Air Force flight in Mideast uses call sign ‘Pickle Rick’ in apparent nod to ‘Rick and Morty’ Associated Press 6 hours ago An Air Force call sign was inspired by the Cartoon Network's Adult Swim cartoon Rick and Morty (Image from the Rick and Morty website). DUBAI, United Arab Emirates (AP) — Someone in the U.S. Air Force apparently watches the cartoon “Rick and Morty.” An Air Force KC-10 Extender that flew out of Al-Dhafra Air Base in the United Arab Emirates on Sunday used the call sign “PIKLRICK” on a mission that saw it fly east over the Gulf of Oman, according to flight-tracking data. The KC-10A is an aircraft that refuels warplanes in flight.