https://en.wikipedia.org/wiki/Grumman_G-21_Goose
The Grumman G-21 Goose is an amphibious aircraft designed by Grumman to serve as
an eight-seat "commuter" aircraft for businessmen in the Long Island area. The
its first aircraft to enter commercial airline service. During World War II, 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. The adaptable transport continued in postwar use.
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Commando Gone in 60 Seconds Quincy M.E. The Lost World (1960)
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, the Grumman Model G-21 was designed as a
light amphibious transport.
Role Transport amphibious aircraft
Manufacturer Grumman
First flight 1937
Primary users United States Navy
United States Army Air Forces
Royal Air Force
Royal Canadian Air Force
Number built 345
Unit cost US$62,180.00 for JRF-6B (1942)
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-21 was also promoted as a military transport. In 1938, the U.S. Army Air
Corps purchased the type as the OA-9
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
Specifications (JRF-5 Goose
General characteristics
Crew: one to three
Capacity: five to seven passengers
Length: 38 ft 6 in (11.74 m)
Wingspan: 49 ft 0 in (14.94 m)
Height: 16 ft 2 in (4.93 m)
Airfoil: Root: NACA 23015, Tip: NACA 23009
Empty weight: 5,425 lb (2,466 kg)
Loaded weight: 8,000 lb (3,636 kg)
Useful load: 2,575 lb (1,170 kg)
Max. takeoff weight: 8,000 lb (3,636 kg)
radials, 450 hp (340 kW) each
Performance
Maximum speed: 201 mph (175 knots, 324 km/h) at 5,000 ft (1,520 m)
Cruise speed: 191 mph (166 knots, 308 km/h) at 5,000 ft (1,520 m)
Range: 640 mi (557 nmi, 1,030 km)
Service ceiling: 21,300 ft (6,494 m)
Rate of climb: 1,100 ft/min (5.6 m/s)
Power/mass: 0.11 hp/lb (0.19 kW/kg)
Armament
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