Boeing TC-18E 81-0893 552nd Air Control Wing Tinker AFBThese are 1 72 scale decals for Boeing TC 18E 81 0893, assigned to the 552nd Air Control Wing at Tinker Air Force Base, Oklahoma, wearing overall Boeing Gray (FS 16015) with natural metal engine nacelles, bold "U. S. AIR FORCE" fuselage titling, "USAF" tail lettering, and tail code OK 26893. The TC 18E was a military conversion of the Boeing 707 320C commercial airliner, modified to serve as a dedicated aircrew trainer for the E 3 Sentry Airborne