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37-533: Building on the success of the Goose and Widgeon , Grumman Aircraft developed larger G-73 Mallard for commercial use. Retaining many of the features of the smaller aircraft, such as twin radial engines, high wings with underwing floats, retractable landing gear and a large straight tail, the company built 59 Mallards between 1946 and 1951. Unlike the smaller aircraft, the Mallard featured tricycle gear , stressed skin,

74-671: A Mallard, which he often flew to Killarney. another Mallard was purchased in the early 1950s by the Aga Khan . The Toronto Globe & Mail newspaper owned one for use as a "flying newsroom". The Royal Egyptian Air Force used a Mallard as part of their Royal Flight; it was reportedly King Farouk 's favourite aircraft. The Mallard received a new lease of life in the 1970s when a number of airframes were refitted by Frakes Aviation with Pratt & Whitney Canada PT6A turbines and upgraded for 17 passengers, to become "Turbo Mallards". Today, through attrition, only 32 Mallards remain registered in

111-622: A bar and small toilet installed. In addition to being marketed to small air carriers, the G-21 was also promoted as a military transport. In 1938, the U.S. Army Air Corps purchased the type as the OA-9 (later, in the war years, examples impressed from civilian ownership were designated the OA-13A ). The most numerous of the military versions were the United States Navy variants, designated

148-507: A conventional land-based aircraft). However, in cases where this is not practical, amphibious floatplanes, such as the amphibious version of the DHC Otter , incorporate retractable wheels within their floats. Some amphibians are fitted with reinforced keels which act as skis, allowing them to land on snow or ice with their wheels up. Many amphibian aircraft are of the flying boat type. These aircraft, and those designed as floatplanes with

185-441: A conventional undercarriage. These are not built to take the impact of the aircraft landing on them. An amphibian can leave the water without anyone getting in the water to attach beaching wheels (or even having to have any handy), yet a fully functional undercarriage is heavy and impacts the aircraft's performance, and is not required in all cases, so an aircraft may be designed to carry its own. An occasional problem with amphibians

222-484: A life extension program. Chalk's Ocean Airways purchased Mallard N1208 from the Fruehauf Corporation and later acquired several other examples of the aircraft. The type received much attention after a Turbo Mallard, operating as Chalk's Ocean Airways Flight 101, crashed after takeoff from Miami Harbor on December 19, 2005, bound for Bimini, Bahamas . Eighteen passengers and two crew perished when

259-681: A longer range than comparable helicopters, and can achieve nearly the range of land-based aircraft, because an airplane's wing is more efficient than a helicopter's lifting rotor. This makes amphibious aircraft, such as the Grumman Albatross and the Shin Meiwa US-2 , useful for long-range air–sea rescue tasks. In addition, amphibious aircraft are particularly useful as bush planes that can engage in light transport in remote areas. In these areas, they often have to operate not only from airstrips, but from lakes and rivers as well. In

296-571: A runway. A common solution is to make them retractable, like those found on the Consolidated Catalina ; however, these are even heavier than fixed floats. Some aircraft may have the tip floats removed for extended use from land. Other amphibians, such as the Dornier Seastar , use stub wings, called sponsons , mounted with their own lower surfaces nearly even with the ventral "boat-hull"-shaped fuselage surface. This can provide

333-486: A single main float under the fuselage centerline (such as the Loening OL and Grumman J2F ), require outrigger floats to provide lateral stability so as to avoid dipping a wingtip, which can destroy an aircraft if it happens at speed, or can cause the wingtip to fill with water and sink if stationary. While these impose weight and drag, amphibious aircraft also face the possibility of these getting hit when operating from

370-543: A two-step hull and wingtip fuel tanks. The Mallard prototype first flew on 30 April 1946, with the first production aircraft entering service in September of that year. While the Mallard was designed for regional airline operations with two pilots and ten passengers, especially aimed at harbor-based, city-to-city hops on the eastern seaboard, postwar surplus aircraft sales and the availability of smaller airports limited market potential. A number of smaller air carriers did use

407-535: A variety of roles. However, like the pure flying boat, they were made obsolete by helicopters which could operate in sea conditions far beyond what the best seaplane could manage. Development of amphibians was not limited to the United Kingdom and the United States. In any case, few designs saw more than limited service, as there was a widespread preference for pure flying boats and floatplanes, due to

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444-575: Is an aircraft that can take off and land on both solid ground and water. These aircraft are typically fixed-wing , though amphibious helicopters do exist as well. Fixed-wing amphibious aircraft are seaplanes ( flying boats and floatplanes ) which are equipped with retractable wheels , at the expense of extra weight and complexity, plus diminished range and fuel economy compared with planes designed specifically for land-only or water-only operation. Floatplanes often have floats that are interchangeable with wheeled landing gear (thereby producing

481-486: Is with ensuring that the wheels are in the correct position for landing. In normal operation, the pilot uses a checklist, verifying each item. Since amphibians can land with them up or down though, the pilot must take extra care to ensure that they are correct for the chosen landing place. Landing wheels-up on land may damage the keel (unless done on wet grass, a technique occasionally used by pilots of pure flying boats), while landing wheels-down on water will almost always flip

518-406: The Consolidated Catalina (named for Santa Catalina Island off the coast of southern California, whose resort was popularized partly by the use of amphibians in the 1930s, including Sikorskys and Douglas Dolphins ) was redeveloped from being a pure flying boat into an amphibian during the war. After the war, the United States military ordered hundreds of the Grumman Albatross and its variants for

555-736: The JRF . The amphibious aircraft was also adopted by the Coast Guard and, during World War II, served with the Royal Canadian Air Force in the transport, reconnaissance, rescue, and training roles. The G-21 was used for air-sea rescue duties by the Fleet Air Arm , who assigned the name Goose. A single aircraft was used briefly by No. 1 Air Ambulance Unit, Royal Australian Air Force in the Mediterranean.[21] After

592-565: The United Kingdom , traditionally a maritime nation, a large number of amphibians were built between the wars, starting from 1918 with the Vickers Viking and the early 1920s Supermarine Seagull , and were used for exploration and military duties, including search and rescue, artillery spotting and anti-submarine patrol. These evolved throughout the interwar period to culminate in the post–World War II Supermarine Seagull , which

629-635: The company began operations in 1917. An original radial-engine Mallard, registration VH-CQA, crashed into the Swan River in Perth, Western Australia , on 26 January, 2017, during Australia Day celebrations, killing both the pilot , Peter Lynch , and his passenger. The cause of the accident was listed as pilot error and poor procedures on the part of the CASA and the City of Perth. Data from Jane's All

666-613: The Goose became an effective transport for the US military (including the United States Coast Guard ), as well as serving with many other air forces. During hostilities, the Goose took on an increasing number of combat and training roles. In 1936, a group of wealthy residents of Long Island, including E. Roland Harriman , approached Grumman and commissioned an aircraft that they could use to fly to New York City. In response,

703-538: The Goose, but the most numerous are those by McKinnon Enterprises of Sandy, Oregon, which holds 21 supplemental type certificates (STCs) for modifying G-21-series aircraft and which also manufactured four different conversions that were recertified under a separate FAA type certificate as brand-new "McKinnon" airplanes. The first was the McKinnon model G-21C which involved replacing the original R-985 radial engines with four Lycoming GSO-480-B2D6 piston engines . It

740-471: The Grumman Model G-21 was designed as a light amphibious transport. Grumman produced a high-wing monoplane of almost all-metal construction—the trailing half of the main wing and all of the flight control surfaces except for the flaps were fabric-covered. It was powered by two 450 horsepower (340 kW) Pratt & Whitney R-985 Wasp Junior nine-cylinder, air-cooled, radial engines mounted on

777-543: The Mallard in its intended role, notably Tahiti-Hawaii Airlines and Pacific Western Airlines (Canada). However, most of the 59 Mallards delivered were for corporate use. A prominent user in the United States was Roy Fruehauf and the Fruehauf Trailer Corporation . Fruehauf owned and operated a fishing camp, Killarney Lodge at Georgian Bay , Canada, and ferried customers there from Detroit. Another Detroiter, William Packer of General Motors, also owned

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814-480: The United States. Many of the rest are in use around the globe. A similar program has been undertaken by Paspaley Pearling in combination with Aeronautical Engineers Australia to fit new engines and modernize its Mallard fleet, which is used to support its pearling operations in Northern Australia. The fleet has been extensively rebuilt and also refitted with PT6A turbines, and is currently undergoing

851-644: The World's Aircraft 1948 General characteristics Performance Related development Aircraft of comparable role, configuration, and era Related lists Grumman Goose The Grumman G-21 Goose is an amphibious flying boat designed by Grumman to serve as an eight-seat "commuter" aircraft for businessmen in the Long Island area. The Goose was Grumman's first monoplane to fly, its first twin-engined aircraft, and its first aircraft to enter commercial airline service. During World War II ,

888-426: The aircraft upside down, causing substantial damage. Amphibious aircraft are heavier and slower, more complex and more expensive to purchase and operate than comparable landplanes. However, they are also more versatile. Even though they cannot hover or land vertically, they compete favorably with helicopters for some jobs and can do so at a significantly lower cost. Amphibious aircraft can also be much faster and have

925-547: The demand is too small to justify the costs of development, with the Volmer Sportsman being a popular choice among the many offerings. With the increased availability of airstrips in remote communities, fewer amphibious aircraft are manufactured today than in the past, although a handful of amphibious aircraft are still produced, such as the Bombardier 415 , ICON A5 , and the amphibious-float–equipped version of

962-519: The first Italian aircraft to fly. While most were not amphibians, quite a few were, including the Savoia-Marchetti S.56 A and the Piaggio P.136 . Amphibious aircraft have been particularly useful in the unforgiving terrain of Alaska and northern Canada , where many remain in civilian service, providing remote communities with vital links to the outside world. The Canadian Vickers Vedette

999-543: The larger flying boats could not go, and helping to popularize amphibians in the US. The Grumman Corporation, latecomers to the game, introduced a pair of light utility amphibious aircraft – the Goose and the Widgeon – during the late 1930s for the civilian market. However, their military potential could not be ignored, and many were ordered by the US Armed forces and their allies during World War II. Not coincidentally,

1036-524: The leading edges of the wings. The deep fuselage served also as a hull and was equipped with hand-cranked retractable landing gear. First flight of the prototype took place on May 29, 1937. The fuselage also proved versatile, as it provided generous interior space that allowed fitting for either a transport or luxury airliner role. Having an amphibious configuration also allowed the G-21 to go just about anywhere, and plans were made to market it as an amphibian airliner. A number of modifications were made for

1073-482: The more remote locations during the summer months when the only areas suitable for landing are the waterways. Despite the gains of amphibious floats, small flying-boat amphibians continued to be developed into the 1960s, with the Republic Seabee and Lake LA-4 series proving popular, though neither was a commercial success due to factors beyond their makers' control. Many today are homebuilts, by necessity as

1110-535: The needed stability, while floatplane amphibians usually avoid the problem by dividing their buoyancy requirements between two floats, much like a catamaran . Some non-amphibious seaplanes may be mistaken for amphibians (such as the Shin Meiwa PS-1 ) which carry their own beaching gear. Usually, this is a wheeled dolly or temporary set of wheels used to move a flying boat or floatplane from the water and allow it to be moved around on land. It can also appear as

1147-555: The original PT6A-27 engines, and the airframe systems and especially the avionics (aviation electronics – i.e. radios and navigation systems) would have been updated with state-of-the-art "glass panel" instrumentation and cockpit displays. However, as of 2009, Antilles Seaplanes' manufacturing center has been foreclosed and sold at auction. The fate of new Goose production is currently unknown. Envisioned as corporate or private flying yachts for Manhattan millionaires, initial production models normally carried two to three passengers and had

Grumman G-73 Mallard - Misplaced Pages Continue

1184-454: The right wing separated from the fuselage of the 58-year-old aircraft. The cause of the accident was determined by the subsequent investigation to be undetected cracks and/or corrosion in the wing spar . Prior to 2005, Chalk's Ocean Airways had an exemplary safety record operating Mallards for many years between Florida and the Bahamas , having never had a passenger fatality since

1221-689: The war, the Goose found continued commercial use in locations from Alaska to Catalina and the Caribbean . A total of 345 were built, with about 30 known to still be airworthy today (although around 60 are still on various civil registries, many of them are known to have crashed or been otherwise destroyed), most being in private ownership, some of them operating in modified forms. Data from United States Navy Aircraft since 1911 General characteristics Performance Armament Related development Related lists Amphibious aircraft An amphibious aircraft , or amphibian ,

1258-623: The weight penalty the undercarriage imposed. Russia also developed a number of important flying boats, including the widely used pre-war Shavrov Sh-2 utility flying boat, and postwar the Beriev Be-12 anti-submarine and maritime patrol amphibian. Development of amphibians continues in Russia with the jet-engined Beriev Be-200 . Italy, bordering the Mediterranean and Adriatic , has had a long history of waterborne aircraft, going back to

1295-504: Was approved under TC 4A24 on November 7, 1958, and two examples were converted in 1958–1959. In November 2007, Antilles Seaplanes of Gibsonville, North Carolina , announced it was restarting production of the turbine-powered McKinnon G-21G Turbo Goose variant, now identified as the Antilles G-21G Super Goose. Pratt & Whitney Canada PT6A-34 turboprops flat-rated to 680 shp (510 kW) would have replaced

1332-564: Was developed for forestry patrol in remote areas; a job that previously was done by canoe and took weeks could be accomplished in hours, revolutionizing forestry conservation. Although successful, flying-boat amphibians like the Vedette ultimately proved less versatile than floatplane amphibians and are no longer as common as they once were. Amphibious floats that could be attached to any aircraft were developed, turning any aircraft into an amphibian, and these continue to be essential for getting into

1369-568: Was to have replaced the wartime Walrus and the Sea Otter but was overtaken by advances in helicopters . From the mid-1920s to the late 1930s in the United States , Sikorsky produced an extensive family of amphibians (the S-34 , S-36 , S-38 , S-39 , S-41 , S-43 ) that were widely used for exploration and as airliners around the globe, helping pioneer many overseas air routes where

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