Saab ERIEYE AEW&C
The Erieye is used on a variety of aircraft platforms, such as the Brazilian Embraer E-99 or EMB-145. It has also been implemented on the Saab 2000. Actions based on real-time information are crucial and demand systems that offer high situational awareness. Erieye is the first high-performance, long-range Airborne Early Warning & Control (AEW&C) system based on active phased-array pulse-Doppler radar. This new-generation system can be installed in a variety of commercial and military aircraft, including regional jet or turboprop airliners. It meets full AEW&C requirements for detecting and tracking targets at ranges of up to 450 km over land or water. The Erieye AEW&C Mission System includes sensors, C2 and communications. These are complemented by a comprehensive suite of training and support systems. Due to its compact nature, the Erieye system is installed on small aircraft, both jet and turboprop, giving a low cost profile.
The Saab 2000 ERIEYE AEW&C surveillance system enables outstanding control over both land and sea, even under heavy jamming conditions. Using the latest AESA technology and a versatile EW system, even the smallest air and sea targets will be detected. The ERIEYE AEW&C is a complete multi-role system for multi-mission operations. The system is a reliable and proven solution with continuous evolution, and the latest generation ERIEYE radar is now even more capable of detecting small air and maritime surface targets such as hovering helicopters, RIB’s and jet skis.
The Erieye radar is the first of its kind to use ground-breaking AESA technology. The truly multi-role Erieye radar detects and automatically tracks air and surface targets over a huge area, extending over 900 km. It is designed to track the smallest of objects, such as cruise missiles and jet-skis, even among heavy clutter and in jamming environments. Flying at high altitude, Erieye covers a much wider area than a conventional ground based sensor system can. The effective surveillance area is more than 500,000 sq km horizontally and 20 km vertically. It detects air targets at a range of up to 450 km. Sea coverage is only limited by the horizon, which is around 350 km (190 nm). Within this area, every object in the air and at sea will be detected and pinpointed.
The ability to detect both air and sea targets makes it ideal for both military and security applications. It is designed to track the smallest of objects, such as cruise missiles and jet-skis, even among heavy clutter and in jamming environments. The operator consoles are true multi-role, having identical functionalities. The role decides which functions the operator will use. By using the concept of spiral development, the system has been upgraded for each new customer. Despite having the same outward appearance, the inside is new. This process ensures that each customer obtains the latest technologies and while each subsystem remains mature.
The performance has been improved and the functionality has been increased with new radar modes etc. The modern modular architecture of the Erieye system ensures that existing customers will benefit from this development through upgrades. The Erieye Mission System installed in an aircraft will form a complete AEW&C system. The on-board C2 system allows the operator to have full control of the Air and Sea Picture through inputs from radar, IFF, ESM and data links. An extensive communication suite is included, for both voice and data. Data Links are easily integrated to existing AOC with the Reporting Centre System. Mission Planning and Debriefing System, Mission Training System are examples of the ground segment.
The Erieye Mission is designed to operate with both jet and turboprop platforms. It is currently operational on three different platforms: Saab 340, Embraer-145 and Saab 2000. The number of operators can vary between 1 and 5, depending on the scenario. It can even be controlled remotely.
S 100B Argus SAAB 340 AEW&C
An AEW version with a phased-array radar in a rectangular pod on top of the fuselage was developed in the early 1990s. In 1994 the first Saab 340 AEW &C was delivered and radar integration work was begun. In 1995 the Saab 340 AEW & C was re-designated S 100B (S = Spaning = Reconnaissance) and given the official name Argus. The Swedish air force ordered six aircraft, four fitted with radar, two fitted for, but not with, radars to be used as tranports until a need for more airborne radars materialises. Some are used by Japan as Search-and-Rescue aircraft.
The Ericsson PS-890 Erieye radar uses an active array with 200 solid state modules. The range of the S-band, 3 GHz, side looking radar is 300 km. The 1,985-lb (900-kg) dorsal antenna is housed in a 29-ft 6.3-in (9-m) long box radome mounted atop the fuselage. Utilizing adaptive side lobe suppression, the look angle on each side is about 160 degrees. From its standard operational altitude of 6000 meters (19,685 feet, or FL200) the radar has a maximum range of 450 km (279 miles). Against a fighter-sized target effective range is approximately 330 km (205 miles). Seaborne targets can be detected at 320 km (1998 miles), though this is a function of the aircraft's cruising height. The electronically scanned antenna can scan sectors of interest frequently while others are monitored, and asingle sector can be scanned in different modes at the same time. The aircraft does not carry controllers (although it's large enough to do so), but functions as an airborne radar integrated with the total air defence network.
Saab 2000 AEW&C
The Saab 2000 AEW&C is an advanced tactical surveillance system. It utilizes the latest generation Active Electronically Scanned Array ERIEYE radar, now capable of detecting small air and sea targets, hovering helicopters and cruise missiles. It has a 450km instrumented range and provides coverage at 20km (65,000 ft) and can effectively survey a 500,000 square meter area and automatically track priority targets. In addition to the AEW&C role, the aircraft can be used for national security and border protection missions, as an airborne command and control for disaster management coordination or emergency air traffic control.
The ERIEYE AEW&C was the world’s first operational airborne Active Electronically Scanned Array (AESA) radar in service. The Saab 2000 ERIEYE AEW&C utilises the latest generation ERIEYE radar, now capable of detecting small air targets, hovering helicopters, cruise missiles and small sea targets such as inflatable rubber boats, for a more complete surveillance picture. In June 2006, SAAB signed a $ 1.2 billion contract to supply S100B Argus turboprop airborne early warning (AEW&C) systems. Pakistan aimed to buy 14 SAAB 2000 aircraft from Sweden: 7 for the PAF's AEW&C role as Argus aircraft, and the remaining 7 will reportedly be acquired by the state-owned PIA airline.
The Saab 2000 ERIEYE™ Airborne Early Warning & Command System (AEW&C) took a brief pause from its successful flight test program to make a debut appearance at the Farnborough International Air Show in July 2008. The flight test program began in April in Linköping and moved to Granada, Spain for the favorable weather and hot and high conditions during the summer prior to arriving at the world’s largest air show. Towards the end of 2008, the aircraft was handed over to Saab Surveillance Systems to implement the systems testing phase of the program.
Key performance data
|Max endurance||> 9.5 hours|
|Max range||> 2,000 NM|
|Time to climb 25,000 ft|| 15 min |
Radar operational three mins after takeoff and during climb
|Cruise speed||340 knots (TAS)|
|Patrol speed||160 knots (IAS)|
|Takeoff distance||1,400 m|
|Service ceiling||30,000 ft|
|Radar system performance||
||Service||Different configurations of the ERIEYE AEW&C system have been sold to seven countries as of 2010: