B737-800. Flaps2 while vectoring
Dragging up an old thread
I've been trying to find some information on this, and was happy to see that some other folk have used F2.
I once or twice called for it many moons ago when fuel was becoming an issue, and the big gulf between F1 and F5 speeds suggested that F5 was a bit excessive when keeping a much higher speed, such as 180kt during arrivals into places like London.
On one occasion, I was informed that if it isn't trained, it cannot be used.
On the NG, if you select F2, it bugs a speed of around 180kt. So the machine isnt surprised to see it, Which means Boeing must have something built in to use it. It has a position in the gauge, a detent in the quadrant, and a bug on the tape.
I know of at least one operator that has now determined it to be not available for use. No explanation given or available.
Is there any other detailed info or explanation of this otherwise superfluous flap position?