>> i believe that was at westover field, during the wintertime. that was prior to the airlift. i was a corporal at that time, two stripes. i got to be a sergeant. then when it was time to re-enlist, we will put you in for staff sergeant if you stay in. i said, that's -- the promise is not good enough. if i had stripes now it would be different. there was a g.i. bill of rights at that time. i decided to go to college instead and get an education. i attended boston university and took up business administration. i felt that if i wanted to go back in as an officer, i had the education, i would do so. i met my wife in my third year of college. i got married. i decided, it's not good to bring your kids around the country and all over the world. let them stay home and have a normal upbringing. i had three boys. they are wonderful. they turned out great. that's just a little side talk. that's what happened. >> ralph, i mention maintenance being the backbone of the operation. >> absolutely. >> i know all the steps that an airplane had to do. can you briefly explain what the maintenance