Originally Posted by
tdracer
The GEnx is basically too big and too powerful for a
767-200/300 re-engine (GEnx-2B is rated ~67k on the 747-8, most powerful engines available for the 767 are ~62k). Which may be why they're looking at a 767-400. Years ago FedEx was interested in a 767-400 package freighter but the -400 was already OOP and it would have cost a lot to start it up again.
I've long been of the opinion that Boeing's best solution for the MMA would be a '767X' - re-engine with a new wing. But it would require a state-of-the-art engine in the 45-50k thrust class and no such engine currently exists. There is a currently a
big gap between the LEAP/Pratt geared fan engines (top out around 35k) and the GEnx and Trent (start at about 65k).
I assume that the GEnx-1B from the 787 is out due to the lack of a bleed air system etc.? Then it becomes a massive undertaking to convert a 76-4 pneumatic system, electrical system etc. into a suitable configuration ?
What a strange pickle Boeing has aggressively thrust itself into - Develop the 787-8 ostensibly as a replacement for the 76-4. It’s so expensive and has such incredible range that it’s not even in the same ballpark as a replacement. But it’s so close to the 76-4 in terms of passenger capacity and size. Then they identify a brilliant opportunity to replace the 767 and 757. WTF ?
One wonders if the cheapest and most profitable approach would be a ‘baffle with marketing BS’ move on Boeings part. Develop the ‘787 Continental’. Less range and more cargo capacity. Sell 4000 of them (the Boeing estimate for potential sales), and wipe your hands. Declare victory, high fives, a round of layoffs and massive bonuses for management. The Boeing way.