There is a thing called equipment change. We use it all the time. At airline sca...

There is a thing called equipment change. We use it all the time. At airline scale a captain (and crew) is worth an airplane. (And, come to think about it, it's a 1:1 relationship, so that follows Noether's Lemma, I think).

Don't overvalue the airship in the equation. (And I've done this job. I know what levers we can pull and how often it comes up.) Show me your data.