Originally Posted by
mainwheel
If it is a legitimate question, then there is really only one answer.
Winglets were not, and still are not, a option from boeing on this aircraft.
It's the same as asking why the 767 dosent have 4 engines? It wasn't designed to!!!
However, why are they asking the question?
But they are now:
Blended Winglets for the Boeing Business Jet
The joint venture of Aviation Partners and The Boeing Company created a Blended Winglet Performance Enhancement program that has redefined the Boeing Business Jet, 737-700, 737-800 and 737-300.
Launch customer programs are in position for the Boeing 757, 767 and the MD-80. Aviation Partners has the excllusive right to market and sell Blended Winglets to all corporate & VIP owners/operators of Boeing aircraft in service and on the production line.
Up to 6% drag reduction
Built in fuel hedge
Improved takeoff performance
reduced engine maintenance costs
Increased payload-range
Lower airport noise and emmissions
Improved operationalflexibility
dramatically different appearance
Higher airplane residual value