EA-6B Tactical Electronic Jammer"Prowler"

 The EA-6B Prowler is included in every aircraft carrier deployment. The EA-6B's primary mission is to protect fleet surface units and other aircraft by jamming hostile radars and communications. The EA-6B is an integral part of the fleet's first line of defense, and will remain so well into the next century.

The EA-6B Prowler electronic warfare aircraft - which played a key role in suppressing enemy air defenses during Operation Desert Storm - enhances the strike capabilities not only of carrier air wings but of U.S. Air Force and allied forces as well. The decision to retire the Air Force EF-111A Raven and to assign all Department of Defense radar jamming missions to the Prowler adds to the significance of the EA-6B in joint warfare. With its jamming and High-Speed Anti-Radiation Missile (HARM) capability, the Prowler is a unique national asset that will be deployed from land bases and aircraft carriers. Its ability to monitor the electromagnetic spectrum and actively deny an adversary's use of radar and communications is unmatched by any airborne platform worldwide.

The Prowler is derived from the two-seater A-6 Intruder attack aircraft. The basic airframe was stretched and strengthened to accommodate a four-seat cockpit. Another distinguishing feature is the pod-shaped fairing at the top of the vertical fin.
 

The heart of the EA-6B is the AN/ALQ-99 Tactical Jamming System. The Prowler can carry up to five pods (one belly mounted and two on each wing). Each pod is integrally powered and houses two jamming transmitters that cover one of seven frequency bands. The EA-6B can carry any mix of pods, fuel tanks and/or HARM anti-radiation missiles depending on mission requirements.

 The EA-6B's tail fin pod houses sensitive surveillance receivers, capable of detecting hostile radar emissions at long range. Emitter information is processed by the central mission computer. Detection, identification, direction-finding, and jammer-set-on-sequence may be performed automatically or by the crew.

The crew of the Prowler consists of the pilot and three electronic countermeasures officers (ECMOs). The ALQ-99 jammers are operated by the two ECMOs in the aft cockpit. The ECMO in the right front seat is responsible for navigation, communications, and defensive electronic countermeasures.
In the coming years, the Prowler fleet will be modernized and upgraded to keep the aircraft and its systems abreast of evolving threats and to maintain aircraft safety. The Block 89A upgrade program will address structural and supportability problems associated with aging aircraft and includes numerous avionics improvements for safety of flight and joint interoperability. Later improvements to the Prowler's AN/ALQ-99 tactical jamming system, including the Improved Capabilities (ICAP) III upgrade, new high and low frequency transmitters, and continuing structural enhancements, will ensure that the EA-6B remains the world's premier tactical electronic warfare platform and a force multiplier for years to come.

The Marine Corps EA-6B Prowler provides Airborne Command and Control (C2W) support to Fleet Marine Forces to include electronic attack (EA), tactical electronic support (ES), electronic protection (EP) and high speed anti-radiation missile (HARM).

The EA-6B's ALQ-99 OBS is used to collect tactical electronic order of battle (EOB) data which can be disseminated through the command and control system while airborne, and which can be recorded and processed after missions to provide updates to various orders of battle. The ALQ-00 TJS is used to provide active radar jamming support to assault support and attack aircrtaft, as well as ground units. Additional suppression of enemy air defenses (SEAD) capability is available with the employment of HARM.

Marine Prowlers may be land-based from prepared airfields, or they can operate from expeditionary airfields (EAF). They may also be sea-based, operating from aircraft carriers. Marine Prowlers are unique in their integration with the Tactical Electronic Processing and Evaluation System (TERPES). TERPES provides post-mission analysis of EA-6B ES data for reporting and updating orders of battle. It also provides post-mission analysis of jamming and HARM employment for reporting, assessing and storing mission data.

 Following the transition from the EA-6A aircraft to the EA-6B, Marine Tactical Electronic Warfare Squadron 2 (VMAQ-2) continued to provide detachments to Carrier Air Wing Five on board the USS Midway. In 1980 VMAQ-2 completed its assignment aboard the Midway and began shore-based rotations with the 1st Marine Aircraft Wing in Iwakuni, Japan. Detachments were subsequently sent back to sea duty aboard the USS Saratoga and USS America. Marine Prowlers supported joint operations against Libya in 1986 from the carrier.
 

During Operations Desert Storm and Desert Shield VMAQ-2 had one detachment (six aircraft) deployed in Japan and the remainder of the squadron (12 aircraft) deployed to the Persian Gulf. The Reserve squadron, VMAQ-4 (six aircraft), transitioned from the EA-6A to the EA-6B and subsequently relieved the detachment in Japan. During Desert Shield the squadron flew 936 sorties for over 2100 hours. Marine Prowlers flew 495 combat missions totaling 1622 hours, supporting the full spectrum of joint and combined missions.

Effective Oct. 1, 1992, the Marine Prowler community reorganized its structure. VMAQS are now structured into four active force squadrons (VMAQ-1, 2, 3, 4). Each squadron now has at least five aircraft. This restructuring provides the flexibility necessary for continuing to support peacetime requirements, as well as the capacity to concurrently assign Marine EA-6B forces to commanders in different areas of operation. One squadron was assigned to Carrier Airwing One on USS America (CV 66) in FY95, while the others continue to support the Unit Deployment Program and CINC contingency requirements.