Sorry, I have to ask. Why does it not matter what the flap setting is at rotate speed on a touch and go?! Is it not the same as a standard take-off, i.e. V speeds, climb performance etc. vary depending upon the exact flap setting?
- never a problem, N49 - always welcome. (737) Approach speed at Flap 30 or 40 is pretty much the same as the required speed for climb away after take-off at F15. By the time the a/c is actually climbing away the flap have reached F15. Up to that point it
may be more, but this is not a problem for handling since the speeds used will be safe (ie higher than for the greater Flap setting. Actual take-off and climb performance on this sequence of T&G's is not a problem since the weather will be good and there will be no problem obstacles in the flight path. For 'normal' ops you are absolutely right - "climb performance etc. vary depending upon the exact flap setting?"
One other question, what happens with the FMC? Can it be programmed for a touch and go so it transitions to a new departure while still on the runway?
- no, never used since the pattern is flown visually ie no 'departure' as you post. Apart from using the FMC to determine approach speeds it will not be used.
NB I stand to be corrected when the first 'Child of the Magenta Line' reaches Base Training Cpt status and cannot, of course, fly a visual circuit unless it is programmed in the .............................................aaah! Stop me! Nurse!
