Flying Perfection

Grumman G-73 Mallard, Executive Transport

1 of 3 remaining freshwater G-73s, airworthy and ready for adventure, now offered for sale for the first time in 30 years.

Able to travel long distances with speed and comfort, and at home in both major airports and private strips, busy harbors and hidden lakes, the Grumman G73 Mallard amphibious flying boat is perfect for exploring. Mallards regularly flew to Europe and back, or explored the spectacular rivers, lakes and wilderness of our continent and around the world.

The Mallard is not dependent on marinas, docks or ramps. A hatch in the large bow compartment enables a crew member to set anchors, to moor on a buoy, to cast lines to a tow boat or to beach upon the shore. The wide rear door makes access to boats easy. The rear storage compartment and adjacent vestibule have space for an inflatable dinghy and outboard motor.

This immaculate, corrosion-free, freshwater Mallard cannot be replicated for less than $2.5 million.

Reasonable offers will be considered.

Fly to adventure in a luxury flying boat.

**J-57’s Latest Adventure: October 2020, Stehekin, Washington**
Stehekin is a remote village, unreachable by road, cradled between the peaks and crags of the North Cascades on the shore of 50-mile long Lake Chelan. The Mallard’s control harmony and response made fun of flying this airliner through the turns of the gorge.
Its deep-V hull and rugged “iron works” construction made for silky landings and take-off in Lake Chelan’s white-capped waves whipped up by winds from the north. On the water, a little power was enough to maintain position offshore while the co-pilot set the anchors from the bow hatch. The crew inflated the dinghy at the rear door before setting off to shore, leaving a topside lookout to taxi the flying-boat out of danger if the anchors were to drag.

1951 Grumman Mallard J57 -N188AC

One of only 3 Mallards never used in ocean operations (0 salt-water landings since new).
Current annual and Actively Flying in the Pacific Northwest.
One private owner for past 29 years.

“Due to kindness and friendship, the Fenwick family invited me to fly their G73 Grumman Mallard. The airplane was the ultimate corporate amphibian transport with links to the Gulfstreams to come down the line. The airplane has delightful control harmony and effectiveness. The engines are very smooth and the cabin is very quiet. I have to say 1200 hp (a full boot of right rudder for water take offs required) really gets the job done.

The Mallard eased through weekend Priest Lake boat wake rough water like a China Clipper. What a machine! I felt very privileged to experience this amazing aircraft of which only 9 remain in airworthy condition. The two examples that the Fenwick family own are stellar and fitted with elegant interiors. I felt like if I had turned around in flight I might see back in the cabin a move star, Howard Hughes or Henry Ford seated in the cushy seats.

As I build my increasing treasured Grumman flying boat time I have great admiration for the engineering and vison the Grumman "iron works" had back in the slide rule and pencil drawing days. “

— Addison Pemberton

**TAKE CONTROL**

The navigation systems were replaced and upgraded.
J57 features airline-quality Collins radios and an avionics suite including dual HSIs and RMIs, a color radar, marine depth gauges, a radar altimeter and various other instruments.
Everything works. The flying boat handles beautifully in all stages of flight, also on land or water!

The executive interior has luxurious seating for nine in two spacious cabins, individual ventilation, heating, oxygen and audio, a dining table, a hot refreshment station, a private toilet with sink and a large storage closet.

Flying History

The Youngest Mallard

Of 59 Mallards built, J57 is one of only 9 original piston G73 Mallards still flying and one of only three privately owned Mallards that escaped salt-water operations altogether.

Built for American Cyanamid Corporation in 1951, J57 is the youngest Mallard in existence. Certified in the transport airworthiness category to meet the exacting needs of the executive market, J57 was factory-equipped to airliner standards with dual pitot-static and navigation instrumentation.

J57 features a 50-gallon auxiliary fuel tank in each sponson and an individually-operable left and right landing gear system that enhances stability and control in cross-wind water operations.

One of the most capable and beautiful aircraft ever built, this queen of seaplanes attracts admirers wherever she goes!

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Multi-Engine Seaplane

Relive the golden age of flight with the perfect airplane for domestic and international travel, cruise at 160 knots with supercharged 600hp P&W 1340 engines.

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Adventure Together

Certified to be flown by a single pilot with 10 passengers, this rare classic flying boat is perfect for flying friends and family in safety, comfort and style.

Technical Specifications

Wing Span 66’8”
Length 48’4”
Height 18’9”
Max takeoff weight 12,750 lbs
Max speed level flight 190 kts
VMC 78 kts
Stall, flaps down 62 kts
Service ceiling 23,000 ft.
Oxygen Installed, all occupants

All Maintenance & Logs
Includes all logs since its first test flight in 1951 document J57’s 11,638 hours of service as an executive/personal transport with not even one landing in salt water.

Grumman G73 Mallard s/n J57 is one of two pristine Mallards in the Tanglefoot collection of flying boats hangered and maintained as personal aircraft. It has been lovingly and continuously hangered at Tanglefoot Seaplane base in Coolin, Idaho since purchased in 1991.

When J2, a second salt-water-free Mallard in excellent condition was bought and put into service, J57 was preserved in the Tanglefoot Hangar as a static display. J57 was returned to service in 2018 after comprehensive inspection and refurbishment.

Currently in Annual.

Total Times:

Airframe 11,638
Left Engine TSOH 538
Right Engine TSOH 838

**THE WORLD’S FINEST AMPHIBIAN**
The Mallard is perfect for commuting to your lakeside lodge, exploring inaccessible lakes and rivers with family and friends or simply traveling in style!

Luxury Executive Transport

As the first luxury, multi-engine executive transport, the Mallard pioneered the Grumman Gulfstream line.

“A once in a lifetime opportunity to own not only a unique airplane, but to experience the golden age of flight.”

BORN IN LONG ISLAND, NEW YORK
The speed, comfort and the safety of land/sea capability made Mallards the premium choice of executives such as William Boeing, Vincent Astor, Frank Fuller, Gar Wood, Henry Ford, C.F. Kettering, Christian Dior, and King Farouk of Egypt.
Grumman followed the Mallard with the Grumman Gulfstream family of luxury turbine aircraft. As businesses sacrificed the flying-boat’s versatility for the Gulfstream’s speed, Mallards were snapped up by operators of scheduled ocean airline services.
Many were converted to 17-passenger ocean airliners and operated in conditions for which they were not designed. Tragically, saltwater, rough water landings and inadequate maintenance inflicted corrosion and cracking of major structural elements in the wing.
Because of the $1m+ cost of removing and rebuilding the wing to satisfy Grumman’s Service Directive regarding wing corrosion repair, or $3-4M+ to restore a Mallard to original condition, many Mallards were either consigned to the boneyard or patched up, refurbished, and placed on the market.
J57 is one of only three Mallards to have escaped operation in the ocean. It has lived its entire life as a fresh-water seaplane, stored in a hangar, and cared for as personal or executive transport.

EXECUTIVE TRANSPORT CLASS

The Grumman Mallard pioneered the luxury twin-engine executive transport category. Transport airworthiness category is applicable to large civil aircraft and is shown on its airworthiness certificate. A principle behind transport category design standards is duplication of all elements wherever failure of one element is likely to cause an accident. For example, the loads on the wings and tailplanes are usually carried by multiple load paths.