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

A.III.D.03. Advanced Rotorcraft Transmission - II (ART-II). Demonstrate a "quantum leap" in transmission system technology through the integration of emerging technologies in materials, structures, mechanical components, dynamics, acoustics, lubrication, and manufacturing processes. ART Phase II will utilize advanced component technologies such as split torque transmission design, improved gear tooth geometry, low volume lube systems, and corrosion resistant housing materials, which have been developed under ART Phase I, industry IR&D, or RDT&E 6.2 programs, and integrate them into a full-scale demonstration of critical transmission subsystems. Candidate subsystems include: lube system/accessory drives, input module, tail rotor drive system, or main gear box. Technologies will be demonstrated through detail design (by FY98), fabrication (by FY99), and subsystem performance/endurance/noise testing (by FY00). The specific technology objectives to be demonstrated under ART Phase II by FY00 will be: 25 percent weight reduction, 10 dB noise reduction, increase in MTBR to 12,000 hours, and improved producibility. In terms of warfighting capabilities/payoffs, ART Phase II technology will provide: 15 percent increase in range or 25 percent increase in payload from an AH-64 baseline, significantly improved readiness, and improvements in maneuverability/agility and O&S cost reduction.

Supports: Joint Transport Rotorcraft (JTR), AH-64 Enhanced Apache, RAH-66 Comanche, system upgrades, Naval aircraft (Common Light Vertical System Replacement), EELS, D&SA, MBS and CSS Battle Labs, and Dual-Use Potential for both general/commercial aviation.

Hank Morrow Drew Orlino Ted Hundley
ATCOM/AATD SARD-TT U.S. Army Aviation Center and School
804-878-4130 703-697-8434 334-255-2571