1/4-20 thread.
  • Available in 3, 4, 5, 6, 7 and 8 foot lengths
  • Vernier and friction lock
  • Requires a 3/4" panel hole

Control with 5/64" diameter 1x7 twisted stainless steel wire end:
Order part number MCVA3035-20-LLL (LLL = length in inches)

  • 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

Dual Control with 1/16" diameter 1x7 twisted stainless steel wire ends:
Order part number MCVA0005-30DLLL (LLL = length in inches)

  • 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 6408 Hardware Kit
  • Perfect for Rotax 912/914 engines!
Part Number Description Your Price Stock
6518 ROLLER PIN, Vernier-Assist $3.44
6730 KNOB, Propeller, Vernier-Assist $21.74
MCVA0005-30D048 CONTROL, Vernier-Assist, Dual, 4'
Free Shipping on orders over $500 		$268.16
MCVA0005-30D072 CONTROL, Vernier-Assist, Dual, 6'
Free Shipping on orders over $500 		$278.24
MCVA0005-30D096 CONTROL, Vernier-Assist, Dual, 8'
Free Shipping on orders over $500 		$288.31
MCVA0005-30D144 CONTROL, Vernier-Assist, Dual, 12'
Free Shipping on orders over $500 		$298.37
MCVA0241-03-048 CONTROL, Vernier-Assist, 4'
Free Shipping on orders over $500 		$212.66
MCVA0241-03-072 CONTROL, Vernier-Assist, 6'
Free Shipping on orders over $500 		$219.22
MCVA0241-03-120 CONTROL, Vernier-Assist, 10'
Free Shipping on orders over $500 		$232.30
MCVA1035-20-036 CONTROL, Vernier-Assist, 3'
Free Shipping on orders over $500 		$224.12
MCVA1035-20-048 CONTROL, Vernier-Assist, 4'
Free Shipping on orders over $500 		$232.64
MCVA1035-20-060 CONTROL, Vernier-Assist, 5'
Free Shipping on orders over $500 		$241.14
MCVA1035-20-072 CONTROL, Vernier-Assist, 6'
Free Shipping on orders over $500 		$249.65
MCVA1035-20-084 CONTROL, Vernier-Assist, 7'
Free Shipping on orders over $500 		$258.16
MCVA1035-20-096 CONTROL, Vernier-Assist, 8'
Free Shipping on orders over $500 		$266.67
MCVA2035-20-036 CONTROL, Vernier-Assist, 3'
Free Shipping on orders over $500 		$224.12
MCVA2035-20-048 CONTROL, Vernier-Assist, 4'
Free Shipping on orders over $500 		$232.64
MCVA2035-20-060 CONTROL, Vernier-Assist, 5'
Free Shipping on orders over $500 		$241.14
MCVA2035-20-072 CONTROL, Vernier-Assist, 6'
Free Shipping on orders over $500 		$249.65
MCVA2035-20-084 CONTROL, Vernier-Assist, 7'
Free Shipping on orders over $500 		$258.16

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