Importance R&D on alternative types of aviation fuel has been enlivened for the recent decade as the aviation laws become more stringent and economies search for new escapes from energy dependence on oil exporting countries. Objectives The research analyzes promising trends in innovative development of the aircraft industry and summarizes publicly available results of international researches into increased energy efficiency and alternative types of aviation fuel. Methods The research relies upon methods of bibliographic, comparative and statistical analysis, and multiple case studies. The data set is made up of reports of the International Civil Aviation Organization, International Air Transport Association, International Council on Clean Transportation, Air Transport Action Group, final survey reports of the Seventh Framework Programme, and scientific proceedings. Results Specimens produced through the Fischer–Tropsch synthesis and biofuel from hydrotreating of oil crops are the most elaborated substitutes of conventional aviation fuel. European and U.S. projects for the use of liquefied hydrogen undergo laboratory tests. Researches into some or full substitution of conventional fuel with electricity propulsion are at the stage of conceptual modeling. The findings can be used to outline and adjust governmental programs for encouraging R&D in aircraft engineering.
Keywords: alternative aviation fuel, biofuel, liquefied hydrogen fuel, polluting emissions
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