C-123J, this was a C-123 experimenting with turbojets, if you look at the picture closely you can see the J-44 turbojet pod under the wing, but still the plane lacked in alot of areas. The C-123 had numerous models, the J was one of the last. The plane has an interesting history. It started out as a glider in the 1940's, and the government wanted a powered version of it, so they put the 2 engines on it and the rest is history, from the base model C-123B to the C-123K. They are long decomissioned, but there are lots of surplus ones out there still in use. If anyone has seen the movie "Air America" with Mel Gibson, and Robert Downey Jr, they use several surplus C-123's in that movie.