Commander, Naval Air Warfare Center Weapons Division, Code 210000D, 1 Administration Circle, China Lake, CA 93555-6100

A -- MODIFICATION OF ROLL CONTROL ACTUATORS SOL N68936-99-R-0009 POC Maggie Green, Contract Specialist, (760) 030-4274 The Naval Air Warfare Center Weapons Division, China Lake, CA 93555-6100 intends to procure the modification, testing, and delivery of five (5) Government furnished Phoenix Servo actuators. The servo actuators shall be modified to conform with the following requirements: (1)Operating fluid: JP-10 liquid hydrocarbon fuel in accordance with MIL-P-87107; (2)Fluid supply pressures: (a) actuator inlet: 650 +/150 PSIA (b)actuator outlet: 50 PSIA maximum; (3)Structural design pressures: (a)Operating: 700 PSIA (b)Proof: 1050 PSIA minimum (c)Burst: 1400 PSIA minimum (4)Output shaft rotation angle is +/- 28 degrees minimum; (5)Stall torque shall be 252 in-lbs minimum at the 28 degree position (600 PSIA inlet and 50 PSIA outlet pressures; (6)Dynamic response: (a)Frequency response: The closed loop small signal angular position response shall be 30 Hz minimum. The phase angle shall be no greater than 90 degrees at 30 Hz, and the amplitude ratio shall not exceed +/- 3 dB maximum from 0 to 30 Hz (b)Step response: For a 3.2 degree step command, the time to settle to with +/- 10% of the commanded position shall be 14 milliseconds maximum. The overshoot shall be bounded from 5% to 15%. This response requirement applies (for 3.2 degree steps) throughout the full range of actuator rotation (c)Steady state slew rate: 200 deg/sec minimum (for step commands of 5.0 degrees or greater). This requirement applies with an opposing torque of 180 in-lbs; (7)Electrical interface: Electrical connector is to be determined by the contractor. Input command shall be 0 to +/- 100 mA maximum. A synchro, resolver, rotational variable displacement transducer (RVDT) or potentiometer may be used for the feedback device; (8)Operating environment: (a)Storage temperature: +45F to +100F (b)Air temperature: 1240 degrees maximum (c)Fuel temperature: +45F to +200F. The preceding requirements are an abbreviated version of the full specification. The complete Statement of Work and specifications will be included in the Request for Proposal. One actuator will be used for qualification testing and will be subjected to all performance testing including vibration. The remaining units will be designated as flight hardware and will be subjected to all performance testing with the exception of vibration. In addition, the contractor will deliver an interface control drawing, acceptance test data, and a mathematical model (transfer function) that describes the performance of the servo actuator. Supplier must have the expertise and capability to complete this effort per government requirements. The estimated award date is January 29, 1999 with delivery within 20 weeks after contract award. All interested sources should submit requests in writing to the address shown above, or telefaxed to the Contract Specialist at (760) 939-7510. See Note(s): 26. Posted 10/27/98 (I-SN265864). (0300)

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