Grumman G-73 Mallard
G-73 Mallard | |
---|---|
Grumman G-73T Turbo Mallard of Darwin Airport (2010)
| |
Role | Amphibious airliner |
Manufacturer | Grumman |
First flight | 30 April 1946 |
Status | In service, mainly private and 3 with Paspaley Pearling Company |
Primary user | Chalk's Ocean Airways (historic)
|
Produced | 1946–1951 |
Number built | 59 |
Developed into | Grumman HU-16 Albatross |
The Grumman G-73 Mallard is a medium, twin-engined
Design and development
Building on the success of the
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 at Georgian Bay, Canada, and ferried customers there from Detroit. Another Detroiter, William Packer of General Motors, also owned a Mallard, which he often flew to Killarney.[1] 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".[2]
The Royal Egyptian Air Force used a Mallard as part of their Royal Flight; it was reportedly
The Mallard received a new lease of life in the 1970s when a number of airframes were refitted by
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 a life extension program.
Incidents
Chalk's flight 101 in 2005
Prior to 2005, Chalk's Ocean Airways had an exemplary safety record operating Mallards for many years between
began operations in 1917.Australia Day 2017 at Perth
An original radial-engine Mallard,
Operators
Civil operators
- Air Whitsunday (operated both the piston engine and turboprop engine variants)[8]
- Pearl Aviation (Paspaley Pearling Co.)
- Trans Australia Airlines[9]
- Nordair (Turbo Mallard)
- Pacific Western Airlines
- Netherlands New Guinea
- Nederlandsche Nieuw Guinee Petroleum Maatschappij[9]
- 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
Specifications (G-73)
Data from Jane's All the World's Aircraft 1948[10]
General characteristics
- Crew: two
- Capacity: 10 passengers
- Length: 48 ft 4 in (14.73 m)
- Wingspan: 66 ft 8 in (20.32 m)
- Height: 18 ft 9 in (5.72 m) (on landing gear)
- Wing area: 444 sq ft (41.2 m2)
- Empty weight: 9,350 lb (4,241 kg)
- Gross weight: 12,750 lb (5,783 kg)
- Fuel capacity: 380 US gal (320 imp gal; 1,400 L)
- Powerplant: 2 × Pratt & Whitney R-1340-53H1 9-cylinder air-cooled radial engine, 600 hp (450 kW) each (takeoff power)
Performance
- Maximum speed: 187 kn (215 mph, 346 km/h) at 6,000 ft (1,800 m)
- Cruise speed: 160 kn (180 mph, 290 km/h) at 8,000 ft (2,400 m) (55% power)
- Stall speed: 62 kn (71 mph, 114 km/h)
- Range: 1,200 nmi (1,380 mi, 2,220 km) with 810 lb (370 kg) payload
- Service ceiling: 23,000 ft (7,000 m)
- Rate of climb: 1,290 ft/min (6.6 m/s)
See also
Related development
- Grumman G-21 Goose
- HU-16 Albatross
Aircraft of comparable role, configuration, and era
- PBY Catalina
- Short Sealand
Related lists
- List of flying boats
References
- Notes
- ^ The Fruehauf Trailer Historical Society
- ^ "Video:Looking back at the Globe's flying newsrooms". The Globe and Mail. 15 October 2020.
- ^ Lees, Norman Birds of Passage. Pictorial memories of visitors to Malta 1948/1950 Air Enthusiast No.74 March/April 1998 p.6 with photograph
- ^ "- YouTube". YouTube.
- ^ Ranter, Harro. "ASN Aircraft accident Grumman G-73 Mallard VH-CQA Swan River, Perth, WA". aviation-safety.net. Retrieved 2017-01-26.
- ^ "Australia Day Perth plane crash: Victims remembered as authorities search for answers". Australian Broadcasting Corporation. 27 January 2017. Retrieved 27 January 2017.
- ^ "Australia Day Swan River plane crash blamed on pilot error as ATSB calls for air show changes". Australian Broadcasting Corporation. 18 November 2019. Retrieved 14 October 2021.
- ^ Goodall 1984, pp. 547–548
- ^ a b "SOUTH EAST ASIA 1960s-1970s - INDONESIA & DUTCH NEW GUINEA". goodall.com.au. Retrieved 10 February 2021.
- ^ Bridgman 1948, pp. 267c–268c
- Bibliography
- Bridgman, Leonard (1948). Jane's All the World's Aircraft 1948. London: Sampson Low, Marston & Company, Ltd.
- Goodall, Geoff (December 1984). "Barrier Reef Mallards". ISSN 0002-2675.
- 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.
External links
- "Grumman Hatches A Mallard", November 1946, Popular Science
- New York Times article about Chalk's accident
- Aircraft Maintenance Technology article about Chalk's accident
- NTSB preliminary report on Chalk's accident DCA06MA010 of 19 December 2005
- Picture of CF-HPU Pacific Western Airlines operated Mallard in Tahsis, BC in late 1950s
- Picture of a Chalk's Mallard in Miami in 1996
- History of Chalk's Ocean Airways at answers.com
- Left at the Evening Star - selling a beloved Mallard
- Grumman Mallard's and the Fruehauf Trailer Company