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Show May 3, 1974 HILL TOP TIMES Pog t Symposium for composite designers sloped ness. It was noted by scientists at AFML that tremendous weight savings in future aircraft structure could also be realized by utilizing boron or graphite composites. George Peterson, chief of ANDREWS AFB, Md. The Air Force (AFNS) - Materials Laboratory (AF-Mand Flight Dynamics Laboratory, both located at L) AFB, Ohio, will sponsor a symposium for Wright-Patterso- n the AFML Manufacturing Technology Division, and a longtime advocate of composites, is certain the Air Force is heading' in the right direction by using boron and, designers May composite i 4 in Dayton, Ohio. The symposium is designed to increase industry interest in composites, which are things made up of various, parts or elements, such as a . compound. The Air Force needs advanced composites to fly its 22-2- especially, graphite posites. "By using . . comcom- reduced labor costs in making composites compared to of the Air metal structures," Peterson A SPINOFF d composites points out.'c Another long-terinclude commercial sporting economic advantage is that manufacturers equipment no is corrosion problem there d using Air with That, and the for composites. better percomposites formance with such products very good fatigue resistance as golf club shafts, tennis combine to make composites the "material of the future," racket handles and skis. Since the early 1950s, the according to Peterson. AFML has been developing ANOTHER result of AFML and testing materials to find is the more accurate research t, composites that could be used prediction of structural life for for aircraft airframes and composite components of aeropropulsion applications. boron or graphite, and the use The scientists at AFML of inexpensive adhesive by pioneered were looking for a material bonding with a good balance of high scientists at AFML. According to Mr. Peterson, strength and high stiffness. They thought they might have found the perfect material in something called fiberglass. It was considered ideal at the time because of its high strength and low weight. and cheaper. Force-develope- low-cos- aircraft; F-l- ll boron-epox- e composite cluding a a wing to be tested on an third generation composite horizontal stabilizer for the YF-1- 6 (an Air Force prototype aircraft); a composite and a speedbrake for the for the outer wing composite full-siz- y F-1- 5; horizontal stabilizers; and a program to fabricate and whirl test a set of three boron-epox- main y rotor blades for the CH-4- 7 medium transport helicopter. A-- 7 standing fatigue, properties, the composite rotor blade is of an advanced geometry, im high-performan- ce augmentation program-COMM- A. stage, COMMA calls for design, manufacture and evaluation of an advanced composite wing on a remotely piloted test vehicle. The 5 systems program office at Wright-Patterso- n AFB, which directs the development of the new air superiority fighter, cites the factor savings weight Advanced composites are now in use on a limited production basis. The Air Force wants to increase industry interest in composites with the hope of advancing knowledge and driving down costs. F-1- First Southern Baptist Church aircraft. IN A SIMILAR effort, Air CARPET Clearfield, Utah Sunday School Wednesday Services Worship Service 10:55 a.m. & 9:45 a.m. 6:30 p.m. 564 South 800 o o o PHONE E. Lavoid Robertson Pastor Church Residence CARPETS FRESH-CLE- AN extend to YOU a cordial invitation to come worship with us Sunday & We Need a Church Home Away from Home? Force engineers are looking at BILL LILES Owner Manager F-1- Now in its advanced design Latest Deep Cleaning MR Steam Equip Prompt Courteous Service Free Estimates ENJOY The 5 systems program office at Wright-Patterso- n AFB, which directs the development of the new air superiority fighter, cites the weight savings factor as one of the major reasons for using the boron composite material for the vertical and the horizontal stabilizers. maneuver composite F-1- 5; IN ADDITION to its out- V composites for possible use on future aircraft. A typical example is the surface. This year, the Air Force is making additional efforts in the application of boron and graphite composites, in- C-- Force-develope- m possible to fabricate in metal, allowing for significant improvement in both speed and payload. In addition, composites have gone to the moon-- in a drill used by the astronauts to obtain samples from the moon F-l- F-1- F-- 5 posites, the performance and cost picture could be greatly improved. A big advantage is aircraft faster, farther, safer the reliability and service performance of composites on such air Force aircraft as the 5 and the ll have been good, as evidenced by what he calls, "the good maintenance track record." Some examples of programs in which the Air Force utilized boron and graphite composite structures are: boron wing leading edge slats for the 5 Galaxy aircraft; a graphite main landing gear door for the 825-027- 7 825-551- 2 825-108- 7 HOWEVER, in testing the new composite material, it was found to be lacking in certain primarily capabilities, con- stiffness, sidered important for safe airframes. In commercial applications, fiberglass was an important discovery and was used in such application on draperies, home insulation and aircraft application. 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