A partial list of established engine manufacturers and their websites, this list is intended to help teams preparing for the General Aviation Technology Challenge. Note: This list does not provide nor imply any warranty that these manufacturers have suitable engines or are willing to provide them. Teams are entirely on their own to pursue choosing and acquiring an engine that suits their performance needs, budget, and safety concerns.
From AIAA's Aircraft Systems Meeting Aug 4 1980 in St. Louis. A definitive paper on vehicular efficiency, draws upon Nobel Winner von Karman's work and is source of author's concept of Carson Speed, the most efficient speed for cruise flight. The landmark paper in flight efficiency.
An authoritative 8-page white paper on alternative fuels for use in aviation recently created by Boeing and NASA. The report cites many possible fuels, but concludes that algae biofuel is the "most attractive" alternative for mid-term sustainable mobility. Anyone interested in aviation's future in the face of concerns about Greenhouse Gas emissions and dwindling oil supplies, along with our need for a more distributed air transportation system, should read this paper.