About half the rockets suffer some kind of catastrophic failure in the air, usually when a nose cone fails to separate properly or the parachute doesn't deploy.
Their final design of the QSST jet is reminiscent of Concorde in its delta wing shape, but with a number of unique features, including an "inverted V-tail" and tailored nose cone.
That's partly the fault of the government, which prohibits amateurs from using explosives powerful enough to blast the nose cone free when the rocket is whistling through the air at supersonic speeds.
Japanese companies (such as Mitsubishi Heavy) are working on a so-called clamshell nose cone that is supposed to increase reliability by opening outside the atmosphere and reducing the number of maneuvers required to hit an incoming missile.
Japanese companies (such as Mitsubishi Heavy) are working on a so-called clamshell nose cone that is supposed to increase reliability by opening like a clamshell outside the atmosphere and reducing the number of maneuvers required to hit an incoming missile.
Meanwhile documents turned up that showed design work to fit a nuclear-weapon-sized object into the nose-cone of a Shahab missile but Iran dismissed them as forgeries.
This includes tests of high-explosive triggers useful for nuclear weapons, and the redesign of a missile nose-cone to take what looks like a nuclear warhead.
America, meanwhile, has again been showing around documents that purport to be Iranian design work on a missile nose-cone of a sort that that could carry a nuclear warhead.
The Red Bull team, led by team principal Christian Horner, looked at their screens in horror as Vettel careered off the track while Webber, who also flew off, was forced to come into the pits to have his damaged nose-cone replaced.
This makes it hard, for instance, to compare real-time video images (from a camera in the nose-cone of a missile, for example) with a set of several thousand targets (pictures of enemy aircraft, say), because all the targets have to be tested within a thirtieth of a second, the duration of a single frame of video.
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