The A-5 Vigilante was originally developed as a supersonic nuclear bomber, but submarines had taken on the mission when the A-5 entered service in 1964. Fortunately, the Vigilante’s excellent performance lent itself to the reconnaissance role. A special ‘canoe’ fitted to the belly housed not only cameras, but infrared sensors, electronic surveillance devices, side-looking radar, and defensive electronic jammers. Vigilante’s saw extensive service in the Vietnam War, flying hazarduous pre- and post-bombing raid reconnaissance and surveillance flights.