mat66 wrote:WIederling wrote:
Over the years OEW impact from MTOW expansion seems to have been minimal.
The step to NEO engines had higher impact.
Doesn’t this make the original A330 from the nineties too heavy / over built / compromised because of the A340?
Just a thought...
Overbuilt isn't really the correct designation.
The Quad's outboard engines provide load alleviation
and the larger Twin's engines on the inner pylons introduce much higher loads near the fuselage.
Overall this turns into similar loads for the center wing box and wings.
Elsewhere the higher MTOW of the Quad is taken up by the Center MLG leg.