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Meeting	ACGS Committee Meeting 100 - Cocoa Beach - October 2007
Agenda Location	4 GENERAL COMMITTEE TECHNICAL SESSION 4.1 Research Institutions, Industry, and University Reports 4.1.1 Research Institutes and Companies 4.1.1.6 Hoh Aeronautics
Title	Hoh Aeronautics
Presenter	Dave Mitchell
Available Downloads*	presentation
	Downloads are available to members who are logged in and either Active* or attended this meeting.
Abstract	HAI is in the first year of a two-year Phase II SBIR for NAVAIR investigating updates to the helicopter handling qualities specification ADS-33E-PRF for maritime, heavy lift, and UAV rotorcraft. A key subject for investigation is development of a method for evaluating handling qualities for shipboard operations. Actual shipboard recovery and departure is a highly variable environment, with ship size, sea state, and visual conditions all coming into play. A safe, repeatable task is needed to attempt to replicate all of these variables. A viable candidate, the “Superslide” developed at the Canadian National Research Council, was developed in the late 1990’s but has not been validated as a surrogate task. HAI and NRC conducted a jointly-funded two-week flight evaluation of the Superslide in July of 2007. Two premises going in to the test were that 1) handling qualities would degrade with increasing task difficulty (effectively, increasing Sea State), and 2) handling qualities would improve with increased stabilization. The first premise was verified, but the second was not: overall, Handling Qualities Ratings (HQRs) degraded consistently for the three sets of dynamics used in the evaluations. A ground-based investigation will be performed early in 2008 on the NASA Ames Vertical Motion Simulator to look at the Superslide/ship differences. HAI has recently signed a new contract with NASA under a NASA Research Announcement to develop criteria for identifying the effects of time-varying helicopter dynamics on pilot control. This two-year contract, with Systems Technology, Inc., as Co-Investigators, will include a multi-week simulation on the VMS. HAI’s HeliSAS, now a commercial product from Chelton Flight Systems, will have FAA certification early in 2008 and will be available initially for the Robinson R44. Work has begun to develop HeliSAS for the Bell 206 as well.