L-1011 Autoflight: Takeoff Mode (22-53)

If the takeoff/go-around switch on either control wheel is pressed while on the ground, the speed command system will shift into the alpha mode for takeoff. The speed command system will then cause the flight director bars to be referenced to a minimum of 1.25Vs or 17.5º maximum pitch attitude, whichever produces the higher airspeed. The FAST/SLOW pointers are referenced the the same mode.

L-1011 Autoflight: Takeoff Mode (22-43)

The TAKEOFF mode provides pitch and roll guidance. Roll guidance is wings-level only, with no heading reference. Pitch guidance commands a pitch attitude that will produce an angle of attack that corresponds to an airspeed of 1.25Vs for the existing flap setting, up to the established takeoff pitch attitude limit. Excess thrust that would otherwise cause this limit to be exceeded is converted into airspeed acceleration.

Remember, takeoff can be selected at any time while on the ground. Verification of mode engagement is made by observing the TAKEOFF message on both AFCS MODES annunciators.