Grumman G-73 Mallard

  • CountryUnited States of America
  • TypeTen seat utility amphibious transport
  • PowerplantsG-73 - Two 450kW (600hp) Pratt & Whitney R1340S3H1 Wasp nine cylinder piston radial engines driving three blade constant speed propellers. G-73T - Two 530kW (715shp) Pratt & Whitney Canada PT6A27 or PT6A-34 turboprops.
  • PerformanceG-73 - Max speed 346km/h (187kt), cruising speed 290km/h (157kt). Initial rate of climb 1290ft/min. Service ceiling 23,000ft. Range with max fuel 2220km (1655nm). G-73T - Max cruising speed 354km/h (191kt), economical cruising speed 346km/h (187kt). Initial rate of climb 1350ft/min. Service ceiling 24,500ft. Range with max fuel and no reserves 2595km (1400nm), with max payload and no reserves 1388km (750nm).
  • WeightsG-73 - Empty 4240kg (9350lb), max takeoff 5783kg (12,750lb). G-73T - Empty equipped 3970kg (8750lb), max takeoff 6350kg (14,000lb).
  • DimentionsG-73/G-73T - Wing span 20.32m (66ft 8in), length 14.73m (48ft 4in), height on undercarriage 5.72m (18ft 9in). Wing area 41.3m2 (444sq ft).
  • CapacityCrew of two. Main cabin seating for up to 10 passengers. Many aircraft used as executive transports with customised interiors.
  • Production59 Mallards built between 1946 and 1951. Small numbers later converted to turboprop power.

Following in the strides of the more diminutive Goose and Widgeon before it, Grumman created the G-73 Mallard land and water proficient for business utilization.

Created in the prompt after war years, the Mallard is of comparable general design to Grumman's prior land and/or water capable outlines in that it peculiarities twin outspread motors on a high mounted wing with under wing buoys, retractable undercarriage and an unswept tail unit. Dissimilar to the prior air ship the Mallard characteristics tricycle undercarriage, a focused on skin two stage structure and fuel might be conveyed in the wingtip tanks.

The Mallard model first flew on April 30 1946, and the sort entered administration quickly a while later in September that year with a Canadian administrator. The Mallard was intended for provincial carrier operations with two pilots and 10 travelers, however the greater part of the 59 conveyed were for corporate utilization. Today just a little number stay being used, however their extraordinary land and/or water capable capacity implies they stay well known, especially with visitor administrators.

Like the prior and more diminutive Goose, the Mallard has been fitted with Pratt & Whitney Canada Pt6a turboprops. Frakes Aviation in the USA reengined a little number of Mallards as G-73ts in the early 1970s, the Pt6s significantly boosting execution and working economy. The principal Frakes change first flew in 1969 and a FAA supplemental sort authentication was granted in October 1970.

In right on time 1994 an arrangement rose which would see the Mallard reemerge generation in the Czech Republic. Air and Levov of the Czech Republic, and Duncan Aviation of the USA planned to raise the fundamental money to restart the line in the late 1990s. These arrangements later slipped by.

Pictures of Grumman G-73 Mallard