Senin, 06 Juni 2011


EMB 145 AEW&C / E 99

The EMB 145 AEW&C is the most advanced and affordable Airborne Early Warning and Control aircraft available on the market.. It is the perfect blend of Embraer’s proven, reliable, and cost-effective ERJ 145 platform, with a unique, high-performance, multi-mode active phased-array AEW radar, a powerful command & control system and a comprehensive set of support systems like ESM, self-protection and communications including data-links.

The core of the EMB 145 AEW&C is a compact, state-of-the-art mission system. Built by Ericsson Microwave, the ERIEYE AEW system has intelligent sensor technology and a user-friendly command and control system, capable of quickly acquiring accurate and comprehensive information .
Latest developments in sensors and systems
The outstanding radar system can detect and track both sea and airborne targets, over land and water, all with an impressive instrumented range.
An electronically scanned radar beam overcomes the limitations of rotating antennas through faster beam-pointing to the target or area, a characteristic only possible with active phased array technology. This gives the radar the ability to adapt the transmission waveform according to target dynamics and background clutter. The result is exceptional performance to simultaneously track multiple air and sea targets while protecting the radar from single failure with graceful degradation capability.

Airborne Early Warning
The primary mission of an AEW platform is to detect, track and identify targets in its patrol area and forward these data so as to give friendly forces an accurate and comprehensive operational picture. The EMB 145 AEW&C performs these tasks with excellent results. With an instrumented range of 450 km, the AEW radar will detect and track targets long before they may become a threat. The IFF interrogator, associated with supporting C2 databases, provides fast and reliable target identification. Finally, the advanced data-links allow all these vital data to be disseminated in a timely manner throughout the battle space to all units that need them. In the end, decision makers have the information they need at the time they need it.
More information about the Multi-role
Airspace Management
Fighter Allocation and Intercept Control
Signals Intelligence
Surveillance and Control of Borders, surveillance of exclusive economic zones
and sea surveillance

High availability
A high degree of commonality with the highly successful ERJ 145 means that (1) the airframe sports a record of 7+ million flight hours, 8+ million cycles and (2) a large number of support centers worldwide puts spare parts no more than a few hours away from where they’re needed.

The aircraft’s platform was designed to be economically efficient in the highly demanding environment of the civilian commercial aviation. Low acquisition and direct operating costs are inherited from the commercial aircraft.

Proven solution
The EMB 145 AEW&C is currently in operation with the Brazilian Air Force, carrying out aerial surveillance, mission coordination, aircraft vectoring and other missions in the Amazon basin. It is one of the mainstays of the SIVAM program, one of the most ambitious and successful vigilance programs recently developed worldwide.

The EMB 145 AEW&C has also been delivered to Greece, where it provides the Hellenic Air Force with early warning and control capabilities compatible with the NATO environment, and to Mexico, to be used in its border surveillance program.

Historical development
Project SIVAM
Aiming to curb illegal activities and provide data to SIPAM (Amazon Protection System), was established by the Brazilian Government, through the Ministry of Aeronautics, SIVAM (Amazon Surveillance System), which employs the means for collecting, processing and dissemination of data on Amazon, Intending to promote sustained development of this region.
For this, the SIVAM has a network of radars surface, responsible for monitoring the airspace Amazon, which operate both in flight safety over the forest, such as surveillance and border control. One concern is the system's coverage of air traffic flying at low altitude. An aircraft flying below 10,000 feet (3,000 meters), is a regular flight or illegal, there will gaps in coverage of the radars.
To address these situations, Brazilian Air Force (FAB), would involve aerial surveillance aircraft, specially developed for this purpose, supplementing the data produced by equipment installed on land.

E-99 aircraft
Hired to develop the new aircraft, Embraer initially made use of his model turboprop EMB-120 Brasilia, Which was subjected to work towards their qualification as a platform for integration with the radar Erieye (selected for the AWACS system).
However, the delay of almost two and a half years for the contract of SIVAM (scheduled for early 1995, its implementation took place only on July 25, 1997) added to the restrictions set by the cell of the EMB-120 Brasilia, did with which the aircraft were replaced by jet ERJ-145 At the time, recently launched in the market.
This jet, designed for regional routes, presents a structural design capable of withstanding high frequency use, and may surpass 2,800 hours of flying per year. Their internal systems as well as control of the engines, and have double redundancy, which gives the ERJ-145 high percentage of availability for missions.
On the instrument, the ERJ-145 panel displays an all-digital, the avionics systems are Primus 1000, consists of five main displays on LCD screens, interchangeable, two PFD (Primary Flight Displays)Two MFD (Multi-Function Displays) and an EICAS (Engine Indication and Crew Alerting System). Its engines are fitted with FADEC (Full Authority Digital Engine Control), Which allows for automatic starting with a complete application performance management.
To fulfill the missions AEW & C, the cell's ERJ-145 received structural reinforcement at the top of the fuselage needed to house the radar antenna Erieye; increased winglets ("Fold" wingtip to improve aerodynamics, delivering improved fuel economy and range) increased fuel capacity over the civilian version; APU (Auxiliary Power Unit) more powerful, new communication systems and navigational system data link Datalink; Sensors monitored for signs of clandestine communications; Islands command and control (Workstations), among other equipment.
The maiden flight of the EMB-145 AEW & C (formerly known as R-99A by FAB, Passed in 2008 to work with the designation E-99.)[1] occurred on May 22, 1999, with the first operational test of the radar Erieye happening on January 25, 2001.
On July 24, 2002, were delivered to the Air Force the first three E-99 (out of five) that were intended for 2/6 GAv (2nd Squadron 6th Aviation Group), headquartered in Anapolis Air Base and can be moved quickly, at any point of Brazilian territory, in cases where their capacity for surveillance and air traffic control becomes necessary.
In late 2003, the Company conducted a series of experiments involving a prototype of the ERJ-145, and a KC-130 FAB, in order to provide the EMB-145 AEW & C system with air refueling.
The 2°/6° GAv entitled Squadron Guardian, held between 23 and 25 August 2004, the first tests of interconnection between radio system Datalink Between one R-99 and three A-29 Super Tucano COIN aircraft, Completing the full operational stage of development of this aircraft for aerial surveillance.

Radar ErieyeEdit
The main sensor of the EMB-145 AEW&C is on the multi-role radar Ericsson PS-890 Erieye, antenna flat type scanning electron active, characterized by not depend on the swivel 360 degree aerial search, common to other radars of airborne surveillance.
Installed on the fuselage of the aircraft, the radar antenna Erieye contains in its interior, 192 auto-addressable modules transmit and receive signals, allowing the tracking of aircraft with smaller dimensions, or even cruise missile ships. Your e-beam, quick steering, gives operators the ongoing monitoring of the target detected, and the ability to manage multiple targets simultaneously.
At an altitude of 25,000 feet (7620 meters), is its ability to scan more than 350 km around the aircraft, which can display up to 300 air traffic. Opera in the S band, suffering less attenuation by the atmosphere, have the ability to change its frequency automatically when electromagnetic interference is suffering purposeful (Jamming).

Sensors and embedded systems of the EMB-145 AEW & C makes it able to act in a wide range of missions, including: command and control, surveillance and border control, maritime surveillance, monitoring of communications signals, coordination of search operations and rescue; vectoring fighter and air space management.

EMB-145 AEW&C of the Indian government - this variant is under development, it must have his own AWACS system, with the co-participation of Indian institution DRDO (Defence Research and Development Organisation).

General Characteristics
Wingspan: 21.00 m
Length: 29.87 m
Height: 6.75 m
Basic Operating: n/d
Maximum Takeoff: 24,000 kg
Maximum payload: n/d
Crew: 2 (pilot and copilot) + 6 system operators
Maximum speed: Mach 0.78
Range: n/d
Service ceiling: 11,278 m
Range: +6 H (On station)
Max scanning radar: +350 Km
Distance from takeoff / landing: 2,270 m (MTOW) / 1345 m
Engine: 2 turbofans Rolls-Royce AE 3007A1s of 3368 kgf of thrust per unit, with FADEC
Systems and equipmentEdit Systems and equipment section
Ericsson Erieye PS-890 (radar surveillance and air traffic control)
SSR/IFF (secondary radar identification friend-foe)
ESM system (electronic support measures) (optional)
COMINT/ELINT (monitoring sensors communications signals)
Datalink (System of transmitting and receiving secure data)
RWR/flare & chaff (Self-defense systems) (optional)
Refueling system (optional)
OperatorsEdit Operators section
Brazil: 5 aircraft
Greece: 4 aircraft
Mexico: 3 aircraft
India: 3 aircraft (variant under development)

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