The first three production JetStar executive transports, along with the second JetStar prototype (white tail, registered N329K) sit on the Lockheed-Georgia Company flightline in Marietta, Georgia, in 1960. Officially designated JetStar 6, a total of eighty aircraft were built, but many were later upgraded as JetStar 8s or JetStar 731s. After the test program was completed, the JetStar at the bottom (N9201R) was delivered to the Federal Aviation Administration while the aircraft next to it went to NASA. In the background at the left is the C-130B Hercules modified as a boundary layer air control test aircraft (US Air Force serial number 58-0712) while at right is the second US Marine Corps KC-130F tanker (US Navy Bureau Number 147573) built. (Lockheed Martin/Code One Magazine)