Pat From Belgium, joined Aug 2000, 110 posts, RR: 1 Posted (12 years 6 months 2 weeks 5 days 3 hours ago) and read 11101 times:
Yet another topic guys,
Does Airbus have a weight and balance system incorporated in the computer(s) on board ? I mean when the pilot receives the loadsheet, does the computer re-calculate the aircraft weight and balance by any system incorporated ?
In short, does the aircraft computer crosscheck the datas entered manually by the pilots (figures coming from the loadsheet) with its own calculation ?
Can the aircraft weight its own body ???
Jsuen From United States of America, joined Aug 2001, 211 posts, RR: 0
Reply 1, posted (12 years 6 months 2 weeks 4 days 22 hours ago) and read 11064 times:
The system is called a Weight and Balance System (WBS). It was introduced as an option on the A310 and has been certified on the A300-600, A320, 330 and 342 and 343. It involves strain sensors on each of the landing gears. From what I understand, the additional maintanence offsets fuel efficiency gains. Additionally, safety is not as much of an issue because as long as the trim is set to the takeoff range, the plane will always be controllable on takeoff (although the recent NW 320 overrun shows pilot effects).
Airbus also sells a computer program for CG and Weight calculation on crew laptops.
Leezyjet From United Kingdom, joined Oct 2001, 4045 posts, RR: 52
Reply 2, posted (12 years 6 months 2 weeks 4 days 1 hour ago) and read 11015 times:
Yes it can, but as Jsuen said it's an option.
Basically the f/deck will enter some figures off the loadsheet into the FMC and crosscheck it with what the a/c thinks it should weigh, there is a margin for discrepancies of about 10% or so that is acceptable for dispatch.
"She Rolls, 45 knots, 90, 135, nose comes up to 20 degrees, she's airborne - She flies, Concorde Flies"