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This Defense Intelligence Reference Document, dated 1 November 2010, was produced by the Defense Intelligence Agency under its Advanced Aerospace Weapon System Applications (AAWSA) Program. It surveys propulsion technologies that include chemical, ion, and nuclear fission rockets, fusion schemes, aneutronic fusion, and antimatter propulsion. It also covers radiation shielding and speculates on research needs over the next 30 years for missions from low Earth orbit to Mars, Jupiter, Saturn, and Alpha Centauri. The document concludes that aneutronic fusion promises to be an important mechanism for future space propulsion.
“Works”5 pages
UNCLASSIFIED//F8A 8FFI1il.t.k Wfili IH.k\f Appendix D: Relativistic Rocket Worksheet Estimate of the Performance of an lntersteller Relativistic Space Vehicle 1. Define the Specifications for the Rocket a. Rocket mass menoine := 14-ton C Assume the same mass as the !$$ l.Mth a crew of 6. 4 11\-ngine = 1.27 x 10 kg 11~uckct := 11\iayload + 01cnginc '11\ockct = 3.827 x 10 kg b. Specific impulse for the engine 'sr := 0.119-c 2. Define the Requirements for the Mission to Alpha Centauri a. Assume that the rocket will accelerate halfway to Alpha Centauri at 1 g (earth gravitational acceleration), and will decelerate during the I as! half of the trip at the same rate. a:=-g- HXJO D := 4.22·ly a = 9.807 X ](}- 3 ~ 2 s Distance to Proxima Centauri in lightyears. UNCLASSIFIED//PSR: err1e111tt USE 014[1 38
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 50 pages are in the text index: search them above, or from the library's search.