The Grumman A-6 Intruder was an American, twin jet-engine, mid-wing all-weather attack aircraft built by Grumman Aerospace. In service with the U.S. Navy and .\rbr\rbrAn overview of the World Military videos on the navy, air force, army. From aircraft carriers to fighter planes, passing through tanks, infantry and special forces, .\rbr\rbrThe Grumman A-6 Intruder was an American, twin jet-engine, mid-wing all-weather attack aircraft built by Grumman Aerospace. In service with the U.S. Navy and .\rbr\rbrThe Grumman A-6 Intruder is a twin jet-engine, mid-wing attack aircraft built by Grumman Aerospace. In service between 1963 and 1997, the Intruder was .