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Meeting	ACGS Committee Meeting 127 - San Diego, CA - November 2021
Agenda Location	9 SUBCOMMITTEE E – FLIGHT, PROPULSION, AND AUTONOMOUS VEHICLE CONTROL SYSTEMS 9.1 A Summary of Recent Piloted Simulation Work to Develop High Speed Rotorcraft MTEs
Title	A Summary of Recent Piloted Simulation Work to Develop High Speed Rotorcraft MTEs
Presenter	Dave Klyde
Affiliation	Systems Technology Inc.
Available Downloads*	none
	Downloads are available to members who are logged in and either Active* or attended this meeting.
Abstract	Updates to the military rotorcraft handling qualities specification are being considered that address the high-speed flight regime envisioned for the Future Vertical Lift platform of the US Army. A team that features industry and academia have developed and evaluated a set of Mission Task Elements (MTEs) that are defined to address VTOL high-speed handling qualities. Following the mission-oriented approach upon which ADS-33E-PRF is based, the MTEs were designed to meet different levels of precision and aggressiveness. Tracking and attitude capture and hold MTEs were derived from fixed wing analogs that have long been used to evaluate aircraft handling qualities. Break turn and acceleration/deceleration MTEs were also defined. The MTE objectives, descriptions, and performance criteria were assessed and refined via several checkout piloted simulation sessions. Formal evaluations were then conducted by Army test pilots at four simulator facilities, each featuring a unique high-speed platform including a generic winged compound helicopter, two tiltrotor configurations, and a compound helicopter with coaxial rotors. To aid in the MTE evaluation process, baseline VTOL configurations were varied to achieve different handling qualities levels. Quantitative measures based on task performance and qualitative measures based on pilot ratings, comments and debrief questionnaires were used to assess MTE effectiveness. The piloted simulation results demonstrated that the MTEs provided an effective means to discern handling qualities in high speed flight.