Keywords: US Marine Corps O-1C with running engine.jpg A U S Marine Corps Cessna O-1C Bird Dog BuNo 140100 outside a hanger at an unknown location with the engine running http //collections naval aviation museum/emuwebdoncoms/pages/doncoms/AdvQuery php U S Navy National Museum of Naval Aviation photo No http //collections naval aviation museum/emuwebdoncoms/pages/doncoms/Display php irn 48734 QueryPage 2Femuwebdoncoms 2Fpages 2Fdoncoms 2FAdvQuery php 2011 003 200 004 s 1960 U S Navy PD-USGov-Military-Navy Cessna L-19 Bird Dog Aircraft of the United States Marine Corps |