Model Variants (Including Prototypes)
E-2 "Hawkeye" - Base Series Designation
W2F-1 - Initial Series Designation; E-2A after 1962.
E-2A - New Series Designation after 1962; initial production models based on the W2F-1.
TE-2A - Crew Trainer Variant; converted from E-2A models; two such converted in this fashion.
YC-2A - Converted E-2A models for C-2 Greyhound development; two converted as such.
E-2B - Based on the E-2A (all conversions of); improved computer systems; inflight refueling capable; larger outer tail fins.
YE-2C - E-2C prototypes based on the E-2A series.
E-2C - Based on the E-2A but similar to the E-2B with improvements; improved electronics and radars; upgraded engines found in "plus" designation series.
E-2C Hawkeye 2000 - Improved and upgraded E-2C models.
E-2D "Advanced Hawkeye" - Improved E-2C (first flight 2007); inflight refueling; new avionics package; redesigned cockpit glass; improved powerplants.
E-2K - The E-2C Hawkeye 2000 series when in the Taiwanese inventory.
E-2T - A variant of the E-2C Hawkeye when in the Taiwanese inventory.