A330 flex takeoff problem

[Bera 0]

Hello,I did some flights with A330 and noticed this issue both with 200 and 300 series. Once flex takeoff eg -50 my ac does not accelarate after 80 - 100 knts even at very light loads (EHAM-EGLL). If toga used it seems to have way too much power and shoots off like a rocket (>25 deg pitch angle excess of 5000 ft/min) right after rotation - not very realistic. Funny enough accelation to 80knt's seems to be roughly the same.I am using latest B. Scott improved fde - Once this problem was noticed I did install the flight model again as per intructions.Anyone else having same issue? Am I missing something? Perttu

[Guest vrandar]

If I understand you correctly you are setting the flex to minus 50 which is probably a bit much. -25 to -30 at a low-elevation airport is probably sufficient.The other issue is the climb: you should set your trim to something like -1.8UP. Use the Home and End keys to change the trim and watch the reading in the middle of the F/CTRL page on the lower ECAM. This should help you maintain V2+10 after takeoff (shown by the magenta triangle on the speedtape)Rob Elliott, EGPE InvernessPSS Airbus Support andAirbus Fleet Training Captain, British Airways Virtual airbus@speedbirdonline.co.ukhttp://www.speedbirdonline.co.uk/airbus.htmlhttp://www.bavirtual.co.uk

[Bera 0]

Hi Rob,Thanks for the reply. Indeed with -30 flex she accelerates ok and initial climb around 20 deg. So close enough for me...What is interesting with -50 flex she does not accelarate beyond 100 knts. That is with only difference of 4-5% in N1 value 88->93...Best Rgs Perttu