In this photograph, the JetStar is fitted with a model of a high-speed propeller. Three different designs were tested at NASA's Dryden Flight Research Facility in 1981-1982.
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In this photograph, the JetStar is fitted with a model of a high-speed propeller. Three different designs were tested at NASA’s Dryden Flight Research Facility in 1981-1982. Their swept-back blades were intended to increase the speed and fuel efficiency of turboprop aircraft. Speeds of Mach 0.8 were thought possible, while using 20 to 30 percent less fuel than standard jet engines.May 21, 1981NASA Photo / NASA photo› Jetstar Fact Sheet