Turbine Mallard
 Developed in the immediate postwar years, the Mallard is of similar overall configuration to Grumman's earlier amphibious designs in that it features twin radial engines on a high mounted wing with under wing floats, retractable undercarriage and an unswept tail unit. Unlike the earlier aircraft the Mallard features tricycle undercarriage, a stressed skin two step hull and fuel can be carried in the wingtip tanks.  Like the earlier and smaller Goose, the Mallard has been fitted with Pratt & Whitney Canada PT6A turboprops. Frakes Aviation in the USA re-engined a small number of Mallards as G73Ts in the early 1970s, the PT6s substantially boosting performance and operating economy. The first Frakes conversion first flew in 1969 and an FAA supplemental type certificate was awarded in October 1970. Specifications
Mfr: Grumman
Model: G-73T Serial: J-50 Built: 1948 N-Number: 730RS Engines: Two Pratt & Whitney PT6A-34 600 hp each Length: 48 ft. 4 in.
Height: 18 ft. 9 in. Wingspan: 66 ft. 8 in. Weight: Empty: 8,750 lbs. Max Takeoff: 14,000 lbs. Performance: Range: 1,120 miles Ceiling: 24,500 ft. Max Speed: 209 kts |
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