Originally Posted by
b1lanc
The B-1 example is not entirely irrelevant. I assume ferry without an engine was not in either the B-1 or 747 manual - nor would I expect either operator to just "guess" it would be OK. I assume in either case some advice from the DA was sought on performance impacts etc. to understand the risk being taken.
The appetite for risk might be different - but I suspect the USAF military don't just guess or act recklessly as to the implications of operating with an engine missing - it would have been a reasonably informed choice.
I only mentioned it as ferry with a missing engine is not impossible - subsequently proven with a civil example.