The first aircraft to perform this mission was the Grumman E-1 Tracer (a variant of the S-2 Tracker anti-submarine ... The current model operating in the Fleet, the E-2C, is equipped with radar ...
Thus, the Grumman Aircraft Engineering Corporation laid out the design for an aircraft internally referred to as the Model ... C-2 Greyhound and the Bell-Boeing V-22 Osprey, and the E-1 Tracer ...