Military of China, force comment.
Military of China, force comment.

Data Figure: China’s stealth fighter F -20.

According to the U.S. “Connection” magazine, October 14 Journal article said, not long ago, the United States or the world has not afraid of being the only country to detect aircraft. And now, the world, including Russia and China, many countries are developing their own stealth weapon. U.S. stealth aircraft in the near-monopoly is being eroded,

stealth technology allows weapons without being detected by radar and sensor case sneak. In order to reduce the aircraft’s radar reflection, designers often use two techniques: the design shape and radar scattering the enemy radar absorbing coating material. Smooth surface and large angular scattering radar help, it has become a symbol of stealth design features. The layout should be re-stealth aircraft design, in some cases, even into the aircraft interior, in order to reduce the large number of radar reflection. In addition, the engine exhaust to cool the exhaust gas to reduce the infrared mark. Designers have also developed a series of coatings and composite materials to absorb radar waves, and improve the ability to reduce the temperature.

since the U.S. launched its first stealth fighter F-117 “Nighthawk” aircraft has stealth technology has been greatly developed, and used helicopters, unmanned aircraft and even warships. This is to help the U.S. military killed – Osama bin Laden, the occupation of Iraq have played a very important role. The problem is that the United States in the stealth advantage can be sustained much longer.

F-117 “Nighthawk”

it is the first members of the invisible world, it is the first war of stealth aircraft; the United States in the invisible technology to maintain a monopoly of thirty years. In 1975, Lockheed – Martin’s Skunk Works began the development of the aircraft, and in 1983 completed the development. Help shape the design of its multi-angular scattering of radar waves; pilot helmet can be increased because the radar marker, F-117 whole body coating of absorbing material. However, the highly confidential nature of the project makes the Air Force until 1988 to acknowledge its existence. The aircraft in the first Gulf War has been widely used, so the Air Force in 2008, officially retired F-117.

although with stealth capabilities, “Nighthawk” is not undetectable. Bombing of Yugoslavia in 1999, when one of the aircraft may be found in the old low-frequency radar system, was eventually shot down by SA-3 air defense missiles. It is said that debris has fallen into China, it is obvious to the development of F -20.

B-2 “ghost”

Northrop – Grumman stealth bombers used in the case not to be found, through through the former Soviet air defense system. B-2′s unique wing design eliminates unnecessary structures, such as the vertical tail, thus reducing reflection. It’s four engines was on the wing in and have a special system to reduce the infrared traces, making it difficult to be found in the infrared sensor. The bomber was first opened to the public in 1988, but until 1999 took part in the bombing of Yugoslavia. Air Force in Iraq, Afghanistan and the war in Libya also used the model.

refueling without a second case, B-2 has a range of 6,000 nautical miles, loads of 20 tons; to stay away from the battlefield in the case of the bombing of targets. The machine is very expensive, priced $ 1.2 billion. Air Force was prepared to order 132, but its high price for the Air Force eventually bought only 21. United States is only 20, because one in February 2008 crash in Guam.

F-22 “Raptor”

The aircraft is considered to be America’s fifth-generation stealth fighter “Cadillac”, it is priced at 411 million USD (including R & D costs). Development of the aircraft in order to achieve air superiority, clearing the enemy’s air power, the United States in the next 50 years to help maintain “the loss is not a soldier under enemy air attack,” the record. Its flight speed and flexibility to help achieve this goal, it’s maximum speed of Mach 2 and Mach 1.5 speed to supersonic cruise (afterburner without opening the case for sustained supersonic flight).

F-22 stealth performance is also very good shape for the smooth surface, not at right angles, they were able to scatter radar waves. On the radar, the aircraft display and a bee the same size. They carry missiles, bombs and cannon are placed when not in use within the aircraft, as these are likely to increase the “Raptor” radar visibility. Meanwhile, F-22 stealth down the martial arts is also infrared.

However, this does not mean perfect F-22 program. U.S. ready to send aircraft to participate in the original spring of this year, by the United States and NATO no-fly zone in Libya perform the task. However, due to other aircraft can not communicate, it ultimately did not participate in this event. In May, the Air Force grounded all F-22 fighters; because reports indicate that the aircraft’s oxygen system may lead to “low-pressure oxygen and disease.” In September, all of the aircraft resumed flight; However, oxygen system problems have been found.

F-35

hope the U.S. Department of Defense, F-35 Joint Strike Fighter can become the main U.S. fleet. The purpose of this project is to develop aircraft to replace the active, practical and relatively inexpensive fifth-generation stealth fighter. However, F-35′s stealth capabilities compare F-22 “Raptor”; display on its radar about the same as a Golf, and “Raptor” display is roughly equivalent to the size of a bee. However, F-35 radar absorbing layer can be used with the F-22 as coating durability.

U.S. plans to develop three models, respectively, for the Navy, Marine Corps and Air Force. The aircraft can take off from aircraft carriers to provide air support, air combat. In addition, the United States and eight countries to develop the aircraft. However, F-35′s R & D, a series of problems; its price has gone from $ 69 million in 2001 to rise to the current $ 112 million. The aircraft entered service in 2012 may be, but the Air Force and the Navy until 2016 may begin receiving this aircraft; and then to the Marine Corps in 2018 in order to have the aircraft. These setbacks, especially worrying, because the United States intends to make F-35 accounted for 90% of their air power.

PAK-FA

Sukhoi Group T-50 (also known as PAK-FA) is Russia’s first stealth fighter developed, Russia boasts the fifth-generation fighter; called “an almost human intelligence,” and can emulate the U.S. F-22 “Raptor” fighter. People should have to look at, because these are not necessarily credible. Aviation authority of the Bill – Sri Lanka Sweetman large number of T-50 was designed to look, think it not as “Raptor” fighter. He wrote: “Obviously, designers and systems analysts are concerned about how much the Russian stealth fighter ready to buy the thorny issue”, and made F-22 designers with many different answers. Russia’s traditional arms clients in India and Russia have signed a joint development FGFA (fifth generation) fighter deal.

F -20

F -20 fighter planes indicates that China has begun to enter the field of the world’s stealth fighter. People do not know much of their ability, and it is still in prototype stage. However, it is sufficient for the U.S. defense experts were shocked; because this means that the U.S. dominance in the field of stealth will be eroded.

from the photo, it is more like bombers rather than fighters. May be slower, flexibility, not as the U.S. F-22 “Raptor”; former Defense Secretary Robert Gates believes that it is probably only the people from the invisible visual effects, but not avoid radar. But this does not mean that the aircraft will not cause trouble. The Pentagon’s “Annual Report of China’s military power,” said F-20 “may improve the Chinese military against U.S. military bases in the region, logistical facilities and other ground facilities capabilities.” Currently, Pentagon officials are particularly worried about the aircraft is not , do not worry about the number and its performance. Gates said the next 10 to 15 years, the U.S. will remain the world’s fifth-generation fighter with the most countries.

RAH-66 “Comanche” helicopter

“Comanche” helicopter of the U.S. Army during the Vietnam War to seek alternative OH-58 ” Kiowa “and AH-1″ Cobra “helicopter efforts. With stealth aircraft, the fuselage design with a large angular shape design and radar absorbing materials. Designers also equipped with a quieter it’s five main propeller to enhance the stealth effect. Since 1983, Boeing and Sikorsky km for a joint venture development of the aircraft. At that time, the Army plans to buy more than 10 stealth helicopter, but this is a conservative estimate. By 2004, with the emergence of unmanned aerial vehicles and other helicopters, and after the Cold War, the decline in demand, coupled with the development of the program has spent $ 7 billion, and six projects through restructuring; Army aircraft the amount of pre-terminated the project.

RQ-170

the United States is the most mysterious of a UAV RQ-170, it’s the first photo of a magazine by the French disclosed . It was called “Beast of Kandahar,” the title, because it is the first time, found it Kandahar in Afghanistan. From the appearance point of view, it seems to be a stealth aircraft, despite its stealth ability is not completely understood. Air Force in December 2009 recognized the existence of RQ-170 project, the Air Force’s introduction shows that it is by Lockheed – Martin developed.

RQ-170 The reason why is because it is known to detect this – bin Laden’s hiding place in Pakistan, which like many bat-wing UAV escape Pakistan’s radar network, the border in Pakistan area reconnaissance. In this – Osama bin Laden to attack the residence of a few months before, the machine recorded the habitat of the bin Laden video. In the Seals to attack the residence of Osama bin Laden, the UAV is said on the ground over the attack on the video recording. Why to choose it for reconnaissance it? Of course, because of its stealth capabilities, as other unmanned reconnaissance aircraft to 达阿布巴托 before in Pakistan may have been found in the radar system.

“Airwolf”

RQ-170 is not the task of bin Laden in the attacks appeared only in the stealth fighter, nicknamed “Airwolf,” helicopters are The operation appeared. Joint Special Operations Command has stealth capabilities with two Army MH-60 “Blackhawk” helicopters, the Pakistani military has not been found in the case of the Seals sent to bin Laden’s residence. If not, there is a crash, the helicopter may still be a secret; the helicopter wreckage was exposed by the media big.

allegedly participated in the task of staff attempting to use hand grenades destroyed the wreckage to prevent his country to use reverse engineering copy machine. However, MH-60 “Blackhawk” helicopters can still provide the information. Photos show, it has a smooth appearance and substantial angular shape. Propeller shaft and its protective layer was covered, may be in order to increase efficiency and reduce noise. Soon after this event, Pakistan, China to engineers inspected the “Airwolf” the wreckage in order to improve China’s own stealth technology.

X-47B

present, the “Predator” and “Death” unmanned aerial vehicles in the United States is using unmanned aircraft. However, Northrop – Grumman is testing the X-47B unmanned aircraft will change this situation, making the UAV to take off and land at sea. Navy aircraft carrier deck for the upcoming X-47B’s landing test, which is not easy, especially in the absence of manipulating it, or remote pilot with the help of autonomous flight.

“the god of thunder and lightning”

if Theron’s fighter aircraft and combine what would result? The answer is “the god of thunder and lightning,” which is British Aerospace Systems (BAESystems), the British defense technology company Qinetiq (QinetiQ), Rolls-Royce (RollsRoyce) and the U.S. general aviation (GEAviation) together for the UK development of unmanned aircraft systems project. “God of Thunder” is a demonstrator of the project, the project aimed at developing a long-range stealth unmanned aircraft. Its name comes from the Celtic “god of thunder and lightning.” The aircraft took off from the UK, on ??the far against targets in Afghanistan. (Sri Lanka-year)

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