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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.
“Anderson”1 page
UNCLASSIFIED/ }F81il 8FFI1il.t.k Wfili &,.kY 3. Compute the Rocket Per1ormance 39 a. Time required to reach Proxima Centauri in earth time (inertial reference frame) and in rocket time .. t •-? earth -- -· b. Peak velocity. tcaith = l27.903yr trocket = 127.81 yr 7tn vmidway = 1.975 x rn -s Vmidway --~ =6.587% C c. Compute the required kinetic energy that must be supplied by the fuel. y y ~ UXl2 'KE:= 2·11\ocket'c-·(y - I) Lorentz factor at the midwa.y point (peak velocity). ,oKE = 1.497 x 10- J UNCLASSIFIED/ 1'1"91l 91"1"1@111it 1!1!11!! 8HLV
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 50 pages are in the text index: search them above, or from the library's search.