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Tigerfish Aviation is an aerospace research and development company based in Norwood, South Australia.Since the late 1990s, the company has been developing a retractable pontoon system for the float plane industry, which has been patented as Retractable Amphibious Pontoon Technology or RAPT.
Norwood is a suburb of Adelaide, about 4 km east of the Adelaide city centre. The suburb is in the City of Norwood Payneham & St Peters, the oldest South Australian local government municipality, with a city population over 34,000.
The retractable float concept aims to reduce aerodynamic drag by folding the floats into a streamlined pannier under the fuselage of the aircraft. The reduction in drag improves performance of the aircraft and reduces its operating cost, such as fuel consumption. Reduction in drag also increases the range, payload, speed, and productivity of the aircraft. The drag reduction occurs due to the reduction of surface area exposed to the airstream and concealing the hydrodynamic features of the floats.It is designed as a retrofit, and is potentially capable of application to any existing aircraft. The technology has been applied on a one-sixth scale Cessna Caravan for concept-proving.
As of 2010, Dornier 228 NG is the first proposed aircraft to be retrofitted for the RAPT system, besides the small-scale Cessna. The retractable float system can be used in a wide range of aircraft including regional aircraft, utility aircraft, executive aircraft, military transports, VLJs, and UAVs. The University of Adelaide, with assistance of the South Australian Government, 1,420 pounds (640 kg) for a Dornier 228 NG variant.[ citation needed ]has performed CFD analysis and other studies on the DHC-6 Twin Otter showing that the RAPT system would result in a significant cost benefit. Unlike traditional floats, RAPT pontoons are made of lightweight composite materials, but suffer additional mass penalties due to the electric, hydraulic and structural systems required to retract the pontoons. Total mass penalty has been estimated at
The University of Adelaide is a public university located in Adelaide, South Australia. Established in 1874, it is the third-oldest university in Australia. The university's main campus is located on North Terrace in the Adelaide city centre, adjacent to the Art Gallery of South Australia, the South Australian Museum and the State Library of South Australia.
An amphibious aircraft or amphibian is an aircraft that can take off and land on both land and water. Fixed-wing amphibious aircraft are seaplanes that are equipped with retractable wheels, at the expense of extra weight and complexity, plus diminished range and fuel economy compared to planes designed for land or water only. Some amphibians are fitted with reinforced keels which act as skis, allowing them to land on snow or ice with their wheels up.
A seaplane is a powered fixed-wing aircraft capable of taking off and landing (alighting) on water. Seaplanes that can also take off and land on airfields are in a subclass called amphibious aircraft. Seaplanes and amphibians are usually divided into two categories based on their technological characteristics: floatplanes and flying boats; the latter are generally far larger and can carry far more. These aircraft were sometimes called hydroplanes, but currently this term applies instead to motor-powered watercraft that use the technique of hydrodynamic lift to skim the surface of water when running at speed.
STOL is an acronym for a short takeoff and landing aircraft, which have short runway requirements for takeoff and landing. Many STOL-designed aircraft also feature various arrangements for use on runways with harsh conditions. STOL aircraft, including those used in scheduled passenger airline operations, have also been operated from STOLport airfields which feature short runways.
A floatplane is a type of seaplane, with one or more slender pontoons mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, making the vehicle an amphibious aircraft. British usage is to call "floatplanes" "seaplanes" rather than use the term "seaplane" to refer to both floatplanes and flying boats.
The de Havilland Canada DHC-6 Twin Otter, currently marketed as the Viking Air DHC-6 Twin Otter, is a Canadian 19-passenger STOL utility aircraft developed by de Havilland Canada and currently produced by Viking Air. The aircraft's fixed tricycle undercarriage, STOL capabilities, twin turboprop engines and high rate of climb have made it a successful commuter passenger airliner as well as a cargo and medical evacuation aircraft. In addition, the Twin Otter has been popular with commercial skydiving operations, and is used by the United States Army Parachute Team and the United States Air Force's 98th Flying Training Squadron.
The de Havilland Canada DHC-3 Otter is a single-engined, high-wing, propeller-driven, short take-off and landing (STOL) aircraft developed by de Havilland Canada. It was conceived to be capable of performing the same roles as the earlier and highly successful Beaver, including as a bush plane, but is overall a larger aircraft.
A bush airplane is a general aviation aircraft used to provide both scheduled and unscheduled passenger and flight services to remote, undeveloped areas, such as the Canadian north or bush, Alaskan tundra, the African bush, Amazon rainforest or the Australian Outback. They are used where ground transportation infrastructure is inadequate or does not exist.
The Dornier Do 228 is a twin-turboprop STOL utility aircraft, manufactured by Dornier GmbH from 1981 until 1998. In 1983, Hindustan Aeronautics (HAL) bought a production licence and manufactured 125 aircraft. In Oberpfaffenhofen, Germany, 245 were built, and 125 in Kanpur, India. In July 2017, 63 aircraft were in airline service.
Air Tindi is an airline based in Yellowknife, Northwest Territories, Canada. It operates scheduled and on demand charter services. Its main base is Yellowknife Airport and the airline was previously owned by the Arychuk family. The name Tindi means "the big lake" or "Great Slave Lake" in the local native Tłı̨chǫ Yatiì language.
Yeti Airlines Pvt. Ltd. is an airline based in Kathmandu, Nepal. The airline was established in May 1998 and received its Air Operators Certificate on 17 August 1998. Yeti Airlines is the parent company of Tara Air. Together, the two airlines form the largest domestic flight operator in Nepal. Yeti Airlines operates a fleet of nine aircraft and offers domestic flights to ten destinations.
Corporate Air is an airline based in Billings, Montana, United States. It was established in 1981 and operates primarily domestic scheduled cargo services, Feeder service on behalf of FedEx Express, as well as the United States Postal Service. Its main base is Billings Logan International Airport.
Corporate Air is an airline based in Billings, Montana, United States. It has since ceased operations in its Manila, Philippines base. It was established in 1995 and operates airbridge and feeder services between Subic and Davao City, with stops in Manila and Cebu City on behalf of FedEx. It also operates scheduled passenger services. In the past, it flew passengers between Manila and Baguio. Its main base was Subic Bay International Airport. Corporate Air Inc. ceased all Philippine operations in 2008.
Tenzing–Hillary Airport, also known as Lukla Airport, is a small airport in the town of Lukla, in Khumbu, Solukhumbu District, Province No. 1, eastern Nepal. A program titled Most Extreme Airports, broadcast on The History Channel in 2010, rated the airport as the most dangerous airport in the world for over 20 years.
Viking Air Ltd. is a manufacturer of aircraft, as well as aircraft parts and systems, based in North Saanich, British Columbia, Canada. The company produces new versions of the DHC-6 Twin Otter, upgraded versions of the DHC-2 Beaver, spare parts for older de Havilland Canada aircraft, and components for Bell Helicopter Textron. Its President and CEO since at least May 2005 is David Curtis. The company is managed by Longview Aviation Capital. Longview Aviation is owned by Sherry Brydson, granddaughter of deceased newspaper magnate Roy Thomson and cousin of David Thomson, the largest family fortune in Canada.
8199400 Canada Inc. operating as Arctic Sunwest Charters was a charter airline based in Yellowknife, Northwest Territories, Canada. It operated passenger and cargo charter services in Canada's Arctic, with wheel, ski and float equipped aircraft. Its main base was Yellowknife Airport and also operated a float base on Great Slave Lake near the Yellowknife Water Aerodrome.
TALAIR was a Papua New Guinea airline founded in 1952. It ceased operations in 1993.
Golden West Airlines Flight 261, a De Havilland Twin Otter DHC-6, collided with a Cessna 150 (N11421), owned by CessnAir Aviation, Inc., near Whittier, California. The accident occurred on January 9, 1975 at approximately 4:07 p.m. PST, while the Sun was just 9 degrees above the western horizon, directly into the eyes of the pilots of GW flight 261.
Rapt or RAPT may refer to:
The Snowbird is a human-powered ornithopter that was built as a project of the University of Toronto Institute for Aerospace Studies (UTIAS). Snowbird was the first human-powered ornithopter to fly straight and level.
Honeywell Primus is a range of Electronic Flight Instrument System (EFIS) glass cockpits manufactured by Honeywell Aerospace. Each system is composed of multiple display units used as primary flight display and multi-function display.
The Cessna 408 SkyCourier is an American twin-turboprop, high-wing, utility aircraft under development by Cessna.