Flight Acceleration Window Time

So most of us have used Fuel Catalyst to accelerate our flights when they hit the blinking green points during the flight. I use the timer on my phone to alert me when my flights are getting close to their acceleration points, but I always wondered how long the window remains open. So to satisfy my curiosity I timed the start and stop of the blinking green acceleration window. So how long does it remain open? The answer is 3:35, thats minutes:seconds. Remeber that Rental and Silver planes fly 10% faster, so you we need to cut that time down by 21 1/2 seconds.

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Bastoska