Jetboy,. .. .It's little more complex than such. Suggest a visit to the Airbus website. Any airliner goes through different phases of development after initial launch. The A340 comes in standard as well as several IGW versions. The "Enhanced" version the SQ uses also have higher trhust settings. Have been led to belive that the "Improved" version that SAA recently signed for will have yet more power and thus higher weights.. .Again, try to visit the Airbus website for full details.. . . . <small>[ 21 March 2002, 09:49: Message edited by: Flip Flop Flyer ]</small>