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During takeoff, ground effect can cause the aircraft to "float" while below the recommended climb speed. The pilot can then fly just above the runway while the aircraft accelerates in ground effect until a safe climb speed is reached. [2] For rotorcraft, ground effect results in less drag on the rotor during hovering close to the ground. At ...
Ekranoplan A-90 Orlyonok. A ground-effect vehicle (GEV), also called a wing-in-ground-effect (WIGE or WIG), ground-effect craft/machine (GEM), wingship, flarecraft, surface effect vehicle or ekranoplan (Russian: экранопла́н – "screenglider"), is a vehicle that is able to move over the surface by gaining support from the reactions of the air against the surface of the earth or water.
The RFB X-114 Aerofoil Craft was an experimental ground-effect vehicle intended to work over water, with the ability to fly out of ground effect when required. It was the last of three such aircraft designed by Alexander Lippisch in the 1960s and early 1970s.
The design process for what became the Pelican began in early 2000, when designers in the Phantom Works division of Boeing started working on solutions for the United States Armed Forces objective of moving thousands of troops, weapons, military equipment, and provisions to a war or battle scene faster, [5] such as successfully deploying an Army brigade of 3,000 troops and 8,000 short tons ...
The following is a list of WIGE or 'wing-in-ground'-effect craft, also referred to as water-skimming wingships or, in Russia, 'ekranoplans'. An A-90 Orlyonok , a Soviet-era ground-effect plane Australia
Ground effect (cars), an effect that creates downforce, primarily in racing cars; Ground-effect vehicle, a vehicle which attains level flight near the surface of the Earth due to ground effect; Ground-effect train, an alternative to a magnetic levitation train, using ground effect in aircraft to prevent the vehicle from making contact with the ...
Data from Jane's All the World's Aircraft General characteristics Crew: One or two Length: 25 ft 0 in (7.62 m) Wingspan: 14 ft 0 in (4.27 m) Wing area: 110 sq ft (10 m 2) Empty weight: 370 lb (168 kg) Gross weight: 710 lb (322 kg) Powerplant: 1 × unknown, tractor configuration, 25 hp (19 kW) Propellers: fixed pitch Performance Maximum speed: 77 mph (124 km/h, 67 kn) in free flight, flown solo ...
DARPA launched the project in mid-2022, wanting a plane that could lift large, heavy loads by skimming the water in ground effect, and capable of operating at mid-altitudes of up to 10,000 feet (3,000 m). Utilizing the ground effect, flying at an altitude equal to 5% of the wingspan can deliver 2.3 times more efficient flight performance.