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Overall specifications have varied somewhat, but the design has nuclear pulse engines at the rear, then cylinders for human habitation, then closer the front a large ball of fuel. Early versions were said to have 8 engines and later 24 nuclear rocket engines, which would be powered by the fusing of
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and telescopic observation of target star systems. The rest of the spacecraft would be attached behind the ball as a seamless metallic fuel tank. The proposed method of tank construction would be to expand a plastic balloon in space and coat it with metal.
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As long ago as 1964, Robert D. Enzmann of the
Raytheon Corporation proposed an interstellar ark driven by eight nuclear pulse rockets. The living quarters of the starship, habitable by 200 people but with room for growth,
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deuterium into helium-3. A common feature was that the crew area was replicated 3 times for redundancy, and a common core pillar ran the length of the spacecraft and through the center of each habitation unit.
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The spacecraft would be modular, and the main living area would be three identical 300 feet (91 m) wide and long cylindrical modules. The
Enzmann could function as an
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Enzmann envisionned his starships conducting missions in flotillas to provide for mutual support; hence, Enzmann starships are often represented in groups
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engines contained in a cylindrical section behind that ball with the crew quarters. The craft would be about 2,000 feet (600 m) long overall.
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engines. The spacecraft would be assembled in Earth orbit as part of a larger project preceded by
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Deep Space
Propulsion: A Roadmap to Interstellar Flight -- Chapter 11.4: The Enzmann Starship
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Messages from the stars: communication and contact with extraterrestrial life
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under test. A balloon built in space was to serve as
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Sources conflict about the projected speed, perhaps 30% of the
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The
Enzmann starship was detailed in the October 1973 issue of
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The ball of frozen deuterium would fuel thermonuclear-powered
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The
Enzmann Starship: History & Engineering Appraisal
395:"The Enzmann Starship: History and Engineering Appraisal"
75:, supporting a crew of 200 but with space for expansion.
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proposed in 1964 by Dr. Robert
Enzmann. A three million
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between people on Earth and on the spacecraft, such as
393:Crowl, Adam; Long, K; Obousy, R (2012-06-01).
399:Journal of the British Interplanetary Society
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16:Concept for a crewed interstellar spacecraft
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303:Long, K. F. (25 November 2011).
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84:, with a cover by space artist
218:“Slow Boat to Centauri” (1977)
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370:"A Program for Star Flight"
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210:"The Enzman Starship" JBIS
192:G. Harry Stine article in
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374:www.centauri-dreams.org
199:The design featured in
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261:Ridpath, Ian (1978).
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267:. Harper & Row.
129:relativistic effects
443:Interstellar travel
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229:Interstellar travel
65:interstellar probes
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196:in 1973
106:Syd Mead
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