McKECHNIE AEROSPACE INTRODUCES LONGER-LIFE VENTILATION FAN FOR LEAR 20 & 30 SERIES AIRCRAFT

New brushless design quadruples longevity of cabin ventilation fan

FEBRUARY 6, 2004 … Electromech Technologies, a member of the McKechnie Aerospace Electromechanical Group, has received PMA approval for and is now offering a new, longer life Ventilation Fan designed for use in all Lear Jet 20 and Lear Jet 30 Series aircraft. The new brushless fan is an FAA approved form/fit/function replacement for the existing fans (P/N EM608), which were originally designed by the company as an OEM part for the popular series of Lear aircraft. The new-generation replacement fan takes advantage of brushless motor technology and other technological advancements to extend the MTBF (Mean Time Between Failure) of the “heart” of the cabin ventilation system from an average of 600 hours to a tested life of over 2000 hours. According to Greg Jessup, Vice President of Product Development for Electromech, McKechnie Aerospace is offering new units from stock and in addition will be offering an exchange program allowing customers to receive a “core” credit for their existing EM608 fans.

The new fan offers many improvements over the original 20-year-old design, the most notable being the brushless DC motor with integrated drive electronics. Replacing the brush motor does more than eliminate brush wear; it also reduces electrical and audible noise by eliminating the mechanical commutation of the brush motor. Without brush dust, the motor remains clean throughout the life cycle, greatly extending the bearing life. As an added measure, Electromech has increased the size and ABEC rating of the bearings, assuring a much greater life of the only wearing component in the assembly. In addition, the Brushless DC motor is lighter and more efficient than the brushed motor, reducing the unit weight by 15% (.5 pounds) even with the integrated drive electronics. The current consumption is reduced by 10%.

The McKechnie Aerospace Electromechanical Group designs, manufactures, and services flight-control linear and rotary actuators and systems, landing gear actuators, blowers, motors, integrated electro-mechanical assemblies and PMA parts. As part of McKechnie Aerospace, the Electromechanical Group —consisting of heritage companies Electromech, Encore, and Welco — provide today’s aircraft OEMs and operators with integrated, innovative solutions and reduced cost of operation through a process the company calls Solutioneering.

For more information on the unit, contact: Michael King, King Group. Phone: 80contact: Michael King, King Group. Phone: 805.462.3000. E-mail: mking@kinggroup.com  62.3000. E-mail: mking@kinggroup.com

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