Minicraft Model Kits Kids KC-135R US Air Force Model Kit This new KC-135R features new engine tooling representing CFM-56 high efficiency engines that improve speed and improves fuel efficiency. New decals printed by Cartograf features markings for 2 United States Air Force aircraft. Markings included in this kit are: KC-135R (58-0018), 22nd ARW (931st ARG) McConnell AFB, 2013 KC-135R (58-0023), Illinois Air National Guard, ca. 2005