The Elliot's guidance system was plagued by accuracy problems delaying test flights, which added to the growing problems. The short range of the missile meant that the V bombers were still vulnerable to enemy SAM's. [4]:349–351 With no effective long-range weapon the original Blue Steel served on after a crash programme of minor modifications to permit a low-level launch at 1,000 ft (300 m), even though its usefulness in a hot war was likely limited. A replacement for Blue Steel, the Mark 2, was planned with increased range and a ramjet engine, but was cancelled in 1960 to minimise delays to the Mk.1. There would have to be a balance between the size of the warhead (Orange Herald or Green Bamboo as developed by the Atomic Weapons Research Establishment (AWRE) and the need for it to be carried by any of the three V-bomber types in use, and that it should be able to reach Mach 3. In addition, the pilots of the Avro Vulcan and Handley Page Victor bombers could tie their systems into those of the missile and make use of the guidance system to help plot their own flight plan, since the unit in the missile was more advanced than that in the aircraft. Avro Blue Steel nuclear missile (front) at the Midland Air Museum[2], Avro Blue Steel missile (side view) at the Midland Air Museum behind the wing of an Avro Vulcan bomber, Rear view of Blue Steel missile at RAF Cosford aerospace museum, showing the twin-chamber "Stentor" rocket motor. To speed the trials at Woomera, the test rounds were flown there by Victors and Vulcans in Operation Blue Ranger. (The Vulcan had a much higher ground clearance, and ultimately proved a better platform). As it turned out, neither of the originally-proposed UK-designed warheads were actually fitted, being superseded by Red Snow, an Anglicised variant of the U.S. W-28 thermonuclear warhead of 1.1 Mt yield. Elliots guidance system was plagued by accuracy problems delaying test flights. The UK sought to acquire the much longer-ranged United States Air Force AGM-48 Skybolt air-launched ballistic missile, and was greatly frustrated when that weapon was cancelled in late 1962. Over the target the engine would cut out and the missile would free-fall before detonating its warhead as an air burst. Once close to the target, the second chamber of the engine (6,000 lb) would accelerate the missile to Mach 3. On launch the rocket engine's first chamber developing 24,000 lbf (110 kN) thrust would power the missile along a predetermined course to the target at around Mach 1.5. A stop-gap weapon (the WE.177B) was quickly produced to extend the life of the V-bomber force in the strategic role until the Polaris missile was ready. The ultimate Blue Steel would be a 900 nmi (1,700 km) range weapon that could be launched by the supersonic Avro 730 under development. With Elliot's working on the guidance system Armstrong Siddeley would develop the liquid fuel engine. Blue Steel finally entered service in February 1963, being carried by Vulcans and Victors, although its limitations were already apparent. The large girth of Blue Steel was determined by the 45 inches (1.1 m) implosion sphere diameter of Green Bamboo. Elliots guidance system was plagued by accuracy problems delaying test flights. The short range of the missile meant that the V bombers were still vulnerable to enemy Surface-to-air missiles. Avro Blue Steel; Sur le forum… Il n'y a pas (encore) de sujet dédié Mais vous pouvez bien sûr en créer un nouveau sur le forum. Blue Steel required up to seven hours of launch preparation, and was highly unreliable. As it turned out, neither of the originally-proposed UK-designed warheads were actually fitted, being superseded by Red Snow, an Anglicized variant of the U.S. W-28 thermonuclear warhead of 1.1 Mt yield. There would have to be a balance between the size of the warhead, the need for it to be carried by any of the three V-bomber types in use, and that it should be able to reach Mach 3. This system allowed the missile to strike within 100 metres of its designated target. People of the American Civil War by state, Articles with dead external links from November 2014, Articles incorporating text from Wikipedia, Cold War air-to-surface missiles of the United Kingdom, http://www.midlandairmuseum.co.uk/aircraft.php, http://www.skomer.u-net.com/projects/bluesteel.htm, http://www.globalsecurity.org/wmd/world/uk/blue_steel.htm, List of codenames used for projects (Rainbow Codes), https://military.wikia.org/wiki/Blue_Steel_(missile)?oldid=4805733. The missile was fitted with a state-of-the-art inertial navigation unit. The short range of the missile meant that the V-bombers were still vulnerable to enemy surface-to-air missiles. d9pouces il y a 3 semaines, 5 jours : c'était fait pour ! The missiles were prepared at the Weapons Research Establishment near Salisbury South Australia, and flown to be launched at the Woomera range from RAAF Edinburgh. L'Avro 698 Vulcan B.2 est un bombardier stratégique qui a été utilisé par la Royal Air Force de 1953 à 1984. Avec le Handley Page Victor et le Vickers Valiant, il faisait partie du trio des V bombers dont le Royaume-Uni lança le développement en 1947 pour le Royal Air Force Bomber Command. The fuel was a considerable operational problem, because fuelling the missile before launch took nearly half an hour, and was quite hazardous. The answer was for a rocket-powered, supersonic missile capable of carrying a large nuclear (or projected thermonuclear) warhead with a range of at least 50 mi (80 km). They were told to limit themselves to the specification of OR.1132. Megan Turner a toujours rêvé de porter l'uniforme de la police new-yorkaise. 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