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Show wheels, brakes HILL TOP TIMIS 26 Friday, April 24, 19t7 Moll Faulty broke sll7es valve restricts fleet of Stratofortresses B-5- S2 strut tends to be pulled apart," Mr. J. Shannon By Erni Dyreng said. "This problem was made worse by the sudden pressure surges from the valve which we found to be clogged with small particles." As engineers measured the brake pressure, they found the valve built to Ogden ALC Public Affairs Office A set screw, smaller than a human fingernail, is enabling America's fleet to meet mission requirements by lifting an flying restriction on the bomber. More than two years ago, pressure surges from a brake metering valve broke a right landing gear strut while the plane taxied at Griffiss AFB, N.Y. Fortunately, at 10 miles per hour, only the strut suffered damage and the rest of the aircraft, with its accompanying cruise missiles, B-5- 2 18-mon- th B-52- sustain 660 to 720 pounds per square inch, according to Mr. Dyreng. With a fully loaded Stratofortress, weighing 495,000 pounds, short surges exerted as much as 1,200 psi on the struts, thus causing the problem, he said. During a period of months, Mr. Dyreng and his crew isolated the problem in the valve slide. They found the aluminum plug in the slide allowed particles to collect which led to the doubling of pressure on the strut. Engineers replaced the plug with a set screw which has a wire running through the middle, according to Mr. 's remained intact. Two more similar accidents followed and by late 1985 Russ Dyreng, an aerospace engineer at the Directorate of Materiel Management, began an in- vestigation. "Looking back, it was one of the most challenging problems we've taken on," said Mr. Dyreng. "The urgency was compounded by the fact that General O'Loughlin witnessed one of the struts breaking." Gen. Earl T. O'Loughlin commands the Air Force Logistics Command. "He wanted the situation solved as soon as possible. "On all three aircraft, the right strut broke, not the left. We found that when the right gear retracts, the lyyj 8 ' -- w la tr 0 'a (7 I r U.S. Air Force Photos) Broken Bomber ; 2 View above shows resting at Griffiss AFB, N. Y. The left wheel and strut are turned inward. At left, closeup B-5- Dyreng. The wire, he said, more accurately adjusts the amount of fluid j flowing through the slide, thus providing adequate pressure and cleans the slide of particles. Successful testing of the new device meant a refitting of the Air Force's entire fleet, Mr. Dyreng said. Memof Hill's engineering shop, in bers Bldg. 502, worked day and night and some weekends rebuilding the valves, he said. B-5- . -- graphically displays result of too much pressure on the left strut. 2 K(SND..BRiy)KICInl 1 Now On Saturday & Sunday . r m if v SATURDAY 9:30 A.M.-12:3- 0 P.M. SUNDAY 9:30 A.M. -- 1:30 P.M. , ADULTS S6.95 KIDS 40 0 Per Year of Age Up . (2 and Under I to 12 FREE) SUMMERIZE YOUR COOLER We will drive to your home clean, oil & get your cooler READY FOR SUMMER $34.95 PLUS PARTS COOLER PARTS SALE 20 Do it yourselfers welcome MEXICAN BUFFET ALL YOU CAN EAT Belgian Waffles, SALE ENDS APRIL cinnamon rolls, made-to-ord- er omelets with a wide selection of fillings, peach and apple cobbler, fresh-bake- 26th, 1987 d ham, sausage, bacon, fried potatoes, scrambled eggs, enchiladas, fresh fruit and salad bar, green chili, chili con queso, corn bread, taquitos, Mexican chicken, Spanish rice, beans, rolls, ice cream sundae bar, vanilla and chocolate pudding, assortment of fresh-bake- d goods, fruit toppings and syrups, margaritas, daiquiris, pina coladas, children's margaritas, orange "all drinks juice non-alcoholi- OFF c." Low Profile I ii ii No Leak 1 Piece Button No Rust Defuser I 2 I Speed Motor Service After the Sale UUULJLj All Work GUARANTEED Year Parts & Labor SAVE ON ALL SIZES 1 CHAfTCQN COOLERS 1075 North Hillfiold Rd. Layton Hills Matt) Loytdii REGTACIRAffTE H 520 S; State Clearfield O 773-483- 6 ;E |