Grumman G-73 Mallard

Amphibious Utility Aircraft

Grumman G-73 Mallard © Ed Groenendijk
Photo ©: Ed Groenendijk (Photos at
The Grumman G-73 Mallard is a twin-engined twelve-seat amphibious utility aircraft produced by the US-American manufacturer Grumman Aircraft Engineering Corporation.
Many G-73 Mallard have been converted to Turbo Mallards (G-73T) with turboprop engines.
Propulsion2 Radial Engines
Engine ModelPratt & Whitney R-1340-S3H1 Wasp
Engine Power (each)447 kW600 hp
Speed346 km/h187 kts
  215 mph
Service Ceiling7.010 m23.000 ft
Range2.221 km1.199 NM
1.380 mi.
Empty Weight4.241 kg9.350 lbs
max. Takeoff Weight5.783 kg12.750 lbs
Wing Span20,32 m66 ft 8 in
Wing Area41,3 m445 ft
Length14,73 m48 ft 4 in
Height5,72 m18 ft 9 in
First Flight30.04.1946
Production Statusout of production
Production Range1946-1951
Total Production59
ICAO CodeG73 G73T
Data for (Version)Grumman G-73 Mallard