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One of the earliest engines that resembled the propfan concept was the 4,710 pounds-force (21.0 kilonewtons) Metrovick F.5, which featured twin contra-rotating fans—14 blades in the fore (front) fan and 12 blades in the aft (back) fan—at the rear of the engine and was first run in 1946.
Avian Gyroplane with ducted pusher prop (but no tail-boom) Ducted fan on an Air Cushion Landing Craft. Ducted fans are favored in VTOL aircraft such as the Lockheed Martin F-35 Lightning II, and other low-speed designs such as hovercraft for their higher thrust-to-weight ratio.
The General Electric GE36 was an experimental aircraft engine, a hybrid between a turbofan and a turboprop, known as an unducted fan (UDF) or propfan.The GE36 was developed by General Electric Aircraft Engines, [3] with its CFM International equal partner Snecma taking a 35 percent share of development. [4]
The Pratt & Whitney/Allison 578-DX was an experimental aircraft engine, a hybrid between a turbofan and a turboprop known as a propfan.The engine was designed in the 1980s to power proposed propfan aircraft such as the Boeing 7J7 and the MD-91 and MD-92 derivatives of the McDonnell Douglas MD-80.
A true Star Wars fan recently scored big at Propstore’s latest auction, snagging Obi-Wan Kenobi’s original lightsaber prop from “The Phantom Menace” for a whopping $125,000.
Goat-hide and horse-hair Hausa fly-whisk, from near Maradi, Niger, early 1960s, 28 inches (71 cm). A fly-whisk (or fly-swish) [1] is a tool that is used to swat flies. A similar device is used as a hand fan in hot tropical climates, sometimes as part of regalia, and is called a chowrie, chāmara, or prakirnaka in South Asia and Tibet.
Handheld Brise fan from 1800. A handheld fan, or simply hand fan, is a broad, flat surface that is waved back-and-forth to create an airflow. Generally, purpose-made handheld fans are folding fans, which are shaped like a sector of a circle and made of a thin material (such as paper or feathers) mounted on slats which revolve around a pivot so that it can be closed when not in use.
The No. Clemson Tigers kept on rolling on Saturday night, blowing out the Miami Hurricanes in a primetime game on ABC. Clemson beat Miami, 42-17, to stay undefeated.
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