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Ode to "let's talk about" ll
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For anyone interested, some jobs just opened up at Arianespace.
Human error blamed for Vega launch failure WASHINGTON — Arianespace executives said Nov. 17 that the failure of a Vega launch the previous day was caused when the rocket’s upper stage tumbled out of control due to incorrectly installed cables in a control system. In a call with reporters, Roland Lagier, chief technical officer of Arianespace, said the first three stages of the Vega rocket performed normally after liftoff from Kourou, French Guiana, at 8:52 p.m. Eastern Nov. 16. The Avum upper stage then separated and ignited its engine. However, “straightaway after ignition” of the upper stage, he said, the vehicle started to tumble out of control. “This loss of control was permanent, inducing significant tumbling behavior, and then the trajectory started to deviate rapidly from the nominal one, leading to the loss of the mission.” Analysis of the telemetry from the mission, along with data from the production of the vehicle, led them to conclude that cables to two thrust vector control actuators were inverted. Commands intended to go to one actuator went instead to the other, triggering the loss of control... |
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