Archive for July, 2008

US F-22 Raptor is new top gun

London: US F-22 Raptor, the world’s most technically advanced fighter jet, is one of the most fearsome killing machines ever.br /The crowd were in awe as it made its first European appearance at the Farnborough air show, twisting and turning with balletic grace. It carries a 20mm cannon, six Aim-120 air-to-air missiles and two Aim-9 heat-seeking missiles, making it the most lethal fighter plane.br /Us Air Force pilot Major Paul Moga, who flew the plane, said: “It’s a privilege. I feel honoured and blessed.”br /The Raptor even lives up to its name, sounding like a howling animal.br /Made from titanium and top secret composite materials, its engines have nozzles that can swivel round and its missiles are carried internally, making it the most agile fast jet ever.br /In fact, the F-22, made by Lockheed and Boeing, is so advanced that the firms are banned from selling it to other nations.br /Major David Krumm, who has also piloted the Raptor, added: “It flies better than anything I have ever flown.”br /The US Air Force has taken delivery of 119 F-22s, with a further 60 on order, The Mirror reported.br /F-22 travels twice as fat as sound and has a range of 2,000 miles. Sneaky smooth lines of raptor help it to evade radar. Its antennae, tanks and missiles are fitted internally. Its cost’s 71 million pound.br /Source: a href=”http://in.news.yahoo.com/139/20080721/882/twl-us-f-22-raptor-is-new-top-gun.html”Yahoo! News /a

Operation Opera – The Attack

a onblur=”try {parent.deselectBloggerImageGracefully();} catch(e) {}” href=”http://bp1.blogger.com/_RRbP6fpJWAc/SIEuRIfChSI/AAAAAAAAAmU/TDttHh7QO0A/s1600-h/map.jpg”img style=”margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 368px; height: 208px;” src=”http://bp1.blogger.com/_RRbP6fpJWAc/SIEuRIfChSI/AAAAAAAAAmU/TDttHh7QO0A/s320/map.jpg” alt=”" id=”BLOGGER_PHOTO_ID_5224507914596812066″ border=”0″ //aOperation Opera was carefully planned to minimize the loss of lives of any foreign workers and the late-afternoon attack was designed so as to provide the Israeli Combat Search and Rescue Team (CSAR) all night to search for any downed Israeli pilots.br /br /An Israeli Air Force flight of 8 F-16As (aircraft 107, 113, 118, 129, from 117 Squadron and 239, 240, 243 and 249 from 110 Squadron) was outfitted, each with two unguided Mark-84 2000-pound delay-action bombs, and external fuel tanks. A squadron of 6 F-15As was also assigned to the operation to provide fighter support for the F-16As.br /br /On June 7, 1981 at 15:55 local time (12:55 GMT) the plan was set in motion. The task force left Etzion Airbase, flying at 240 m unchallenged over Jordanian and Saudi airspace.br /br /On the initial flight southward, the planes coincidentally flew directly over King Hussein’s private yacht at 100 feet in elevation. Hussein recognized the Israeli markings and reportedly realized instantly what their mission was, and attempted unsuccessfully to alert the Iraqis.br /br /At 1,000 km into their flight, the operation was complicated by the F-16As external fuel tanks. The planes were so heavily loaded that the external tanks were exhausted while the task force was still en route to the Osirak facility. These tanks were designed to be jettisoned, but not to be jettisoned while the plane was still loaded with the Mark 84 bombs; there was a possibility that the tanks could become entangled in the weapon mounts once released. However, this did not occur, and the squadron of F-16As managed to safely jettison their empty external tanks over the Saudi desert.br /br /Upon reaching Iraqi airspace, the squadron split up, with two of the F-15s forming close escort to the F-16 squadron, and the remaining F-15s dispersing into Iraqi airspace as a diversion and ready back-up.br /br /The attack squadron descended to 30 m over the Iraqi desert, attempting to fly under the radar of the Iraqi defenses.br /br /At 18:35 local time (17:35 Israeli time/14:35 GMT), 20 km from the Osirak reactor complex, the F-16 formation climbed to 2,100 m and went into a 35-degree dive at 1,100 km/h, aimed at the reactor complex. At 1,100 m, the F-16s began releasing the Mark 84 bombs in pairs, at 5-second intervals. According to the Israeli reports, all sixteen weapons struck the reactor complex, although two apparently did not detonate. As the anti-aircraft defenses opened fire, the squadron climbed to an altitude of 12,200 m and started to return to Israel. According to Israeli reports, the Iraqi defenses were caught off guard, and were slow to react. In any case, the anti-aircraft defenses of the facility did not manage to damage any of the attacking squadron.br /br /Despite the fears of encountering Iraqi interceptors, the squadron remained unchallenged, and returned to Israeli airspace on the reciprocal route.

Reliance looks to NAL to make carbon fibre

Bangalore: Reliance Industries Ltd plans to source locally developed technology from state-owned National Aerospace Laboratories, or NAL, to make carbon fibre, a scarce, steel-like material used in building light aircraft.br /India’s largest private sector company by sales would make the carbon fibre at a 4,000-tonne plant in Vadodara, Gujarat, using technology developed at NAL, an arm of India’s biggest public research agency, the Council of Scientific and Industrial Research, people familiar with the development said.br /The people, who did not want to be named, would not disclose investment details because an agreement for technology transfer is yet to be signed. Questions sent to Reliance spokeswoman Sharmili Vashani on Thursday had not been answered until late Sunday.br /Carbon fibre, produced from polymers, is used to make composites that are as strong as steel, but nearly half its weight. These composites have a longer lifetime and are less prone to corrosion, and are used in products ranging from Formula One cars to pipes that carry petroleum products. It is also used in the manufacture of fighter planes, rockets and missiles.br /Restrictions exist on the import of the material. A global scarcity of carbon fibre and composites has resulted partly because of increased consumption by the world’s two largest passenger-plane makers, Boeing Co. and Airbus SAS, which use the lightweight material to build lighter and more fuel-efficient planes.br /Boeing has replaced aluminium alloy with carbon composites in half the structures used to build the B787 plane, compared to just 11% in older planes, Alan G. Miller, director of technology integration of the 787 for Boeing, said at an aerospace conference in Bangalore.br /“Some of the shortage is a timing question. There are plans worldwide to increase plant capacity,” Miller said on the sidelines of the conference last month.br /The aerospace market’s consumption of carbon fibre composites was estimated to be 7,260 tonnes in 2007 and is expected to grow fivefold to 35,800 tonnes by 2010, according to researcher Frost and Sullivan.br /“Composites have considerable potential in commercial aviation sectors with the largest end-users in this segment being business, light and very light aircraft,” Frost research analyst Balaji Srimoolanathan said in the report.br /Already in Vadodara, Kemrock Industries and Exports Ltd, an export-focused unit that makes fibre-reinforced plastic composites, is building a 400-tonne carbon fibre plant to open in August 2009, the first big unit in the country.br /The Rs200 crore plant also will make the composites using technology from NAL, and initially focus on composites for windmill blades and cars, which are less rigorous to make than the more complex aviation-grade carbon fibre.br /Carbon fibre sells for between Rs800 and Rs1,200 per kg, whereas the most common fibre, reinforced plastic composites, sells for Rs180-200.br /“Import availability is restricted. So, the demand (for composites) is not coming,” said Mahendra R. Patel, chief executive officer of Kemrock. “If it is available (locally), applications also will expand.”br /India’s public-funded aerospace companies such as NAL, the Indian Space Research Organisation (Isro) and Hindustan Aeronautics Ltd?(HAL), use composites extensively in rockets, the Tejas light combat aircraft, Dhruv advanced light helicopter and Saras multi-role passenger plane.br /The Tejas fighter has around 70% of composites for its weight, as against 30% for the F-22 Raptor and around 50% in the Joint Strike Fighter of the US. Tejas is the only fighter that uses composites in the centre fuselage. The lightweight composites in its workhorse rockets allow Isro to launch heavier satellites into orbit.br /Russia, among the world leaders in fighter planes, has involved India to build composites for better stealth features in the so-called fifth generation fighters being built by Sukhoi design bureau.br /Indian aerospace institutions have earned a reputation for mastering the carbon composite technology for aerospace applications, but India currently produces only 20 tonnes at a NAL unit in Bangalore.br /The bulk of the demand for the material in India, estimated to be around 1,200 tonnes a year, is met with imports from Japan and France, but the supplies have been irregular in recent times.br /In April 2007, Japan’s Toray Industries Inc., the world’s largest producer of carbon fibre, stopped supply of the material after India tested its nuclear-capable ballistic missile, Agni 3, with the capability to strike China. Toray cited concerns over potential “dual use” in both civil and military applications.br /Local production of carbon composites by Kemrock and subsequently by Reliance would reduce dependence on imports over the next few years, when production begins largely for Saras and a five-seater passenger plane designed jointly by NAL and Mahindra and Mahindra Ltd.br /“In three years, we should be able to have a good industrial base for these materials,” NAL director A.R. Upadhya predicted in June.

PAKDA a Russian Stealth bomber

The PAK DA (or PAK-DA), is a next generation strategic bomber which is being developed by Russia. It stands for Perspektivnyi Aviatsionnyi Kompleks Dalney Aviatsyi which means Future Air Complex for Strategic Air Forces. The PAK DA is going to be heavily based on Russia’s current supersonic bomber Tupolev Tu-160 and is expected to have it’s maiden flight by 2015.