National Technical Systems Inc.

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National Technical Systems Develops Computer Model for High Intensity Shock Testing

CALABASAS, Calif., Oct. 28, 2013 /PRNewswire/ -- National Technical Systems, Inc. (NASDAQ: NTSC) (NTS), a leading provider of testing and engineering services, today announced it has developed a new, accurate, physics-based computer modeling approach that enables the custom design of shock test apparatus and setup needed to perform high intensity shock tests required on flight hardware for rocket launch vehicles. The modeling approach, developed by the NTS Ordnance Sciences Division based in Dana Point, CA, is the first of its kind created specifically for aerospace and defense customers in the Space Mission and Space Launch System (SLS) industry.

All flight hardware used in rocket engines and space craft must be tested to insure it can withstand pyrotechnic shocks that occur during launch, stage separations, and throughout the spacecraft mission profile and still function during flight. Historically, the method used to develop apparatus to perform these shock tests has been based on empirical experience gained only from prior testing that may not reflect the precise shock requirements imposed on the new flight hardware.

If the design of the ordnance induced pyrotechnic shock test does not accurately reflect the requirement, the results of the subsequent testing performed is difficult to assess, noted Jon Conner, NTS Director, Engineering Services, whose group created the new computer modeling approach. The actual tests, which involve inducing pyrotechnic shock by actually detonating explosives against the test apparatus to which the flight hardware is mounted, are expensive and time consuming so it's imperative that the test designs be accurate before they are conducted, Conner added.

"This is a dramatic paradigm shift for the industry," Conner said. "For years, this kind of testing was more an art than a science. Typically you would grossly over-test the hardware to insure the minimum shock level was achieved across the entire frequency spectrum, which can work if the hardware tests out positively. But if it fails, you don't know if it failed because the hardware needs to be re-developed to insure adequate margin, or if the failure was due to the gross over-test across much of the frequency spectrum. Our modeling approach brings more science to the pyrotechnic shock test design process, which leads to a better testing and more accurate interpretation of the results."

The model created by the NTS team is custom-designed to assure flight hardware developers that the tests will accurately meet their product shock test requirements and provide valid results that will qualify the hardware for space flight, Conner added.

"We actually model the test environment in excruciating detail," Conner said. "The result is a model that accurately replicates the physics of an ordnance induced pyrotechnic shock test."

NTS also performs the high intensity shock testing at its Santa Clarita facility using a pneumatic, cantilever beam shock machine based on a design created by Sandia National Laboratory.    

About NTS Dana Point

The technical personnel at NTS Dana Point have extensive experience in all aspects of computer-aided engineering (CAE) analysis, product lifecycle requirements, failure analysis and the development of custom test apparatus. The facility runs start-to-finish projects including engineering design analysis of a new product; complex engineering thermal and/or structural analysis; customized test apparatus design; development for qualification for complete system to customer-specified requirements.

About National Technical Systems (NTS)

National Technical Systems, Inc. is a leading provider of engineering services to the aerospace, defense, telecommunications, automotive and high technology markets. Through a world-wide network of resources, NTS provides full product life-cycle support, offering world class design engineering, compliance, testing, certification, quality registration and program management. For additional information about NTS, visit the Company's website at www.nts.com or call 800-270-2516.

Forward-Looking Statements
The statements in this press release that relate to future plans, events or performance, are forward-looking statements that involve risks and uncertainties, including risks associated with uncertainties pertaining to customer orders, demand for services and products, development of markets for the companies' services and products and other risks identified in the companies' SEC filings. Actual results, events and performance may differ materially. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. The companies undertake no obligation to release publicly the result of any revisions to these forward-looking statements that may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding National Technical Systems' business which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Company's Annual Report or Form 10-K for the most recently ended fiscal year.

www.nts.com

Contact: Allen & Caron Inc

National Technical Systems

Jill Bertotti (investors)

Aaron Cohen (corporate)

jill@allencaron.com 

aaron.cohen@nts.com

Len Hall (media)

(818) 591-0776

len@allencaron.com

Dwight Moore (technical)

(949) 474-4300

dwight.moore@nts.com


(978) 263-2933 Ext. 273

SOURCE National Technical Systems, Inc.

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