Beechcraft Baron (58) (N60374)

Definitely not a Beech Baron, This is an older Lear, I'm sure you could find out what model they operate online somewhere

the Baron is a twin piston

That's an USAF C-21A, s/n 86-0374, of the Colorado Air National Guard, probably assigned to Peterson AFB. This is essentially a Learjet 35A, but there are differences.

Hint- key in the full six digit AF s/n "860374" rather than the five digit "60374" for the registration number.