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Borealis Exploration Limited Message Board

  • frogfather44 frogfather44 Jan 15, 2012 7:56 PM Flag

    It seems there will be compition for wheel tug

    Wheel tug is ahead. Safran and Honeywell don't expect to role them out until 2016.


    Safran and Honeywell launch electric taxiing system tests

    http://www.airtrafficmanagement.net/view_news.asp?ID=4434

    Honeywell and Safran have commenced the first rolling tests for their electric green taxiing system.
    The electric green taxiing system is designed to significantly improve airline operational efficiency and provide environmental benefits by slashing the carbon and other emissions created during runway taxi operations.
    Using the Auxiliary Power Unit (APU) generator to power motors in the main wheels, the system allows aircraft to taxi without requiring the use of aircraft engines. Each of the aircraft’s powered wheels is equipped with an electromechanical actuator, while unique power electronics and system controllers give pilots total control of the aircraft’s speed, direction and braking during taxi operations.
    This first set of tests, run in Montpellier, will take place on an A320 and will serve to evaluate runway conditions and calculate the necessary loads needed for moving the aircraft on the ground.

    The expected benefits of this system include:

    • Lower Fuel Burn – As taxi operations burn a significant amount of fuel—as much as five million tons of fuel per year for short-haul aircraft—the electric green taxiing system can result in savings of up to 4% of total block fuel consumption.

    • Improved On Time Performance – Aircraft equipped with the system will be able to “pushback and go” more quickly, thus reducing both gate and tarmac congestion, improving on-time departure performance and saving valuable time on the ground.

    • Greener Operation – The electric green taxiing system greatly reduces engine emissions, resulting in lower carbon taxes.

    • Added Value – System operation eliminates the need for aircraft pushback and aircraft repositioning via tug tractor while also reducing brake wear, extending main engine life, enhancing ground crew safety, and reducing noise in the airport environment.

    The initiative was first announced at the Paris Airshow in June 2011, where Honeywell and Safran signed a memorandum of understanding to create a joint venture company to deliver innovative new electric green taxiing system solutions for new and existing aircraft.

    Yves Leclère, Safran Executive Vice President, Transformation said, “Safran’s extensive experience in integrated landing gear systems combined with Honeywell’s avionics and APU breadth is an ideal match for rapidly bringing to market an innovative solution which makes business and environmental sense for both airlines and airports.”

    This initial series of tests, to be undertaken in Montpellier, France, on a recently acquired A320, will serve to evaluate runway conditions and calculate the necessary loads needed for moving the aircraft on ground. The team is currently focused on prototyping and component level testing, prior to targeted system installation and ground testing in 2013.

    “Reducing fuel costs and maximizing operational efficiency are top priorities for our customers”, said John Bolton, President, Honeywell’s Air Transport and Regional business. “The start of the electric green taxi testing takes us one step closer to bringing this technology to market, and ultimately to helping to save our customers several hundred thousand dollars per aircraft per year.”

    The system is particularly attractive for airlines that operate high cycle single aisle aircraft. Honeywell and Safran are targeting to offer the electric green taxiing system either on new aircraft or as a retrofit solution to in-service aircraft as early as 2016.


    Wheel tug has a wide open window as yet, but better not dawdle.

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