If a plane can already autoland and stay aligned while roll-out by itself, on a CAT-3 ILS-Approach, I asked why there is no auto-takeoff-function on todays autopilots.
Because it should be technically possible and much safer than a hand flown takeoff.
For the technic: When on the runway, the pilot presses an auto-take-off button. The plane stays aligned by following a normal CAT-3 Localizer. Takeoff-Thrust is made with autothrottle. At Vr, the plane rotates by itself, smoothly,and activates VNAV and LNAV and follows the SID. It is also possible to implement a live wind sensor to dynamically update V-Speeds.
For safety: In case of an emergency during take-off, a computer take-off would be more safer. The plane knows the speed and runway length. So in case of an emergency, it knows if it's below V1 and also if the available runway length is sufficient for a safe rejected take-off. A computer always has a lower reaction time than humans and they can response faster. A computer can immediately decide wether to take off or reject based on lots of live data. A (rejected) take-off performed by a computer should be times safer.
So, why has an autotake-off-function not been developed yet? And what arguments would speak against an auto-take-off function?
-- There is not an answer to my question here: On modern commercial airliners, how much of the flight could be fully taken care of by the auto pilot? as stated below. I want to know what reasons, if there are any, speak against auto-take-off.