Tabulation of selected data indicating potential for certificated helicopter services in major metropolitan areas of United States; consideration of costs, revenue and subsidy; importance of helicopters in inter-airport transfers; qualities of turbine transport; forecast for 1965 and 1970.
Future of hummingbird
Shell Aviation News
Shell Aviation News ; n 274
1961
4 pages
Aufsatz (Zeitschrift)
Englisch
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