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  • Nicholas Goodmana, Abdel Bayoumia, Vytautas Blechertasa, Ronak Shaha, Yong-June Shinb
  • 2009
The AH-64 helicopter tail rotor gearbox is a grease lubricated right-angle transmission which frequently leaks through both its input and output seals. An experiment was designed to create a worst-case scenario for a leaking output seal on three different high-life gearboxes, which were to be run for 500 hours in a seeded fault condition. The test objective(More)
A new enzyme catalyzing the deamidation of seed storage proteins was found in germinating wheat grains and was partially purified. It also acts on egg lysozyme, horse hemoglobin and reduced RNAse, glutamine and Gly-L-Gln-L-Tyr. No activity was observed when using ovalbumin, serum albumin, RNAse, insulin, asparagine and an asparagine-containing peptide. Only(More)
  • Nicholas Goodmana, Abdel Bayoumia, Vytautas Blechertasa, Ronak Shaha, Yong-June Shinb
  • 2009
Several experiments on AH-64 tail rotor drive train components have been performed, and key findings relating to the gearboxes and grease are discussed. In the first case study, an intermediate gearbox experienced three successive thermal events beyond the specified operational limits, all of which were characterized by rapid and unexplained changes in(More)
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