When Pres. Ronald Reagan passed away, I saw this Air Force box truck load the casket in Calif., on AF1.
When it landed at D.C., there was that "same" truck receiving the casket.
Man, that must have been some kind of truck to beat that 747 to the next airport.
Since we are mentioning support equipment, when a previous POTUS arrived at the local civilian airport, two A/F-18s circled overhead at about 21,000 feet until he was off the plane and in the limo.
By the way, the camouflage on those F-18's is very good. They made 4 or 5 circuits before we could spot them in the cloudless but, hazy summer sky.