KA-6D Intruder (1/72 Scale) Aircraft Model KitDetails: The A 6 Intruder entered service in the mid 60s as ground attack carrier based aircraft to replace the outdated planes as the propeller driven A 1 Skyraider and the A 3 Skywarrior. The Grumman Corporation developed and designed the A 6A, based on U. S. Navy specifications, a twin jet engine all weather medium attack aircraft able to operate from the American aircraft carriers. The Intruder was characterized by a sturdy and robust fuselage and