Cornish Jack:
[QUOTE Particularly in an aviation forum, I would not expect to find contributors advocating leaving a fully operating , if slightly costly, aircraft in order to experiment with a new, untried model which relies on untested component manufacturers and relying for major input (engines?) on the vagaries of a producer who has demonstrated a cavalier attitude to best practice!][/QUOTE]
At first glance I thought you were referring to that European collaborative abomination that is the A400M but then I realized it was just a metaphor!