FAA-PMA Manufacturer of Quality Aircraft Parts Newsletter McFarlane Aviation Products February 2007

McFarlane Throttle, Prop, Mixture and Cowl Flap Controls
Solid metal construction Pilot friendly knobs Lifetime lubrication Low friction conduit Affordable price This month we highlight our push-pull type controls. McFarlane manufactures the highest quality controls available. Our solid metal construction and Teflon lined conduit provide precise positive control even after years of service in the harshest environments. The McFarlane attention to detail and quality is immediately evident even on our control knobs. All McFarlane controls use hand polished hard phenolic knobs to ensure a durable pilot friendly finish. We have controls FAA-PMA approved for most Cessna and Piper aircraft, and many Grumman and Bellanca aircraft. Visit our website or give us a call to find the controls you need at a price you can afford. When should I replace my engine controls? Indicators that a control may need to be replaced include rough or inconsistent motion, a weak or inconsistent friction lock, visible damage to the conduit or conduit coating, damage to the swivel joint, or a spongy or springy feel due to mushrooming of the inner cable. This is not a complete list, but any of the above indicators mean that the control should be inspected by a qualified mechanic who can make the final determination whether or not to replace the control. FAA Advisory Circular AC20-143 and the aircraft and engine manufacturers’ service manuals provide guidance for the inspection, installation and maintenance of engine controls. Engine controls also incur critical internal vibration wear that is difficult or impossible to inspect, therefore, they have a maximum service life equivalent to the engine’s recommended time between overhauls.
When should I replace my engine controls? Indicators that a control may need to be replaced include rough or inconsistent motion, a weak or inconsistent friction lock, visible damage to the conduit or conduit coating, damage to the swivel joint, or a spongy or springy feel due to mushrooming of the inner cable. This is not a complete list, but any of the above indicators mean that the control should be inspected by a qualified mechanic who can make the final determination whether or not to replace the control. FAA Advisory Circular AC20-143 and the aircraft and engine manufacturers’ service manuals provide guidance for the inspection, installation and maintenance of engine controls. Engine controls also incur critical internal vibration wear that is difficult or impossible to inspect, therefore, they have a maximum service life equivalent to the engine’s recommended time between overhauls.

MC600 Series Solid Wire Vernier Mixture Controls

· Approved for many Cessna, Piper, Beechcraft, Mooney, Maule and Stinson aircraft

· Precise mixture control for less!

· Extra long — Trim to exact length

· Minor alteration — Requires logbook entry only

 Installation Tip: The MC600 series mixture controls require a 3/4 inch instrument panel hole. Most aircraft have a 1/2 inch hole from the factory that must be enlarged before the installation of an MC600 series mixture control.
Installation Tip: The MC600 series mixture controls require a 3/4 inch instrument panel hole. Most aircraft have a 1/2 inch hole from the factory that must be enlarged before the installation of an MC600 series mixture control.

McFarlane Manufactures Custom Engine Controls

Custom engine controls can be manufactured for aircraft not listed in our catalog or on our website.  All McFarlane custom controls are built to customer provided speci­fications (dimensioned drawings or pattern controls).  They duplicate the original customer supplied controls in regard to length, thread size, wear sleeve locations, and travel length. 

McFarlane custom engine controls are manufactured using the same materials, rig­orous testing and inspections as our FAA-PMA products; however, custom controls are not FAA-PMA approved.  The user must obtain the proper FAA approvals to use our custom controls.

Custom control design forms are available, or you can send us a pattern with a signed statement requesting us to duplicate the control. Custom controls are nor­mally completed within one week.

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Questions or comments? Please contact us . . . McFarlane Aviation Products 696 E 1700 RD Baldwin City, Kansas 66006 http://www.mcfarlaneaviation.com 800-544-8594 (toll free) 785-594-2741 (phone) 785-594-3922 (fax) sales@mcfarlaneaviation.com