Originally Posted by
80ktsClamp
The "757ER" designation is just an in-house designation. The previous reasons for this were already well explained. There is no type designation change from Boeing. They are designated as delivered to TWA as "757-2Q8"
I'm flying two of them tommorrow and Tuesday. Weee.
I believe your right, some, but not all of our 757s had a weird designator i.e. 2Q8. however, most of TWA's customer package was -31 or -231.
For example, our backwards wired 727-200s were 727-231 Adv. and I believe some of or 757s were 757-231. Good piece of trivia, Clamp.