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HERCULES ANNOUNCES COMPLETION OF STATIC TEST FIRING OF ITS SOLID ROCKET MOTOR UPGRADE

    EDWARDS AIR FORCE BASE, Calif., June 2 /PRNewswire/ -- Hercules Incorporated (NYSE: HPC) today announced the completion of the fourth successful static test firing of its solid rocket motor upgrade (SRMU) for the U.S. Air Force Titan IV space launch vehicle.
    The test, conducted at approximately 8:03 a.m. (PDT), verified the operability of the motor at high ambient temperatures (90 degrees Fahrenheit).
    The test motor's 700,000 pounds of solid propellant delivered 1.7 million pounds of thrust with a burn time of approximately 140 seconds.  These values are within specification range.
    "From our analysis of the initial test data, it appears that the performance of our motor continues to be outstanding," stated Richard Schwartz, Hercules Aerospace Company president.
    "We will conduct our usual hardware inspections and analyses of all test data in the coming weeks.  Until they are completed, in approximately 30 days, we will not know the total results, but everything looks very positive at this time.  With this test, the SRMU has met the full range of temperature threshold requirements.  The last three qualification tests, which followed the successful prequalification test last June, show that the SRMU is on track to support the large-payload requirements for the Department of Defense. One additional test, which is scheduled for late summer, will complete the qualification phase of this program.  In the 11 months since the successful PQM-1 Prime static test, we have made extraordinary progress in moving this program closer to the production phase.
    "The consistency of results we have achieved on these Titan IV SRMU static tests demonstrates the excellent reliability and repeatability of our production processes and facilities.  Hercules' Bacchus West facility in Utah is one of the most modern solid rocket motor manufacturing plants in the world; and the successes on the Titan IV SRMU are in keeping with our performance on our other programs, such as Trident II (D-5) and the Delta II Graphite Epoxy Motor.
    "The success of the past four test firings is directly attributable to the excellent team effort of Martin Marietta, the Air Force, the Aerospace Corporation, TRW, and Hercules.  Teamwork and dedication have allowed this program to meet some significant challenges," said Schwartz.
    In confirming the test, Martin Marietta Astronautics Group, Denver, the prime contractor for the Titan vehicle, re-emphasized the importance of the SRMU to the Air Force's Titan IV modernization initiatives.
    Hercules is a $3-billion diversified, worldwide producer of chemicals, solid fuel systems, and related products.  The Titan IV SRMU is produced at the company's Utah facility, which is one of the leading U.S. manufacturers of strategic and space rocket motors as well as high-technology composite structures and graphite fibers.
    /delval/
    -0-                        6/2/93
    /CONTACT:  Donald R. Kirtley of Hercules, 302-594-6918/
    (HPC) CO:  Hercules Incorporated ST:  Delaware, Utah, Colorado IN:  ARO SU: MJ-LJ -- PH017 -- 4484 06/02/93 13:00 EDT
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Publication:PR Newswire
Date:Jun 2, 1993
Words:477
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