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S.S. White Flexible Shaft's TRAS & Rudder Pedal Adjustment System on Boeing 787
The world’s next generation commercial aircraft, the Boeing 787 incorporates S.S. White flexible rotary shafts to help power the aircraft’s Thrust Reverser Actuation System (TRAS) and flexible rotary shafts to support rudder pedal adjustment.
Boeing 787 incorporates S.S. White flexible rotary shafts to help power the
aircraft’s Thrust Reverser Actuation System (TRAS) and flexible rotary shafts to
support rudder pedal adjustment. The TRAS opens deflectors along the rear
side of the aircraft’s engine nacelles to slow the aircraft down after landing to
insure a safe arrival.
S.S. White provides a set of four flexible rotary shafts per engine that are
activated to synchronize the actuation system that opens both halves of the
thrust reverser panels upon landing. These same flexible shafts 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
S.S. White Technologies is a world leader in the design, engineering,
manufacture and testing of a wide variety of flexible shaft products for the
aerospace, medical, automotive and industrial markets around the globe.
Almost all of the commercial and military aircraft platforms in the air today
(except Russian) and more than one-half of US manufactured cars rely on S.S.
White Technologies flexible shaft products. The company currently has
manufacturing facilities in the United States, the United Kingdom and India.