rotary shafts to drive the Thrust Reverser Actuation System (TRAS) that opens
deflectors along the rear side of the aircraft’s high-performance engine nacelles
to slow the aircraft down after landing to insure a safe arrival.
S.S. White will provide a set of four flexible rotary shafts per engine that are
rotated at high speed to drive the actuation system that opens both halves of the
thrust reverser panels upon landing. These same flexible shafts will also help
lock the TRAS system to prevent it from inadvertently engaging during flight.
In addition, all aerospace flexible shaft products are designed to one of the
industry’s highest performance criteria by utilizing a unique computer modeling
program developed by S.S. White called PERFLEXION. This program allows the
design engineers to fully model the behavioral characteristics of the wire bundles
within the shaft core and arrive at an optimum product that provides maximum
bending flexibility and torsional strength while allowing minimal torsional
deflection with up to a 30 percent improvement above accepted industry
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