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Venik
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12.08.2002 19:45:04
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Re: Микроволновое и...
>Мое почтение!
Добрый день,
>Начинается век гравицап, гиперболоидов и гуманоидных роботов а вы тут все директивы Ставки и указы ВКП(б) мусолите... :)))
А как там обстоит дело с поглощением в атмосфере. Типа какая састь лазерного пучка (Watt) долетит до цели?
>Интересная статья от Джейнс:
>JANE'S DEFENCE WEEKLY - AUGUST 07, 2002
>US DoD push for laser, microwave weapons
>ANDREW KOCH JDW Bureau Chief
>Washington DC
>and NICK COOK JDW Aerospace Consultant
>London
>In its Fiscal Year 2004 Defence Planning Guidance, the US Department of Defense calls on the US Air Force (USAF) to plan for directed-energy (DE) weapons within a decade. Industry officials say the technology exists to support those plans.
>Mike Booen, vice president for directed-energy programmes at Raytheon, said that high-powered microwave (HPM) and laser weapons are "on the verge of moving from the science and technology phase into the tactical platform phase".
>Some of these concepts are already under development, according to industry and air force officials. George Muellner, president for Phantom Works, the research and development organisation of Boeing, said that concepts for a DE weapon - "probably a high-powered microwave" - are being developed for the future Block 30 upgrade to the X-45 unmanned combat air vehicle (UCAV). Under this concept, the HPM would be used to suppress enemy air defences, and could also be used to disable other electronic equipment such as command-and- control nodes. Noting that HPM weapon "technology is available and maturing", Muellner said: "The problem has been finding an effective way of aiming them," as well as protecting the carrier vehicle.
>HPMs "are several years more technically mature than solid-state lasers", Booen said, noting it is reasonable to expect field demonstrations in the next five years. He added that HPM technology is advancing and that "the power is there" for weapons-usable systems.
>Another concept being developed is the deployment of a high-powered solid-state laser on board the Lockheed Martin F-35 Joint Strike Fighter (JSF). Booen said that Raytheon has developed a compact packaging concept that will allow its solid-state laser to be fitted into the vertical take-off and landing (VTOL) lift-fan space aft of the JSF cockpit, as well as in the bomb-bay of a UCAV. The laser, notionally conceived as having 100kW of power, "will be lethal to some weapon systems" and allow the user "to do things you might have used certain munitions for".
>However, the fielding of weapons-capable solid-state lasers is still considered to be eight to 10 years away. One challenge of using a laser weapon from a fighter aircraft, either manned or unmanned, said Neil Kacena, deputy director of Lockheed Martin's Skunk Works, is to control the beam because of the boundary layer. "Can you control a beam and hit what you want to hit? Our initial studies say 'yes'," said Kacena, using adaptive optics, but the technology needs development, he added.
>Over the longer term, Booen said Raytheon expects to develop more powerful lasers that will allow the armed forces to replace high explosives with directed energy - initially deployed on aircraft but eventually to be carried on munitions themselves.
>However, the potential of these concepts could be effected by concerns about their legality under international law as inhumane weapons. A scientist familiar with the effects of HPM weapons described to Jane's Defence Weekly the potential outcome of an individual being struck with a 1MW HPM weapon, explaining: "All the fluid in their body cells would instantly vaporise into steam. It would happen so fast, you wouldn't even be aware of it. If, on the other hand, you were caught in the sidelobe of the beam, or even by a weak reflection of the main beam off a metal surface - which could easily happen in a city - you would probably suffer terrible burns as well as permanent brain damage."
>HPM weapons could also face other legal complications, particularly because of a prohibition on incendiary weapons.
>While one of the primary missions of a HPM weapon would be to attack otherwise impenetrable deeply buried targets, other missions are also being considered.
>AFRL bid to demonstrate solid-state laser
>To turn these future concepts into reality, the US Air Force Research Laboratory (AFRL) at Kirtland Air Force Base, New Mexico, is preparing to start a new $25 million to $50 million programme to develop a high- powered solid-state laser with good beam quality.
>To be conducted by the AFRL's Directed Energy Division, the programme will seek to demonstrate a 25kW laser that could be later scaled to 100kW, explained Lt Col LeAnn Brasure, head of the lab's high-power solid- state laser branch. That goal, however, "is closer to 10 years" from now, Col Brasure said.
>Initially, the programme is intended to demonstrate a 25kW solid-state laser in the laboratory, although a year-long third phase to package a fieldable variant of it for test and evaluation purposes is possible. When the initial two-year programme is completed, the air force will conduct another competition to develop and build a larger 100kW version, Col Brasure said.
>Several contractors are expected to bid on the effort, including Raytheon, which has been developing a 25kW solid-state laser architecture based on the Airborne Laser tracker/illuminator technology, said Mike Booen, the company's vice president for directed-energy programmes.
>Col Brasure noted that in developing a system to be carried on an aircraft, the ability to conduct thermal management and cool the system is a key for both controlling the infra-red signature as well as gaining efficient power usage.
>
>The Air Force Research Laboratory is to develop a high-powered solid-state laser with good beam quality
>(Source: Air Force Research Laboratory)
>
>Boeing is developing DE concepts for the X-45 UCAV
>(Source: Boeing/Jane's)
>
>Raytheon expects field demonstrations of high-powered microwave systems in the next five years
>(Source: Raytheon)
>С уважением, Venik