Talking about C-119s, AC-119 gunships were assigned to Nakhon Phanom RTAFB when I was there, but I didnt get to ride on any. Military personnel can sometimes hop or travel, for free, on military aircraft as passengers. I think I remember doing that once on a C-119 which had landed at Ellsworth AFB, SD, and was headed for Dover AFB, DE.
I got to ride on the flight deck. The clouds and fog were so bad that the crew was considering going to the alternate either Denver or Omaha but the Lt Col aircraft commander was pretty sure he could find Wright Patterson AFB, Dayton, OH, the base where he had planned to land without backtracking. Ellsworth, our base of origin, was also socked in by this time.
Now thinking about it, I dont really know how much of what went on was for my benefit flight crew playing tricks on a relatively young passenger but it sure seemed real at the time.
Anyway, when we got there, the Lt Col asked his copilot to look for a particular light formation on the ground so he could land. He found it and we went down. All I could see was swirling fog.
We touched down and were taxiing when the crew suddenly put on the brakes and stopped. We got out and about 75-100 feet directly in front of us was a parked double-decker C-124 Globemaster (http://www.globalaircraft.org/planes/c-124_globemaster_ii.pl
). Had we continued, we would have run into it.
We got back in the C-119 and the pilot called the tower and asked for transportation. He gave a general location and they came out and found us. We just left the plane where it sat and someone else parked it later. I continued on to Dover with the crew a day or so later. I think I ended up taking a bus from Delaware down to Pennsylvania where my family lived at the time. This was in the early 1960s.