49 -- MARKET RESEARCH OF LOAD MANAGEMENT SYSTEM

Notice Date

March 29, 2001

Contracting Office

Commander, U. S. Army Aviation & Missile Command, Acquisition Center, Buiding 5303, Redstone Arsenal, AL 35898-5280

ZIP Code

35898-5280

Solicitation Number

DAAH23-00-0-0000

Response Due

April 16, 2001

Point of Contact

Mary C. Dickens, Contracting Officer, FAX (256)842-6302

Description

The U. S. Army Aviation and Missile is researching the market for commercial or modified commercial Load Management Systems (LMS) that meet the following specifications. The item will be used for the T55-GA-714A engine test cell at Corpus Christi Army Depot. This LMS system must consist of a Dynamometer, Torque Reaction Sensor (TRS), Adapter Plate , Quill Shaft and a Thermocouple . This system must be able to bolt to an existing T55-GA-714A currently used by Corpus Christi Army Depot (CCAD). System must be able to manage and control at a minimum, a. 6000 Shaft Horsepower (SHP) b. 17000 Revolutions Per Minute (RPM) c. 2100 Foot Pounds (ft/lbs) of Torque The complete Load Management System shall have a total weight (wet) not to exceed 800 pounds (lbs). The TRS must at a minimum have a rated output of 1.5 millivolt per volt with a maximum excitation of 10 volts using the strain gage system. All temperature measurements should be done using a TYPE E thermocouples. This will be monitored for three parameters, water flow in, water flow out, and bearing temperatures on the LMS. The LMS with all its components must perform, under normal operational test limits, for a minimum of 700 hours before any scheduled maintenance or overhaul requirements. The LMS must be able to be mounted to the front of the engine without the assistance of a pedestal or like apparatus. The existing water supply system should provide 50 psig at 500 gallons per minute flow rate. Both Inlet and outlet supply line size will be 3' National Pipe Tread (NPT). With a maximum water inlet (supply) temperature at 90 degrees F the water outlet temperature should not exceed 180 degrees F (90 degree F Delta). The circulating water system is used at Corpus Christi Army Depot. The installed LMS shall not be able to interrupt the intake airflow for the engine. With the LMS mounted on the CCAD monorail strongback, the LMS maximum allowable angular misalignment of the power absorber driveshaft with respect to the centerline established by the pitch diameter of the engine output shaft spline shall be 0.5 degrees or less. The maximum allowable polar moment of inertia of the power absorber referred to engine shaft speed is 5.041 slug ft sq. The maximum allowable torsional spring constant of the power absorber drive system referred to engine shaft speed is 245.0 ft-lb/radium. The natural frequency of the dynamometer installed during engine test shall be no higher than 50% of the idle rotor speed in all modes of motion which can be excited by residual rotor balances. Vibration of dynamometer shall be no more than 0.94 in/sec average in all steady-state points in a front vertical pickup location. The LMS shall use standard Mil-L-23699 synthetic oil for the oil lubrication system. The lubrication system shall be designed using oil jets for lubricating the bearings. The Government desires commercial Drawings for all LMS components IAW DI-DRPR-81003 and interface drawings IAW DI-DRPR-81000 for Government Use Only. Commercial Off the shelf (COTS) manuals IAW DI-TMSS-80527 for all LMS components is required. The manuals will include at a minimum instructions for operating, trouble shooting, overhaul of the LMS, calibration procedures. Training shall be provided to CCAD Maintenance personnel on disassembly, overhaul completely, calibrate, refurbishment and reassembly of the LMS. Video training shall be required to include detailed calibration techniques, advanced trouble shooting and fail safe procedures, complete dynamometer tear down, overhaul and rebuild parameters for the LMS. After market support for 1 yr. and phone support with a poc and a hotline is required. Sources who have products that meet these requirements and are interested in participating should send a product specification sheet which addresses each of the Government's requirements to U. S. Army Aviation and Missile Command, ATTN: AMSAM-AC-LS-L/M Dickens, Bldg. 5303, Redstone Arsenal, AL 35898 or fax the information to 256-42-6302 not later than 16 Apr 01. Questions regarding this issue may be directed to Mary Dickens, 256-876-2015.

Record

Loren Data Corp. 20010402/49SOL002.HTM (W-088 SN50H7N4)