Luggage can be secured firmly with a spring-loaded four-point harness, as used in helicopters.

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It comes with a new four-point harness to keep the helmet more stable when night vision equipment is fitted to it.

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You wear a five-point harness, and the controls are a bit like a powerboat: you control the throttle with one hand, pitch with the other.

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The turning point was probably the fiasco of the Millennium Dome, which was meant to harness the best in British design to provide a national showcase but which turned into a loss-making embarrassment.

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