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Scaled Technology Works Receives PMA for DC-8 Component

  • Wednesday, 27th September 2000
  • Reading time: about 2 minutes

Scaled Technology Works of Montrose, Colorado has received a Parts Manufacturer Authority (PMA) for the first of several DC-8 components being certified by the company. The PMA is for a 20-inch wide by 90-inch long by 5/8-inch thick wing trailing-edge panel that the company has redesigned from aluminum to advanced composite construction. The PMA is an authorization by the Federal Aviation Agency (FAA) that the composite component can be used as a replacement for the original equipment manufacturer’s (OEM) aluminum panel. STW has used its composite design experience and full analysis capabilities to develop low-cost, high-performance alternatives to expensive, outdated, or unavailable aircraft components. Under the trademarked name, FiberSpares(TM), PMA composite components feature high-technology reinforced materials and advanced construction techniques that provide a low-cost alternative to OEM spares. One construction method used for FiberSpares(TM) is a proprietary, tailorable grid-stiffened structure that improves damage tolerance and resists moisture ingression. This technology offers many benefits for the DC-8 trailing edge panel over the aluminum OEM construction, and for a replacement for conventional aramid honeycomb core composite components. STW used FiberCote’s E765 fiberglass/epoxy and graphite/epoxy prepreg materials in the DC-8 panel. Pre-approved design allowables permitted STW to minimize FAA certification time and costs. The DC-8 panel is the first product line within STW’s Composite Aircraft Spare Parts with Enhanced Reliability (CASPER) program. Other PMA parts the company expects to manufacture will range from small panels such as access doors and control surfaces, to large structures such as wing-to-body fairings and complex flap track fairings. “Initially focusing on DC-8 aircraft, we expect to quickly move into other aircraft,” said Paul Oppenheim, Scaled Technology Works’ business development manager. “Considering the age of the aircraft we’re targeting, coupled with the innovations we employ in advanced composite technology, there is a considerable market for this product. FiberSpares(TM) offer operators the opportunity to reduce maintenance costs, thus extending the life of aircraft for both commercial and military applications.” STW designs, produces and delivers fully integrated composite structural components, major assemblies and complete aircraft. The company’s primary market focus encompasses the general aviation, commercial and military aircraft industries. STW is a subsidiary of Precision Castparts Corp. (NYSE: PCP) of Portland, Oregon. For further information on FiberSpares(TM), contact Ric Rasmussen, at 970-252-3020 or email to For further information on STW, visit the company’s web site

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