Military Air Transport Service
"Ex Freight Ape"
My main "gym" - I worked out many hours on this type of aircraft
C-121 Constellation, the "Connie"
"The most beautiful of all aircraft"
We loaded and unloaded a lot of mail on them.
"The Flying Coffin"
We couldn't "hitch a ride" on them because so many crashed but you could load a 40 foot trailer on it.
Based on the Boeing 377 Stratocruiser
Used mostly by Air Guard units who didn't carry much cargo or were re-fuelers.