Grumman G 21 Goose Manuals

Grumman g 21 goose manuals

The Grumman G Goose is an amphibious flying boat designed by Grumman to serve as an eight-seat "commuter" aircraft for businessmen in the Long Island area.

Transport & Gliders

The Goose was Grumman's first monoplane to fly, its first twin-engined aircraft, and its first aircraft to enter commercial airline service. During hostilities, the Goose took on an increasing number of combat and training roles.

In , 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. 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.

Grumman g 21 goose manuals

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, 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 to go just about anywhere, and plans were made to market it as an amphibian airliner. A number of modifications were made for the Goose, but the most numerous are those by McKinnon Enterprises of Sandy, Oregon, which holds 21 supplemental type certificates STCs for modifying Gseries aircraft and which also manufactured four different conversions that were recertified under a separate FAA type certificate TC no.

It was approved under TC 4A24 on November 7, , and two examples were built in — The second McKinnon conversion was the model GD, which differed from the GC only by the insertion of a inch cm extension in the nose section of the aircraft in front of the cockpit, and inch cm extensions that were added to the horizontal stabilizers and elevators.

The extended nose of the GD was distinguishable by the addition of two new windows on each side, and it housed four additional passenger seats.

Only one GD was built and it was actually reconverted from the first GC. When later further converted to turbine engines, it was nicknamed "Turboprop Goose".


Because they also had many other McKinnon features installed on them using some of its STCs, these aircraft were later confused with similar but subsequent McKinnon turbine conversions and model GE aircraft, but they actually remained "Grumman GA" aircraft under TC no.

Only one example was ever actually built and recertified as a model GE, and it was, in fact, equipped with the more powerful PT6A engines. The GG combines all of the structural reinforcements and 12,lb gross weight of the earlier GC and D models, as well as their other features such as the "radar" nose, the "wraparound" windshield, retractable wingtip floats, and "picture" cabin windows, with the more powerful PT6A turbine engines and other minor details to produce the ultimate McKinnon Goose conversion.

However, as of , 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 a bar and small toilet installed.


In addition to being marketed to small air carriers, the G was also promoted as a military transport. In , the U. Army Air Corps purchased the type as the OA-9 later, in the war years, examples impressed from civilian ownership were designated the OAA.

Grumman g 21 goose manuals

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 was used for air-sea rescue duties by the Royal Air Force , which, in a common naming convention with all of its aircraft, designated the type as "Goose".

Grumman G-21 / JRF / OA Goose

After the war, the Goose found continued commercial use in locations from Alaska to Catalina and the Caribbean. A total of 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 [52]. From Wikipedia, the free encyclopedia. Redirected from Grumman Goose.

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Grumman G-21 Goose

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Grumman g 21 goose manuals

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Grumman g 21 goose manuals

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Grumman g 21 goose manuals

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Grumman g 21 goose manuals

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Grumman Goose

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