Republic Airport — East Farmingdale, United States

FRG stands for Republic Airport in East Farmingdale, New York, on Long Island, a historically significant site once home to Republic Aviation, the manufacturer behind the P-47 Thunderbolt and other notable military aircraft. Today FRG operates as a busy general-aviation reliever airport for the New York metropolitan area, hosting corporate jets, flight schools, and a well-regarded aviation museum documenting Long Island's aerospace manufacturing legacy. Its proximity to New York City makes it popular for business aviation seeking to avoid the congestion of JFK or LaGuardia. FRG remains an active symbol of Long Island's once-massive role in American aircraft production during the World War II era.