U.S. Navy Douglas R4D and U.S. Air Force C-47 aircraft unload at Tempelhof Airport during the Berlin Airlift. The first aircraft is a C-47A-90-DL (s/n 43-15672). U.S. Navy National Museum of Naval Aviation photo No. 2000.043.012; National Museum of the U.S. Air Force photo 050426-F-1234P-008; Autor: US-Airforce; entnommen bei Wikipedia: https://en.wikipedia.org/wiki/Berlin_Blockade#/media/File:C-47s_at_Tempelhof_Airport_Berlin_1948.jpg; Lizenz: Public Domain