The stretched acf have higher Vspeeds and Vref for the same weight to avoid tailstrike.
In addition, a longer fuselage will increase LIFT, so a stretched acf will have a lower
AoA on landing for the same weight.
The 773ER has added a raked winglet compared to the 773, so it should help
a bit on the speeds
Cheers,
M
PS: On the B789, they will stretch the wing as well, so the above will probably
not be true there
Last edited by XPMorten; 2nd September 2006 at 13:45.