Grumman E-2 Hawkeye

Specifications

1st Flight 1960

Crew: 5: pilot, copilot, radar officer (RO), combat information centre officer (CICO), aircraft control officer (ACO)

Length: 57 ft 8+3⁄4 in (17.596 m)

Wingspan: 80 ft 7 in (24.56 m)

Height: 18 ft 3+3⁄4 in (5.582 m) : Radome could retract by 2 feet to fit into the 17′ 6″ clear height hangar of Essex and Midway class carriers.

Retraction function no longer used.

Wing area: 700 sq ft (65 m2)

Aspect ratio: 9.15

Airfoil: root: NACA 63A216; tip: NACA 63A414

Empty weight: 40,200 lb (18,234 kg)

Gross weight: 43,068 lb (19,535 kg)

Max takeoff weight: 57,500 lb (26,082 kg)

Powerplant: 2 × Allison/Rolls-Royce T56-A-427 (E-2C), T56-A-427A (E-2D) turboprop, 5,100 shp (3,800 kW) each

Performance

Maximum speed: 350 kn (400 mph, 650 km/h)

Cruise speed: 256 kn (295 mph, 474 km/h)

Ferry range: 1,462 nmi (1,682 mi, 2,708 km)

Endurance: 6 hours (8 hours land-based)

Service ceiling: 34,700 ft (10,600 m)

Wing loading: 72.7 lb/sq ft (355 kg/m2)

Power/mass: 0.19 hp/lb (0.31 kW/kg)

Avionics

AN/APS-145 Radar

OL-483/AP IFF interrogator system

APX-100 IFF Transponder

OL-698/ASQ Tactical Computer Group

AN/ARC-182 UHF/VHF radio

AN/ARC-158 UHF radio

AN/ARQ-34 HF radio

AN/USC-42 Mini-DAMA SATCOM system

Variants

The Northrop Grumman E-2 Hawkeye is an American all-weather, carrier-capable tactical airborne early warning (AEW) aircraft. 

W2F-1

Original designation of the Hawkeye, changed to E-2A in 1962.

E-2A

Initial production version, was W2F-1 before 1962. 59 built.

TE-2A

Two E-2As converted as crew trainers.

YC-2A

Two E-2As, BUNOs 148147 and 148148, converted as prototypes of the C-2 Greyhound

E-2B

As E-2A but fitted with improved computing, enlarged outer fins.

52 converted from E-2A.

YE-2C

Two E-2As, BUNOs 148712 and 148713, converted as E-2C prototypes.

Designated as YE-2C and NE-2C respectively.

These airframes then finished out their useful life being used as TE-2C pilot trainers.

E-2C

As the E-2B but with all new electronics, surveillance radar and search radar, 63 built.

In “plus-models” the E-2C also has upgraded turboprop engines.

E-2C Group 0

Initial production version of E-2C, fitted with AN/APS-120 or AN/APS-125 radar.

Lengthened nose compared to earlier versions

E-2C Group I

New radar (AN/APS-139), plus upgraded mission computer and upgraded engines.

18 new build aircraft.

E-2C Group 2

AN/APS-145 radar, further improved electronics.

E-2C Group 2 Plus (Nav Upgrade)

Avionics upgrade, inclusion of GPS into weapon system.

E-2C Hawkeye 2000

New mission computer, Cooperative Engagement Capability (CEC) and additional satellite communications aerial.

Originally designated Group 2+.

E-2D

A variant with new avionics suite, improved engines, a new “glass cockpit” and the potential for air-to-air refueling.

E-2T/K

E-2C variant for Republic of China (Taiwan), with parts taken from retired E-2Bs (USN BuNos 151709, 151710, 151724, 152479).

However, these aircraft have the same level of electronics as the E-2C Group II Hawkeyes with their APS-145 radars and are referred to as E-2T, with “T” standing for Taiwan.

On July 31, 1999, Taiwan was approved to acquire two additional E-2 built to Hawkeye 2000 standard.

Later, the four original E-2T were also upgraded to the same standard.

The upgraded aircraft were referred to as E-2K.

 

 

 

 

 

 

 

 

 

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