Ever been to Oscoda? (what used to be the Wordsworth bomber base) where Kalitta does his thing? (I had occasion to fly to Oscoda a couple times a month for several years)
The fact that he does what he does, with what he has, is amazing.
(stay off the south taxiway where they are are scrapping the heavy stuff that is done flying. I tried it once, and it cost me a couple of tires. Just go all the way to the East on the 15k or so B-52 runway and that’s where the fbo and the volunteer museum is)
I have two good friends who are former 747 jocks for him who can’t say enough good stuff.