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


III.D.16. Rotary-Wing Structures Technology (RWST). By FY01, fabricate and demonstrate advanced lightweight, tailorable structures and ballistically tolerant airframe configurations that incorporate state-of-the-art computer design/analysis techniques, improved test methods, and affordable fabrication processes. The technology objectives are to increase structural efficiency by 15 percent, improve structural loads prediction accuracy to 75 percent, and reduce costs by 25 percent without adversely impacting airframe signature. By 1998, develop and demonstrate manufacturing process feedback algorithms to actively control the cure state of composite resins to reduce problems with porosity, degree of cure, and fiber volume fraction. By 1999, demonstrate fully composite primary structural joints to reduce the manufacturing labor for large composite components and increase the structural efficiency. Also, by 1999, provide validated strength and fatigue life methodologies for rotorcraft composite structures. Demonstrate, by 2000, adaptive, out-of-autoclave tooling with preferential heating to optimize the cure cycle of co-cured composite elements of highly variable thickness. Exploit emerging technologies in nondestructive inspection, miniature sensors for manufacturing process control, and modeling/virtual prototyping for reducing development time and cost. Demonstrate by FY01 advanced airframe sections which are tailored for structural efficiency, affordable producibility, and field supportability. These goals support the systems payoffs of 55 percent increase in range or 36 percent increase in payload, 20 percent increase in reliability, 10 percent improvement in maintainability, 6 percent reduction in RDT&E costs, 15 percent reduction in procurement costs, and 5 percent reduction in O&S costs for utility type rotorcraft.

Supports: Primary emphasis provides technology options to the UH-60, AH-64, Improved Cargo Helicopter (ICH), RAH-66 and SOA upgrades, future air vehicles [Joint Transport Rotorcraft (JTR)], collaborative technology; and the Battle Lab OCRs (EEL, CSS, DSA, DBS and MTD). Contributes to RWV TDA objectives, goals, and payoffs.

STO Manager: TSO: TRADOC POC:
Graydon Ellicott Drew Orlino Glenn Harrison
ATCOM/AATD SARD-TT U.S. Army Aviation
(804) 878-5921 703-697-8434 334-255-2703