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Defense Intelligence Reference Document Positron Aerospace Propulsion

Defense Intelligence Agency · 35 pages · text from the file's own layer

This unclassified Defense Intelligence Reference Document from the Defense Intelligence Agency is dated 2 March 2010. It was produced in FY 2009 under the Advanced Aerospace Weapon System Applications (AAWSA) Program. The report reviews work on using positrons as aerospace fuel. It covers air-breathing turbojet and ramjet engines, unmanned aircraft, missiles, single-stage reusable vehicles, positron rockets and a crewed Mars mission, along with how positrons could be produced and stored. It concludes that a first positron-powered flight around the globe could be possible within 10 years.

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“Masse”17 pages

  • p. 3 …Positron Mass .................................................................. 5 Figure 7. LOCAAS Turbojet Engine ......................................................................... 6 iii UNCLASSIFIED//F81it 8FFIIIAI!: 1!181! &••1…
  • p. 4 …Total Positron Requirement for SSRV With a Dry Mass of 60,500 kg ....... 10 Table 4…
  • p. 6 …Hence, when Ps self-annihilates, there is 100 percent conversion of mass into electromagnetic energy given…
  • p. 7 …5 At sea level for a fuel-air mass ratio of 0.068, it is 500…
  • p. 10 …1.00 Positron Mass (mg) ./V 1.50 Figure 6. UAV Range Versus Positron Mass (courtesy…
  • p. 12 …nonstop flights are possible. • Increase in structural mass allows more electronics/passenger amenities. RAMJET-ASSISTED MISSILE…
  • p. 13 …Improving payload mass requires reducing propellant and structural mass, both of which can be accomplished using…
  • p. 14 …GLOW for Chemical SSRV21 Vehicle Component Structure Thermal Protection Propulsion (4 engines) Electronics TOTAL DRY MASS…
  • p. 15 …24 The positron mass budget for a 60,500-kg dry mass for ascension to LEO…
  • p. 17 …First, a reduction in the engine mass for a given thrust is realized; second, there is…
  • p. 19 …lead-cartridge concepts show promise if the mass flow rate of the hydrogen propellant exceeds that…
  • p. 20 …flow-through system with LH2 at higher mass flow rates than LXe; and (d) One-fluid…
  • p. 21 …A separate Brayton-cycle positron energy conversion system provides power to the pellet mass driver and…
  • p. 22 …Comparison of Three Positron Propulsion Concepts for Mars Mission lsp Thrust e+ mass Special Notes Solid…
  • p. 24 …On board propellant requires an overall interplanetary system mass that prohibits use of any type of…
  • p. 25 …This gives significant mass savings or an equivalent reduction in Mars-to-Earth return time for…
  • p. 26 …Mars reference mission 53 , 54 considered payload masses of 60,000 kg for 2015 missions. This…
2 March 2010
ICOD: 1 December 2009
DIA-08-1003-002
UNCLASSIFIED/JFOll OFFIGl,\k W6&i OPlkY
Defense
Intelligence
Reference
Document
Acquisition Threat Support
Positron Aerospace Propulsion
UNCLASSIFIED/ JFOll OFFIGl1\k W61i 8Hl:Y

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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 35 pages are in the text index: search them above, or from the library's search.