Originally Posted by
sailingfun
There are 17 but quite a few are in domestic rotations. A single aisle aircraft is not really compatible with the direction Delta is going internationally and the product they want to offer.
I don't think they have a choice, the 797 is vaporware now that Rolls backed out. The Ultrafan is the only engine that is usable for that size of airplane. Pratt could do it, but they need to remove the thrust reversers from the GTF, add 10K lbs of power, and a new type of ultra high bypass resin fan with variable pitch to replace the reversers.
My guess is Delta's orders through 2030 are:
100 A225
50-100 addition A321neo/A321XLR
30 A350neo with Ultrafan.