Download e-book for kindle: A Vertical Empire: History of the British Rocketry Programme by C. N. Hill

By C. N. Hill

ISBN-10: 1848167954

ISBN-13: 9781848167957

ISBN-10: 1848167962

ISBN-13: 9781848167964

A Vertical Empire presents an outline of the British rocketry and area programme from the Nineteen Fifties to Seventies, detailing the Medium diversity Ballistic Missile Blue Streak and its conversion to a satellite tv for pc launcher as a part of the ecu Launcher improvement business enterprise (ELDO). This widely revised moment version contains fabric purely made to be had long ago ten years and the textual content is supplemented by means of quite a few images, sketches and records. The all-British satellite tv for pc Black Arrow is defined, in addition to the study rocket Black Knight, the Blue metal missile and the rocket powered interceptor airplane.

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Extra resources for A Vertical Empire: History of the British Rocketry Programme

Sample text

I. One way to define it is (thrust × burn time)/(total mass of fuel burnt). Another way is the thrust obtained from each lb (or kg) of fuel burned each second. I. would be quoted in Ns/kg – which turns out to be dimensionally equivalent to m/s. I. can also shown to be the same as the exhaust velocity of the gases from the combustion chamber. Furthermore, the final velocity of a rocket (in the absence of gravity, air resistance and so on) can be shown to be: vfinal = vexhaust × ln(mass at start/mass at end) Hence the greater the exhaust velocity, the greater the final velocity of the rocket (ignoring all the complications such as gravity, air resistance and so on).

They are hypergolic). The combination is often used in missiles which are left fuelled up on a long-term 27 28 A Vertical Empire basis, or in upper stages of satellite launchers, particularly when a restart capability is needed. Liquid hydrogen is the most energetic and effective fuel, although it suffers from two major drawbacks: it boils at −253 °C or 20 K, and has an extremely low density of 71 kg/m3 compared with 1,000 kg/m3 for water. Low density implies large tank volume and, as a consequence, extra weight.

It also cleared the way for a new Minister of Defence, Harold Watkinson, to cancel Blue Streak. Watkinson’s ministerial career was relatively short. It is quite likely that the fallout from the cancellation led to Sandys’ sideways move to Colonial Secretary, although this too was a post that would require a man not afraid to take unpopular decisions. As Aviation Minister he was succeeded by Peter Thorneycroft, who had previously resigned from the Macmillan Government as Chancellor over the level of government spending, and it was Thorneycroft who began the Anglo-French talks which later led to ELDO.

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A Vertical Empire: History of the British Rocketry Programme by C. N. Hill

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