Sinlock From United States of America, joined Dec 2000, 1563 posts, RR: 3 Reply 1, posted (10 years 4 months 2 days 9 hours ago) and read 1154 times:
There was a plan to offer the 767-300ER/LR with the -400's wing. The Raked Winglets/Tip were to be an option. The Raked "winglets" would most likely never have been seen on the -300LR because this would limit the amount of wing loading (Weight the wing can carry)
This was back when the 767-400ERX aka -400LR was still being offered (Ethiopian Airlines had orders for 4) When the -400ERX was cancled any chance of there being an -300LR ended. The next week the 747-500/600 was droped.
The -300LRs MTOW would actualy have been more than the -400ERs MTOW. [This is also true with the 777-200LR vs 777-300ER]