Originally Posted by
WildcatYXU
New winglets. New wing - absolutely not.
At first I had assumed that they were using the same split scimitar winglet as on newer NG's but it is indeed a new design. Interesting article here:
Boeing 737 Winglets
Originally Posted by
jaysona
Yes, new wing is needed as well due to the increased capacity of the fuel tanks, lighter centre wingbox and increased strengthening due to the heavier motors.
New wing or minor tweaks to the wing like the Airbus NEO?