Journals

Conferences

Open Access Articles- Top Results for Grumman G-73 Mallard

Grumman G-73 Mallard

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.- #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect. colspan="2" align="center" #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.300px </div> #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.- #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.colspan="2" style="border-bottom: 1px solid #aaa;text-align:center;" #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.Grumman G-73 Mallard of Pearl Aviation landing at Darwin Airport (2010) #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-
G-73 Mallard
Role

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect. Amphibious airliner #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-

Manufacturer

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect. Grumman #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-


First flight

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect. 30 April 1946 #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-


Status

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect. Retired #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-

Primary user

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect. Chalk's Ocean Airways #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-

Produced

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect. 1946-1951 #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-

Number built

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect. 59 #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-

Unit cost #REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.
$115,000
$4.0 million for turbine powered G-73T

#REDIRECTmw:Help:Magic words#Other
This page is a soft redirect.-


The Grumman G-73 Mallard is a medium, twin-engined amphibious aircraft. Many have been modified by replacing the original Pratt & Whitney Wasp H radial engines with modern turboprop engines. Manufactured from 1946 to 1951, production ended when Grumman's larger SA-16 Albatross was introduced.

Design and development

Building on the success of the Goose and Widgeon, Grumman Aircraft developed Design 73, the larger "Mallard" for commercial use. Retaining many of the features of the smaller aircraft, such as twin radials, 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, a two-step hull and wingtip fuel tanks.

Operational history

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 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 in Georgian Bay, Canada and ferried customers there from Detroit. Another, Detroit'er, William Packer of General Motors also owned a Mallard which he flew to Killarney often. The Fruehauf Trailer Historical Society Another Mallard was purchased in the early 1950s by the Aga Khan.

The Royal Egyptian Air Force used a Mallard as part of their Royal Flight; it was reportedly King Farouk's favourite aircraft.[1]

The Mallard received a new lease on 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 the US. 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 re-engine and modernize its Mallard fleet, which is used to support its pearling operations in Northern Australia. The fleet has been extensively rebuilt and also re-engined with P&WC PT6As, and is currently undergoing a life extension program.

Incidents

File:Chalks Turbo Mallard at Bimini.jpg
Turbo Mallard of Chalks International Airline on a scheduled service at Bimini, Bahamas, in November 1989 before the plane took off to Santo Domingo

Chalk's Ocean Airways purchased Mallard N1208 from the Fruehauf Corporation. The type received much attention after a Turbo Mallard, operating as Chalk's Ocean Airways Flight 101, crashed after takeoff from Miami Harbor on 19 December 2005. Eighteen passengers and two crew perished when the right wing separated from the fuselage of the 58-year-old aircraft.[2] The cause of the accident was determined by the subsequent investigation to be 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 the company began operations in 1917.

Operators

Civil operators

23x15px Australia
23x15px Canada
23x15px United States
  • Antilles Air Boats
  • Chalk's Ocean Airways (operated both the piston engine and turboprop engine variants)
  • Virgin Islands Seaplane Shuttle (operated both the piston engine and turboprop engine variants)

Military operators

23x15px Egypt

Specifications (G-73T)

File:Chalk's Mallard.jpg
Chalk's Turbo Mallard at Abaco, 1999

General characteristics

  • Crew: two
  • Capacity: Script error: No such module "convert". payload or up to 17 passengers
  • Length: Script error: No such module "convert".
  • Wingspan: Script error: No such module "convert".
  • Height: Script error: No such module "convert".
  • Empty weight: Script error: No such module "convert".
  • Gross weight: Script error: No such module "convert".
  • Max takeoff weight: Script error: No such module "convert".
  • Powerplant: 2 × Pratt & Whitney R-1340 radial engine (originally) or, if modified, Pratt & Whitney Canada PT6A-34 turboprop engines, Script error: No such module "convert". each

Performance

  • Maximum speed: Script error: No such module "convert".
  • Cruise speed: Script error: No such module "convert".
  • Never exceed speed: Script error: No such module "convert".
  • Range: Script error: No such module "convert".
  • Service ceiling: Script error: No such module "convert".
  • Rate of climb: Script error: No such module "convert".
  • Power/mass: .086 hp/lb (0.029 kW/kg)

See also

Related development
Aircraft of comparable role, configuration and era

Related lists

References

Notes
  1. ^ Lees, Norman Birds of Passage. Pictorial memories of visitors to Malta 1948/1950 Air Enthusiast No.74 March/April 1998 p.6 with photograph
  2. ^ http://www.youtube.com/watch?v=hfEqjxX4wTI
Bibliography
  • Hotson, Fred W. and Matthew E. Rodina. Grumman Mallard: The Enduring Classic. Scarborough, Ontario: Robin Brass Studio, 2006. ISBN 978-1-896941-44-8.
  • Thruelsen, Richard. The Grumman Story. New York: Praeger Publishers, Inc., 1976. ISBN 0-275-54260-2.
  • Winchester, Jim, ed. "Grumman Goose/Mallard." Biplanes, Triplanes and Seaplanes (The Aviation Factfile). Rochester, Kent, UK: Grange Books plc, 2004. ISBN 1-84013-641-3.
</dl>

External links