Keywords: Grumman Martlet IV at NAS Anacostia in April 1942.jpg A British Royal Navy Grumman Martlet IV Grumman F4F-4B at Naval Air Station Anacostia Washington D C USA on 21 April 1942 after application of British markings This aircraft is FN100 the first Martlet IV In January 1944 the name Martlet was changed to the U S Navy's name Wildcat Official U S Navy photo http //www history navy mil/our-collections/photography/numerical-list-of-images/nhhc-series/nh-series/NH-89000/NH-89675 html NH-89675 from the U S Navy http //www history navy mil Naval History and Heritage Command 1942-04-21 U S Navy PD-USGov-Military-Navy Grumman Martlet Naval Support Facility Anacostia |