Flap gates
What are the flap gates at 1 unit and 15 units for? I read that the one at 15 is for G/A. Is the one at 1 unit also for G/A?
Also, how does the flight crew determine the takeoff flap setting? In other words, what are all of the considerations that dictate flap setting?
Sorry to be so ignorant! I don't fly the airplane, just maintain it.
Thanks for your help!