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First time at the airport for a takeoff should have zero to do with hitting a sign. What probably happened is that then the pilot advanced the thrust the aircraft veered off centerline. It is company procedure to advance the thrust on the GE engines to approx 1/3 takeoff power. In some cases the engines do not spool up evenly and it is difficult to keep on the center line if one engine lags behind the other. If a pilot goes from idle to takeoff power then I’d say it would be near impossible to keep on the centerline with the rudders. One engine will lag behind the other.
If the aircraft had the IAE engines then the advancement to takeoff power is slightly different. There is a no go zone in the rpm spectrum. Because of vibration causing wear. In any event most pilots advance the IAE engines slowly to prevent being pushed to one side of the runway.
I’m Sure the data will be pulled and we will know exactly what happened. But this would be my guess.
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What me speed?
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