AFFTC/PKA Directorate of Contracting, 5 S Wolfe Ave, Edwards AFB CA 93524-1185

66 -- FREQUENCY/VOLTAGE LEVEL SHUT-DOWN SYSTEM(SDS) SOL# F04700-96-T-5699 SOL F04700-96-T-5699 DUE 061896 POC Cheryle Fowler, Purchasing Agent, (805)277-3900 x2247 John Adair, contract Officer, (805)277-3900 x2230. The Air Force Flight Test Center has an immediate requirement for a Frequency/Voltage Level Shut-Down System(SDS). (1) The Frequency/ Voltage Level Shut-Down System(SDS) shall be used to monitor the health of a turbopump fed LOX/LH2 Rocket Engine. The sensors used to monitor this health would be accelerometers and magnetic pick-offs and proximity sensors. (2) Accelerometers mounted on Rocket Engine Turbopump casings will measure vibration, Magnetic pick-offs will sense turbine speed. The information from these sensors will be feed into the SDS. Based on programmed settings the SDS shall decide if the rocket engine needs to be shut down or allowed to keep running. (3) The SDS shall accept and process vibration and frequency data from acceleration and rotary sensors. (4) The SDS shall have the following features: (4.1) Standard 19'' rack mounting with slide out lifting rails. (4.2) Operate a minimum of 26 instrumentation channels, at a minimum of 6 channels per rack with 12 channels or more per rack desired, for a recorded test duration of 40 seconds. Each channel shall have: (4.2.1) Both low and high alarm outputs. (4.2.2) Programmable time enable/disable, up to two cycles each. (4.2.3) An Output Isolate switch, with front panel lamp indication. (4.2.4) An adjustable 0-5v 0pk setpoint with calibrate/verify. (4.2.5) Variable sampling rate from 1 to 10,000 samples per second. (4.2.6) Capability to accept a 0-10,000 Hz accelerometer signal with spectral hat alarming capability of +/-50Hz minimum. (4.3) Multi-sense trip must sense up to 3 consecutive out of tolerance samples before an Alarm (shut-down) is initiated to preclude a ''spike'' giving a false shut-down. (4.4) Variable frequency generator for trip setting/verification. (4.5) Fast decision gates (100ms) including relay closures. (4.6) Adjustable Low Pass, and Band Pass, and High Pass filters. (4.7) Front panel lamps indicating when each channel is: (4.7.1) Enabled via Output Isolate switches. (4.7.2) Out of tolerance and near set tolerance level. (5) The SDS may optionally have the following features: (5.1) Connection to Local Area Network (LAN). (5.2) Programmable setup/verify via Personal Computer. The Air Force Flight Test Center intends to purchase item from Boyce Engineering, 10555 Rockley Road, Houston, Tx 77099 unless responses to this notice reveal additional sources capable of supplying all item with equivalent specifications. The Simplified Acquisition Procedure (SAP) will be used in awarding this contract by written quotation. Interested sources must submit clear and convicing documentation to demonstrate their ability to meet the Government's requirement to Cheryle Fowler AFFTC/PKAB, 5 South Wolfe Ave, Edwards AFB, CA 93524-1185. Fax responses to (805)258-7810. See Note 22. Telephone requests to be placed on the mailing list will not be honored. (0169)

Loren Data Corp. http://www.ld.com (SYN# 0310 19960618\66-0002.SOL)