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Top : Science : Technology : Mechanical_Engineering : Propulsion : Aerospace
  		• Air
  		• Space
    See Also:
    Sites:
  		• A & E Engineering: Some advanced propulsion concepts described.
  		• Beginner's Guide to Propulsion: Tutorial slides on basic propulsion concepts.
  		• Chemical Propulsion Information Agency: Comprehensive site with technical resources, propulsion papers, meetings and events calendar.
  		• Compreactive Propeller (Airscrew).: It is suggested to use the internal space (internal channel) of a rotating blade as a centrifugal flow pump delivering pressurized air in a jet engine located on the blade tip.
  		• Journal of Propulsion and Power: Site contains a searchable Table of contents and information for authors and subscribers.
  		• Propulsion Directorate, Air Force Research Laboratory: Information on their research projects, and a propulsion primer
  		• Rocket Science Institute: Offers texts about rocket propulsion and propellants, from black powder pyrotechnics to NASA-scale systems.
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