Product Details
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Potential Alternate: FAA-PMA Approved Buttonless Vernier-Assist now available for your throttle! Not only do we offer an extended line of FAA-PMA approved controls, our breakthrough Vernier-Assist design is now approved on throttle controls for Cessna, Piper, Beechcraft, Grumman, and Bellanca. You asked for it and now we have it! Fine adjustments are made by rotating the knob clockwise or counterclockwise and coarse adjustments by pushing and pulling without the hassle of a release button. The McFarlane Vernier-Assist™ Throttle Controls use a patented roller action.
Part Numbering Note:Part numbers for Vernier-Assist™ are the same as McFarlane’s original push-pull FAA-PMA approved controls, except the “MC” prefix changes to “MCVA“. Examples: Standard Push-Pull P/N MC9863056-2 or Vernier-Assist™ P/N MCVA9863056-2 Standard Push-Pull P/N MCS1222-1S or Vernier-Assist™ P/N MCVAS1222-1S Standard Push-Pull P/N MCC299505-0101 or Vernier-Assist™ P/N MCVAC299505-0101 Please verify product details for suitability for your application. |
McFarlane Push-Pull Controls
McFarlane offers FAA-PMA approved throttle, propeller, mixture, cowl flap, carb heat, and cabin environment controls for many single engine Cessna, Piper, Grumman and Bellanca aircraft. We also have a wide variety of controls for use on non-certified aircraft.
Please view the Eligibility Chart or click “View Eligible Aircraft” above to determine the correct part number for your specific aircraft.
See the Customer Testimonials page for what others say about McFarlane controls.
Our engine and propeller controls incorporate a number of unique features that make McFarlane Controls the highest quality engine and propeller controls on the market:
- All metal construction
- Pilot friendly knobs
- Lifetime lubrication
- Superior low friction conduit
- Custom controls available
- Recommended Control Cleaning Instructions
Metal Construction
Unlike the controls of our competitors that use plastic, McFarlane control fittings and components are made from stainless steel, plated steel, anodized aluminum, and brass. Our Vernier control locking devices are precision formed and heat treated in critical wear areas.
A Superior Conduit System
Our controls have low-friction smoothness and flexibility, even when routed with multiple tight bends. This superior conduit allows for a tighter bend radius without interfering with the controls function, we recommend a 3” minimum bend radius during control routing. Our conduits are made from carbon steel wire, specially formed for increased strength and smooth inside diameter. Two of these wires are coiled in tandem for increased tensile strength. A Teflon jacket extruded over the coiled housing provides additional strength and wear-resistance. A virgin Teflon® liner in the center of the conduit reduces friction and ensures reliable operation.
Knobs Make a Difference
Our “pilot friendly” knobs are all compression molded from a reinforced aluminum or phenolic. Unlike the soft injection molded knobs of our competitors, our knobs are hard and thermally stable. They’re powder coated, scratch-resistant, and do not deteriorate. McFarlane knobs meet the latest F.A.R. requirements for shape and color.
Vibration Dampening Features
Our metal swivel joints have a unique Viton® rubber vibration dampening sleeve with a spring load system that dampens engine induced vibration in the push rod guide tube and metal swivel joint. Molded Viton® boots are also used on the push rod guides to seal out contaminates. The Viton® rubber withstands the high temperature of the engine environment while resisting degradation from oil and solvents. This system drastically reduces the wear that leads to premature control failure.
Special Lubrication
McFarlane controls have a special lifetime lubrication applied to critical sliding surfaces, made from a molybdenum disulfide and Teflon® based lubricant with a synthetic grease base. Our lubricant will reduce friction and prevent galling and contamination locking of the control components from -70 deg F to over 1000 deg F.
Consistent Quality
The assembly of McFarlane engine controls is interrupted many times for inspections of all critical elements to ensure only the highest quality controls are produced. Each inner wire swage, each push rod, each conduit fitting and terminal is inspected by our assembly team. As a further measure of quality, a second inspector also checks each critical detail to make sure only controls of the highest quality pass inspection. Attention is given to every detail at McFarlane Aviation. For instance, we verify the torque required to operate every vernier control to ensure it operates properly and has that smooth feel our customers have come to expect.
Tough in any Environment
The McFarlane controls have an outstanding performance and reliability record in all environments; we test them in the harshest environments to ensure they will provide a long and reliable service life. Bush pilots prefer our controls because they work freely at 50 deg below zero and have proven solidarity in harsh salt-water. Temperatures approaching the melting point of the steel components cannot stop McFarlane controls from functioning.
Time Tested
With over 25 years of experience building aircraft engine controls and with thousands of units in airplanes flying on every continent (yes, even Antarctica), McFarlane controls are universally recognized for their high quality products and proven track record.
Recommended Service Life
Considering the operating environment and criticalness of engine controls, our maximum recommended in-service time for McFarlane engine controls is equal to the maximum time between engine overhauls, as recommended by the engine manufacturer.
Vernier-Assist™
McFarlane’s patented Vernier-Assist™ offers the pilot precision control of the engine, unlike anything else on the market! The Vernier-Assist assembly operates on friction alone by simply turning the knob, with no threads or locking balls/pins. It also allows for normal coarse movement by pushing in or out on the knob. – Unlike standard threaded vernier controls, this design cannot be jammed. The friction control provides smoothness and precision when operating the throttle and a friction lock secures the control in position, but it can be easily overridden in the case of an emergency. It is now FAA-PMA approved and SAFE!
Custom Engine Controls
Custom engine controls can be manufactured for aircraft not listed in the approved application charts. All McFarlane custom control cables are built to customer provided specifications. McFarlane custom engine controls duplicate the original customer supplied controls in regards to length, thread size and pitch, wear sleeve locations, and travel length. McFarlane custom controls are manufactured to the same standards using the same materials, rigorous testing and inspections as our FAA-PMA products. Custom controls are not FAA-PMA approved. For ordering details, go to the Custom Engine Control Page.
US Patent No. 8,485,057 B1
Eligible Aircraft
| Make | Model | Start S/N | End S/N | Qty/Aircraft | Location | Eligibility Chart |
|---|---|---|---|---|---|---|
| Cessna | TU206G | U20604650 | U20607020 | 1 | Throttle | 1197 |
| Cessna | U206G | U20604650 | U20607020 | 1 | Throttle | 1197 |
| Cessna | 210N | 21062955 | 21064135 | 1 | Throttle | 1197 |
| Cessna | 210N | 21064136 | 21064897 | 1 | Throttle | 1197 |
| Cessna | P210N | P21000151 | P21000834 | 1 | Throttle | 1197 |
| Cessna | T210N | 21062955 | 21064135 | 1 | Throttle | 1197 |
| Cessna | T210N | 21064136 | 21064897 | 1 | Throttle | 1197 |
Part Number Information
Supersedes Part Numbers
9863055-2 (Textron, Inc.) | 9863056-2 (Textron, Inc.) | 252-085-3 (Textron, Inc.)
Cross-reference information
Cross Reference Reference only: Please verify the product is eligible for your aircraft before adding to your cart. OEM Part Number McFarlane Part Number Comment 9863055-2 MC9863056-2 9863056-2 MC9863056-2 252-085-3 MC9863056-2
Additional product information
Approval: FAA PMA SupersedesPartNumber: 9863055-2 (Manufacturer: Textron, Inc.) SupersedesPartNumber: 9863056-2 (Manufacturer: Textron, Inc.) SupersedesPartNumber: 252-085-3 (Manufacturer: Textron, Inc.)
Frequently Asked Questions
My Vernier-Assist Throttle control came apart during installation or maintenance. Can it be put back together?
Yes, this is common and can put back together, provided no components are missing.
Why is my new engine control too long/short?
There are several things that could be different such as engine/aircraft modifications, rigging/clocking of control arm or adjustment of rod end will be needed, placement of clamps or brackets may be different, or a previous installation change such as routing from original.
What is the minimum bend radius for my engine control?
McFarlane's Storage and Packaging Specification requires a specific packaging minimum radius based on the length of the control, type of wire used, and the configuration of the control end(s). Please contact us to determine the exact requirements for your specific control.
I purchased a laser engraved knob and the thickness of the marking is very shallow. What kind of wear resistance can I expect?
The laser marking does not harm the hard durable anodize coating on the aluminum knob. The CO2 laser process only bleaches the color from the anodizing leaving a silver white color that contrasts with the surrounding dyed anodize. The durability of the laser marked area is not affected by the laser. Our tests have shown that the laser process actually improves the corrosion resistance of the anodize layer. The CO2 laser engraves aluminum knobs by vaporizing the surface leaving a deep durable groove. This groove is then filled with a special paint for contrast. The result is a durable long lasting mark.
How do I clean and sanitize a McFarlane Push-Pull Control?
We make the following cleaning and sanitizing recommendations to be completed between flights: Recommended Cleaning Process 1. Put on clean disposable gloves prior to cleaning and disinfection. 2. Pull controls back to the fully retracted position to expose the full length of the control shafts. 3. Apply isopropyl alcohol to a clean microfiber towel. Do not spray any solution directly on the controls or any other surfaces or components in the aircraft. !!! WARNING: DO NOT USE BLEACH WIPES ON ANY MCFARLANE CONTROL !!! 4. Gently and thoroughly wipe down every control knob surface and control shaft. 5. Let cleaning solution dry on these surfaces (contact time). 6. Use a clean and dry microfiber cloth to wipe away any solution residue left on knob and control shaft surface. 7. Remove all gloves, towels, and cleaning supplies from the work area in the aircraft. Please contact McFarlane Sales directly at 866-920-2741 or 785-594-2741 or sales@mcfarlaneaviation.com if you have any additional questions regarding the disinfection of our controls.
