As both 747 and myself have stated, there may be operational situations where there is a second crew onboard. These can include cancelled flights, mechanicals, sick crew, Sept. 11th, etc. Therefore I suggest that you reread where 747 states quite clearly that there are no "planned" operations with a double crew. Asking whether Delta has ever ever ever had a double crew is disingenuous, especially in light of your earlier posts and suggests once again that you are only trying to cause trouble.

Why don't you just finally admit that you were/are plain wrong, stop playing with newly created semantics, and move on.

BTW, it doesn't matter which routes you have flown. With the exception of about 4 current long haul Delta routes, I have flown ALL of them and speak from real experience as do many others on this board, your comments indicate that you have not.