He started out flying CH-46 Sea Knights, went on to UH-3H Sea King, and then the HH-60H. When we were in Hawaii he flew the C-26 turbo prop. I think that is the same as a Metroliner?
I've been on many helo air refueling missions. Even had the opportunity to attend "Dunker" training at NAS Pensacola many moons ago. Your DH can tell you how much fun that is.