Thanks a lot 11bee, these were taken in Ft. Smith AR. They have been coming through for the last 5-6 years every few months. They are the trainers one young student, and all of the older guys are retired 160th pilots (most from the 80s-90s currently) pretty interesting to talk to. They go to New Mexico for high altitude training, I've never noticed the fuel cells until you pointed it out, makes sense, that's a pretty good cross country, I know they stop at a couple places in each state.
Would you happen to know a website that has a list if the current serial numbers? I'm not real big on that,