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Meeting	ACGS Committee Meeting 110 - Auburn, Maine - October 2012
Agenda Location	7 SUBCOMMITTEE E – FLIGHT, PROPULSION, AND AUTONOMOUS VEHICLE CONTROL SYSTEMS 7.3 Enhanced Engine Control for Emergency Operation
Title	Enhanced Engine Control for Emergency Operation
Presenter	Jonathan Litt
Affiliation	NASA Glenn Research Center
Available Downloads*	presentation
	Downloads are available to members who are logged in and either Active* or attended this meeting.
Abstract	The development and evaluation of enhanced propulsion control modes for emergency operation of aircraft are discussed. Fast Response and Overthrust modes were implemented to assess their ability to help avoid or mitigate potentially catastrophic situations, both on the ground and in flight. Tests were conducted to determine the reduction in takeoff distance achievable using the Overthrust mode. Also, improvements in Dutch roll damping, enabled by using yaw rate feedback to the engines to replace the function of a stuck rudder, were investigated. Reduction in pilot workload and the ability to handle the impaired aircraft on approach and landing were studied. The results showed that stability and control improvement is possible using these enhanced propulsion control modes.