Well, it's kind of a long and involved story that's been developing for a number of years, but basically it has to do with how they've piled mismatching requirements onto the spec until, if and when it actually works at all, it will be no things to all people. Billions of dollars and jillions* of man-hours expended, and other platforms rushed to end-of-life prematurely, to support an all-out effort at producing one airplane that's so incredibly versatile... it can do a kinda disappointing job at just about anything.

Clap. Clap. Clap. God bless America.

--G.
* yeah, that's right, jillions
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Benjamin D. Hutchins, Co-Founder, Editor-in-Chief, & Forum Mod
Eyrie Productions, Unlimited http://www.eyrie-productions.com/
zgryphon at that email service Google has
Ceterum censeo Carthaginem esse delendam.