Originally Posted by LDG NO BLUE
Hello,
In Airbus MTOM performance charts, along with the minimum acceleration altitude there is a so called "Maximum Acceleration Altitude".
Can anybody explain how it is calculated and the practical use of it in the case of OEI procedures?
LNB
Time limit at Takeoff Thrust. If you climb too far (which takes more time) and make allowance for the time at T/O thrust to Vef + Time to accelerate from 2nd Segment speed to Final Takeoff Configuration and speed, the time must not exceed the nominal 5 or 10 minute limit. Usually calculated for Gross (not Net performance).
BOAC, sorry, I missed your point for those circumstances where visual contact during the acceleration is necessary. Mine was a purely IMC situation, maintain V2 (plus permitted additives) at Takeoff thrust, until the turning manoeuvre/s are completed.
Regards,
Old Smokey