keesje
Your design idea has a fuselage diameter & length and wingspan almost identical to an A320 -- but its empty weight is 35% lower!
Where will your design save the 15 tonnes? Seems particularly difficult since the T-tail and high-wing/low-gear arrangements are heavier.
CFM56's weigh about 2400kg each, TP400's about 1900kg each, so there's a ton of savings per airframe. 14 to go!
Last edited by Machaca; 27th June 2008 at 23:07.
Reason: typo