Grumman S-2 Tracker

The Tracker is a twin 1,136.4kW Wright R-1820-82WA-powered carrier-based antisubmarine search and attack aircraft, produced originally for the US Navy but currently also in service with the air forces and navies of several countries.

The prototype flew for the first time on 4 December 1952 and more than 1,000 S-2s were delivered by Grumman. The initial production version was designated S-2A (CP-121, formerly CS2F-1 for the Canadian version). Next came the S-2B with new anti-submarine detection equipment; the TS-2B trainer; S-2G with enlarged bomb bays to house two homing torpedoes (most converted to US-2C or RS-2C); S-2D with improved anti-submarine equipment, wider cockpit and longer range; S-2E with improved anti-submarine equipment; S-2F with uprated submarine detection equipment; S-2G, early version uprated with a Martin Marietta kit; US-2A/C, S-2A/C converted for target towing; US-2B utility/transport conversion of the S-2B; RS-2C, S-2C converted for photo-reconnaissance/ survey work; AS-2D, S-2D modified for night attack; and E-1B Tracer, AEW version with a radome on its back.