Commander, U.S. Army Missile Command, RDEC Procurement Office, Redstone Arsenal, AL 35898-5275

A -- DYNAMIC FIN LOADER SOL DAAH03-96-X-R074 DUE 083096 POC (RDPC) Camille Jones, Contract Specialist, 205-876-3080, AMSMI-AC- CRAX, Raymond Shores, Contracting Officer, 205-876-3432, Synopsis Number R074-96. DYNAMIC FIN LOADER - POTENTIAL SOURCES SOUGHT DUE 083096. The U.S. Army Redstone Technical Test Center (RTTC) is seeking information from industry regarding capabilities available for construction of a Dynamic Fin Loader (DFL). The DFL will be used for closed-loop hardware in the loop testing of missile control sections (Control Surfaces/Actuators) that are driven by electro-mechanical servos or pneumatic actuators. The DFL shall provide a torque against each fin shaft (four orthogonal fins) which is proportional to the aerodynamic forces acting against the control surfaces during actual missile flight. The torque loads acting against the fin shafts are referred to as hinge moments. The load torque to be applied to the fin shafts must be dynamically controlled (in either direction) and updated at rates up to 500 Hz. The fin shafts must be able to travel their full 25 degrees of rotation with the opposing torque applied (i.e., The load ''motor'' must be able to rotate in the opposite direction from its commanded torque direction). The DFL must accommodate two missile Control Actuator Systems (CAS) . CAS #1 has a stall torque of 5000 oz-in with the normal operating hinge moments varying between +/- 1000 oz-in. CAS #2 has a stall torque of 225 oz-in with the normal operating hinge moments varying between +/- 100 oz-in. A re-configurable DFL with different size/type load ''motors'' for CAS #1 and CAS #2 is acceptable. The DFL must accept CAS mounting fixtures from 4 to 12 inches in diameter. The DFL coupling shafts and loads shall be designed to minimize cogging torque, static (no commanded load) torque, and backlash. The DFL shall allow for calibration of each load. Potential offerors should also provide information to the following: 1) Size and status of your company. 2) Previously produced equipment for similar applications. 3) Description of DFL design concept. 4) ROM cost estimate and approximate delivery time. The information contained herein is for planning purposes only and does not constitute a request for proposal. Solicitation documents are not available. Technical point of contact is Sharon Mueller-Myers, 205/876-5642. Proprietary data will be protected when properly marked. Interested offerors should respond by submitting answers to the questions and company information to the contracting officer. Responses are requested no later than 083096. (0191)

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