Right, I understand re. the FMC / visual flying. Point taken.
But am still a bit confused on the V speeds front. BOAC, you say:
Approach speed at Flap 30 or 40 is pretty much the same as the required speed for climb away after take-off at F15.
Does this mean there is not a specific Vr for a touch and go?
It seems from what has been said above that it is acceptable and safe to rotate the aircraft while the flaps are in transit. But I have read here before that changing the flaps while on the take-off roll (e.g. if you realise they are not set correctly) is absolutely verboten in normal/revenue operations. So, do I understand correctly that a different set of rules apply for touch and go training flights?
Another thing (!): what happens about braking? Presumably you do not arm the autobrakes on the approach and when you land you simply let the aircraft maintain its speed? If, however, the training captain decides that a stop is (for whatever reason) required, would you have to brake manually?