Thanks for all the info - I carried out a check flight today with the pumps off and noted the following.
Contents in the main decreased quite happily from 320kgs until 245 kgs
The main tank contents were unuseable below 245kgs
The supply tanks' red 'low' captions (on CDS) came on at around 28kgs
Last edited by Letsby Avenue; 11th March 2004 at 03:38.