Re: Rolls royce got
Trent is a development of the RB211. No RB211, no Trent. Even RR themselves refer to the "RB211 Trent family".
Yes it was development of the RB211 that caused the issue, and nearly brought down Lockheed as well. The crisis came just after PM Edward Heath had made a speech the list of which was "no more government bail-out for lame ducks"