Aikon
A320 - Clarification - IDG cooling is continuous, the fuel return to tank is inhibited during takeoff and climb, when it does start there has to be room in the outer or inner wing tank. Hence the wing tank fuel is used until the 500 kg. underfull sensor operates, then the CTR pumps run again.
See FCOM 1.28.10 p.6
Last edited by TyroPicard; 4th Feb 2010 at 10:31.