Showing posts with label AESA Radar. Show all posts
Showing posts with label AESA Radar. Show all posts

Friday, December 4, 2015

US DoD Being Requested To Rethink Electronic Warfare

In a world where long-range guided missiles and sophisticated radars are the norm, analysts and lawmakers are urging the Pentagon to rethink the way it operates in the electromagnetic spectrum to gain new advantages over near-peer competitors, such as Russia and China.
An E-6B Joint Surveillance Target Attack Radar System takes to the skies, Aug. 18, 2007.
Over the past few decades, competitors’ advancements in sensor and missile technology have forced the US military to operate farther and farther away from its intended targets, according to a report released this week by the Center for Strategic and Budgetary Assessment (CSBA). The Pentagon must shift toward using low-power countermeasures to defeat enemy sensors, as well as low-power sensors and communications.

During a Dec. 2 event on Capitol Hill to release the report, the report's co-authors and CSBA senior fellows Mark Gunzinger and Bryan Clark said the military must invest in technology to avoid detection and confuse enemy air defenses — for instance stealth aircraft, electronic jammers and decoys. Cheap, expendable unmanned vehicles, in the air or undersea, are crucial to this approach, they said.

Much of this technology is already fielded, but the Pentagon is not using it to its full potential, Clark stressed. Advancements like electronically scanned array (AESA) radars, the Navy’s Next-Generation Jammer and the Surface Electronic Warfare Improvement Program — an upgrade of the SLQ-32 shipboard electronic warfare (EW) system — are a good start. But the military could do much more with these systems, Clark said.

“So these new systems are coming out with these new technologies, but they are not necessarily being used in a way that exploits those new technologies — they are going to be used in a way that simply mimics how the predecessor system was used,” Clark said. “New operational concepts are necessary to leverage the technologies we’re already fielding.”

The Pentagon must invest in improving networking between the individual systems, agility in frequency and power, multi-functionality and miniaturization, Clark said. For example, operators could take a sophisticated jammer, currently deployed on an existing aircraft, and install it on a low-cost, expendable UAV that could penetrate farther into enemy territory.

Gunzinger blamed a “stove-piped” acquisition process, both within and between the armed services, for slowing progress in developing new concepts of operations in electronic warfare.

“That kind of a structure doesn’t really facilitate — it’s not conducive to the development of multifunction capabilities, such as an array that can act as a radar or a jammer or [do] cyber, and perhaps other missions, all in one package,” Gunzinger said. “Who is going to be the guru who is the champion for developing a new capability across the DoD?”

Reps. Randy Forbes, R-Va., Jackie Walorski, R-Ind., Rick Larsen, D-Wash., and Jim Langevin, D-R.I., also spoke at the event.

One major program the Pentagon could rethink is the Air Force’s much-delayed effort to recapitalize its Joint Surveillance Target Attack Radar System (JSTARS) fleet, Gunzinger told Defense News before to the official report release. In a highly networked, contested environment, it does not make sense to use a non-stealthy business jet for battlefield management, he said.

Although the Air Force has used JSTARS to great effect in the Middle East over the past few decades, the operational concept of the plane is “already untenable,” Clark said.

“JSTARS is getting flown really hard in places like the Middle East where there’s no threat, and even that is starting to be constrained because there’s places that it can’t fly anymore because of the air threat in Syria and from Iran and the air threat from Russia,” Clark said.

Some offices in the Pentagon are examining whether the military needs a dedicated, manned aircraft to conduct both battle management and intelligence, surveillance and reconnaissance (ISR), Gunzinger said. US forces might do better to disaggregate the ISR and battle management missions, he suggested. UAVs can conduct ISR undetected in enemy territory by using passive or low-power sensors, while ground or sea forces can do battle management from outside the immediate engagement area.

“When you start to think that the air environment in particular is becoming increasingly contested, certainly in the Pacific, certainly in Europe, certainly in the Persian Gulf region … you have to ask, well, how are you going to use this in the future in those environments, and is it worth it, frankly?” Gunzinger said.

JSTARS is particularly vulnerable to proliferating threats like Russia’s S-400 air defense system that can easily detect the aircraft’s high-power radar, Clark said.

Gunzinger and Clark’s comments on JSTARS echo concerns voiced recently by outgoing Air Force acquisition chief William LaPlante. The Pentagon may scrap the existing recapitalization program and go back to the drawing board, LaPlante said Nov. 24.

“There’s still debate in the building, outside the Air Force, on whether you do this or you do other things,” he said, explaining that some people want to trade JSTARS for unmanned platforms like Northrop Grumman’s Global Hawk remotely piloted surveillance aircraft.

Air Force Chief of Staff Gen. Mark Welsh framed the debate over JSTARS differently, arguing that combatant commanders want the capability, but budget reality may force the Pentagon to postpone the program.

“The question is where does it fit in the priorities of things? To the combatant commanders it’s high on the priority list, but so are a lot of other things,” Welsh said Dec. 1 at an event hosted by the Atlantic Council. “If there are people in the department that think there’s a different way to provide this capability for less money, we should have a debate about that.”

The Air Force will continue to “push hard” to fund the JSTARS recapitalization program in the fiscal 2017 budget, but nothing is certain, Welsh said.

Wednesday, November 25, 2015

New-generation Gripen ( Gripen-NG) Enters Final Assembly Phase At SAAB

Saab has lifted the joined fuselage section for its first Gripen NG prototype into final assembly, and says its programme is on track to deliver advanced capability to Sweden and export customer Brazil.

Revealing the advance at the Dubai air show on 10 November, Ulf Nilsson, head of Saab’s aeronautics business area, said the fighter’s three main sections required only one minor adjustment before they could be joined. “We had less [production line] feedback on the first aircraft than we have on the running production of the [Gripen] C/D,” he notes, attributing this to the new model’s all-digital design.

Saab

Nilsson confirms that lead prototype aircraft 39-8 is on schedule to enter flight-testing during 2016, but will not reveal a target date.

He also highlights the progress being made with the manufacturer’s Gripen E/F deal with Brazil. A first group of 50 Embraer engineers and their families recently arrived in Linköping, with a total of 300 to spend up to two years in Sweden to build the Brazilian company’s design and production expertise on the type. “It’s full-speed ahead – a real long-term partnership,” he says, adding: “they call it a Brazilian aircraft; they are committed to the programme.”

With Saab holding contracts to produce 60 new-generation aircraft for Sweden and 36 for Brazil, Nilsson says the company is looking to build on its success. It is looking with interest at emerging requirements in Finland and Belgium, and also hopes to meet the needs of nations including Bulgaria, Croatia and Slovakia through deals supported by the Swedish government.

Noting that Saab already has the Czech Republic and Hungary as operators, he quips: “Maybe Gripen will be the true ‘Euro fighter’!”

Longer-term opportunities could also lie with Indonesia, Malaysia, the Philippines and potentially in southern Africa, but Saab notes that it is not promoting the aircraft to nations in the Middle East.

Meanwhile, Saab last month delivered its new MS20 operating standard software for the Gripen C/D to its Swedish customer, with final flight testing now under way. The enhancement – which will soon enter operational service – includes the addition of MBDA’s Meteor beyond-visual-range air-to-air missile.

The company also took advantage of the Dassault-led Neuron unmanned combat air vehicle’s recent visit to the Vidsel test range in Sweden, by flying its Gripen NG demonstrator in partnership with the stealthy type.

Pia Ericsson/FMV

Nilsson declines to provide details of the test activity conducted by the Gripen, but confirms: “we can feel comfortable that we have the right performance for the future in this area.”


Source: Flight Global 

Sunday, November 8, 2015

Canted Active Electronically Scanned Array (AESA) Radar of J-10B Fighter Jet

Newly posted image gives us rare opportunity to have a look at Chinese Canted Active Electronically Scanned Array (AESA) Radar of J-10B fighter jet of the People's Liberation Army Air Force (PLAAF).



 

Thursday, October 8, 2015

JF-17 Thunder Block-III Getting AESA and Upgraded Engine

Block -3 has AESA & an upgraded engine ~ 98kn of after burning thrust plus upgraded software & a chin mounted hard point.

Sunday, May 3, 2015

The Chinese Air Force's Super Weapon: Beware the J-11D Fighter

According to Russian media outlets, which cited unnamed Chinese reports, on Wednesday the People’s Liberation Army Air Force conducted the first flight tests of its J-11D fighter aircraft. The plane is an upgraded version of the J-11B fighter jets, which themselves are copies of the Russian-made Sukhoi Su-27.


According to the reports, the new J-11D incorporates a number of technologies from China’s J-16 fighter jets. Both planes are manufactured by the Chinese company, Shenyang Aircraft Corp, and the J-16 is believed to have incorporated some technologies from the J-11. However, the J-16 is a multi-role strike fighter.

Perhaps most notable of the J11-D’s upgrades is that it reportedly incorporates the J-16’s advanced Active Electronically Scanned Array (AESA) radar. When the PLAAF first took delivery of the J-16 in April of last year, Jeffrey Lin and P.W. Singer wrote in Popular Science that:

The most important upgrade to the J-16 is an Active Electronically Scanned Array (AESA) radar, which is more powerful than the slotted array radars that the Su-30 and JH-7A have. The AESA radar allows the J-16 to intercept enemy aircraft at longer ranges than either of its predecessors, and to attack multiple surface targets simultaneously. The AESA radar would also be datalinked to other Chinese platforms, including unmanned vehicles, to increase their situational awareness.

This AESA upgrade significantly enhances the J-11D’s capabilities over those of its predecessors. In fact, pointing to the AESA upgrades, some analysts have said the new J-11Ds could be China’s version of the Sukhoi Su-35s, which is Russia’s most deadly fighter jet. In fact, some U.S. military officials have told The National Interest the F-15C Eagle and Boeing F/A-18E/F Super Hornet “would both have their hands full” in combat against the Su-35.

Besides the AESA radar upgrade, Russia Today reports that the new J-11D uses more composite materials and boasts more air-to-air missiles like the PL-10 and PL-15 than did earlier versions of the plane. It also has a new in-flight refueling arrangement that is similar to the J-15.

Also very notable is that according to some sources, the new J-11D is powered by two WS-10A engines, which are indigenous engines. For all its rapid advances, Chinese aerospace companies have continued to struggle to make high-powered engines that are reliable.

Tuesday, April 21, 2015

The ATR 72 MP, Maritime Surveillance Aircraft

The ATR 72 MP is a maritime surveillance aircraft developed by Alenia Aermacchi. Built based on the ATR 72-600 platform, the ATR 72 MP serves as a low-cost, consistent, sea-surface surveillance platform for the military forces across the world.


ATR 72 MP is a maritime surveillance aircraft manufactured by Alenia Aermacchi.


The aircraft helps to detect, locate and rescue people from broken ships and aircraft. It offers cost-effective surveillance and exclusive economic zone patrol and search-and-rescue (SAR).
The equipment installed on the aircraft, such as sensors, communications equipment and mission systems can be customised depending on the mission requirement.

ATR 72 MP aircraft orders and deliveries

The Italian Air Force awarded a contract for delivery of four ATR 72 MP maritime patrol aircraft to replace its ageing Breguet Atlantic aircraft, in December 2008.
A $137.4m contract was awarded to Alenia Aeronautica in November 2011 for providing logistical support for four ATR 72 MP aircraft of the Italian Air Force.

Design features of ATR 72 MP patrol aircraft

Compared to its predecessor the ATR 42 MP, this aircraft has significant endurance, more interior space and the latest control systems.The ATR 72 MP is manufactured with composite materials, which make the aircraft highly resistant to damage and corrosion. The airframe is designed to install sensors and other function-specific modules such as bubble windows and an in-flight operable door.

The ATR 72 MP has an operational empty weight of 14,586kg and maximum take-off weight of 23,000kg. The aircraft can carry a payload of 5,000kg.

ATR 72 MP aircraft cockpit and avionics

The ATR 72 MP aircraft is equipped with a glass cockpit that integrates five LCD screens as a standard fitment, along with commercial-off-the-shelf (COTS) components for better interface and high resolution graphics.
The SELEX Galileo airborne tactical observation and surveillance (ATOS) mission system is installed with four interchangeable strategic operator stations to simplify the operations. It includes three sensors including an electro-optical turret FLIR system Star Safire HD, AESA SELEX Galileo Sea Spray 7000E search radar and an ESM (Electronic Support Measures) sensor from Elettronica.
The 360° operated turret helps to identify targets around the clock using its wide elevation range.
The multimode, X-band 360° search radar enables long-range target detection, tracking and identification of approximately 100 targets at a time using track while scan application (TWS).
The ATR 72 MP aircraft includes automatic identification system (AIS) and a V/UHF 360° direction-finding device to locate the direction of range radio emitters between 30MHz and 470MHz frequencies.
The side-looking airborne radar (SLAR) installed on the aircraft helps to detect water pollution from long range and trace underwater activities close to the sea surface. The Hyper Spectral Scanner (HSS) of the aircraft helps to find the type of polluting agent.

ATR 72 MP self protection system and countermeasures

Self protection systems on the ATR 72 MP aircraft include chaff and flare dispenser and a warning system for radars, missiles and lasers. The standard aircraft configuration includes ESM and self-protection systems for reconnaissance and operations in mission critical battlefield.

Engine details of ATR 72 MP

The power plant of the aircraft includes two Pratt & Whitney Canada PW 127M turboprops, which each provides a maximum take-off power of 2,750shp.
The engine is fitted with a Hamilton Sundstrand 568F six-blade, variable-pitch propeller.

ATR 72 MP aircraft performance

The ATR 72 MP aircraft can cruise at a maximum speed of 459.29km/h. It can fly at an operational altitude of 7,620m, but has a maximum endurance of ten hours at 1,524m altitude.
The aircraft can take-off from runways as short as 1,170m and land on runways as short as 630m.
The aircraft can be operated in extreme weather conditions and altitudes. It features a Hotel Mode, which enables the aircraft to operate from remote bases.

Monday, March 2, 2015

Pakistan Re-equips Squadron With AEW&C Planes

ISLAMABAD — Pakistan's Air Force (PAF) Thursday stood up its unit of Chinese Karakorum Eagle AEW&C aircraft in a ceremony attended by the head of the PAF, Air Chief Marshal Tahir Rafiq Butt, and Prime Minister Nawaz Sharif.

Though the exact location of the ceremony was not given, it is believed to have been held at PAF Base Masroor in Karachi as the prime minister was known to have been in the city that day.
Brian Cloughley, an analyst and former Australian defense attache to Islamabad, said AEW&C "is very good news for the PAF – and for Pakistan" because it "will dramatically improve early warning capabilities which up until now have been comparatively rudimentary."
The ZDK-03 Karakorum Eagle is a dish-based AEW&C system mounted on a Shaanxi Y-8F600 aircraft. Though never confirmed, it has been speculated that the dish houses an AESA antenna.
Four were ordered in 2008 with the first delivered in 2010.
Air Commodore Syed Muhammad Ali, a spokesman for the Air Force, confirmed all Karakorum Eagle aircraft on order have now been delivered, but could not say if more would be ordered from China.
The aircraft join No.4 Squadron, which was first established in 1959 with Bristol Freighter transports and Grumman HU-16 Albatross amphibians. The amphibians were used for maritime reconnaissance, search and rescue, and casualty evacuation alongside Sikorsky H-19D helicopters. The HU-16s were retired in 1968 and the H-19Ds in 1969.
The unit was then "number-plated" until officially re-equipped with the Karakorum Eagle.
The four Karakorum Eagle AEW&C aircraft join the surviving three Saab Erieye AEW&C aircraft ordered in 2005 and delivered from 2009. One of the four Erieye aircraft was destroyed in a terrorist attack on Kamra Air Base in August 2012.
That the Air Force operates two types of AEW&C aircraft for the same mission has been much commented on.
Analyst Usman Shabbir of the Pakistan Military Consortium think tank says the Karakorum Eagle's mission is "[b]asically the same job as Erieye but based in southern sector.
"To cover all the length of Pakistan we needed additional AEW&C aircraft and ZDK-03 was the answer due to political and financial considerations," he said.
Former Air Commodore Kaiser Tufail says the PAF was not keen on their purchase.
"The [Karakorum] Eagle was purchased rather reluctantly, under pressure of [then President] Gen. Musharraf, as a political expedient [Chinese appeasement], and not because of any reasons of technical superiority," he said. "It would have been more cost effective to manage a single type than these two vastly different ones."
Though he now believes attitudes have changed.
"Having said that, the performance of the Eagle has turned out to be surprisingly good, which takes some sting out of the initial criticism," he said.
Tufail says an absence of news of the fourth aircraft being delivered may mean it is undergoing installation of Link 16 datalink equipment to enable it to communicate with all of the PAF's aircraft, particularly its F-16s, and not just the JF-17 Thunders.
To date the Erieye AEW&C aircraft have been able to communicate with the Western aircraft in service such as the F-16, and the Karakorum Eagle with the Chinese aircraft such as the Sino-Pak JF-17, and perhaps the F-7PG.
Cloughley does not think this has changed.
"It's unlikely that the systems will complement those of the US, but cooperation with China is more important for Pakistan," he said.
PAF officials have previously told Defense News that this was impractical and would change.
Though perhaps not as technologically advanced as the Swedish Erieye, according to Haris Khan of the Pakistan Military Consortium think tank, the two types of AEW&C aircraft have worked very well together with the installation of Link 16 compatible equipment throughout the PAF's aircraft fleet.
Combined, they have effectively covered the country and much of Pakistan's maritime area of interest.

Wednesday, August 27, 2014

Zhonghuashendun: Chinese "Aegis" Destroyers

 All 12 hulls of the Type 052Ds are intended to induct in the PLAN Fleets are as below listed:
Ships of Class (Type 052D)

Chinese media informally designate the Type 052D as "Zhonghuashendun / 中华神盾" which means "Chinese Aegis". The new destroyer is equipped with a flat-array AESA radar, a 64-cell VLS and modern long-range anti-air missiles. The destroyer is expected to have capabilities similar to those of a U.S. Navy Arleigh Burke-class destroyer. 
There is speculation that the radar systems on Type 052D destroyers are able to detect stealth fighter aircraft, particularly the American F-35 Lightning II. Russian sources claim the ship's AESA radar can detect, track, and launch weapons against the F-35 at a range of 350 km (220 mi; 190 nmi). The range may be exaggerated, given the ship's HQ-9B SAMs have an estimated effective range of only 200 km (120 mi; 110 nmi), but it may be capable of detecting the F-35 if the Type 346 radar is an S-band radar like the American SPY-1 radar. 
Tactical stealth fighters are optimized to be undetectable from higher-frequency radar bands such the C, X, and Ku, but features like the tail-fin may make it susceptible to lower S or L-band frequencies. Even so, much depends on the distance between the ship and aircraft and the strength of the return of the omni-directional signal, meaning a target may not be picked up at a tactically significant distance. L-band and most S-bands have resolution cells that cannot generate quality targets for weapons tracking, even if it is detected. 
However, the SPY-1 and Air and Missile Defense Radar operate in higher frequency portions of the S-band and are able to generate weapons quality tracks, so Chinese systems could be similar. China is also suspected to be reducing the size of the large radar resolution cells by connecting multiple low-frequency radars through high-speed data-networks, which has the potential to refine resolution enough for tracking a missile to the target

Saturday, March 15, 2014

Third Chengdu J-20 prototype flies

The third prototype of the Chengdu J-20 stealth fighter made its maiden flight successfully on Saturday 1st March. According to the witness report on Chinese social media, the J-20 prototype “2011″ took the sky at about 12:00 local time, escorted by a Chengdu J-10S two-seater fighter. The entire flight lasted about 30 minutes before the aircraft landed safely.

The “2011″ prototype was first spotted at the test airfield of the Chengdu Aircraft Industry Corporation (CAIC) preparing for its maiden flight in early 2014. A low-speed taxi test took place on 16 January, followed by a high-speed taxi test on 18 January.

J-20 prototype “2011″ in take-off during its maiden flight
The maiden flight of the first J-20 prototype “2001″ in January 2011 took the Western intelligence completely by surprise. A second prototype “2002″ then made its maiden flight in May 2012.

Compared with its two predecessors, the “2011″ prototype features a number of modifications in its aerodynamic design and systems, with the most notable being a chin-mounted electro-optical targeting system (EOTS). Other modifications include new air intakes, redesigned nose section, differently shaped leading-edge extension, redesigned frame-strengthened canopy, different gear bays, and slightly different forward canard and tail fin tips. In addition, the aircraft also wears a new light-grey colour radar-absorbing coating.

(Top) J-20 prototype “2001″ that first flew in January 2011; (Bottom) The new J-20 prototype “2011″
The latest flight test suggests that rather than serving as a technology demonstrator, the J-20 may be on its way to become the world’s third operational 5th-generation fighter, after the Boeing F-22A Raptor and the Lockheed Martin F-35 Lighting II. However, before this can happen Chengdu engineers will need to overcome a number of technical obstacles, such as the lack of indigenous turbofan jet engine and credible avionics.