Annex A. Science And Technology Objectives (STOs)
Army Science and Technology Master Plan (ASTMP 1997)

A.III.D.04. Helicopter Active Control Technology (HACT). Demonstrate Helicopter Active Control Technology (HACT), i.e., second generation digital fly-by-light control systems, integrated fire/fuel/flight control, multi-mode Stability Control Augmentation System (SCAS) for carefree maneuvering, and define Handling Qualities (HQ) Criteria for National Transport Rotorcraft (NTR). Current vertical lift aircraft pilot and flight management workload inhibits pilot situational awareness and response and directly impacts night, adverse weather, and low altitude operations. Lack of complete control integration (fire/flight/fuel) prevents exploitation of full air vehicle capabilities; restricts maneuverability/agility, impacts safety and survivability. By FY99, develop concepts and demonstrate via simulation; by FY00, complete hardware design, fabrication, and component test; by FY01, demonstrate via hardware-in-the-loop simulation simplified redundancy management schemes and improved V&V techniques; by FY02, demonstrate via flight test the integration of active control technology through application of systematic, robust control law design methods and fault tolerant architectures to improve cargo and utility class rotorcraft slung load handling qualities to a Cooper-Harper rating of 4; increase bandwidth 70 percent for gust rejection capability; improve weapon platform pointing accuracy 60 percent; reduce envelope maneuvering margins 66 percent.

Supports: JTR, system upgrades and Dual-Use; RAH-Comanche, AH-64 Enhanced Apache, EELS, D&SA, MBS Battle Labs.

Wayne Mantay Drew Orlino Ted Hundley
ATCOM/AFDD SARD-TT U.S. Army Aviation Center and School
804-864-3953 703-697-8434 334-255-2571