Hi Vilas. We only have IAE engines and PW for the NEOs.
And when I compare the IAE 320 sharklets VS non sharklets the speed are exactly the same.
But the Neos, Vapp flaps 3 is faster which with your explanation about the tail strike clearance makes complete sense to me, But why the VAPP config full of the NEOs is lower than the 320 classic with Sharklets?
