Grumman Ag Cat

Grumman Ag Cat
Paese	Usa
Ruolo	Aeromobili agricoli
Primo volo	1957
Costruito	Inconsapevole

Le Grumman G-164C Ag-Cat is a variant of the Grumman G-164 Ag-Cat, a single-engine biplane agricultural aircraft that was developed by Grumman in the 1950s. The Ag-Cat was the first aircraft specifically designed by a major aircraft company for agricultural aviation, and it represented a significant improvement in safety and reliability over converted dusters. The Ag-Cat was initially produced by Schweizer Aircraft under contract from Grumman, and later by other manufacturers. The G-164C model was introduced in 1995 by Ag-Cat Corp., and featured a 750 hp Pratt & Whitney PT6A-34AG turboprop engine, a larger hopper capacity, improved cockpit visibility, and a new tail design. The G-164C Ag-Cat can carry up to 400 gallons of liquid or 3,000 pounds of dry chemicals, and can operate from short and rough fields. The G-164C Ag-Cat is widely used for crop dusting, spraying, seeding, and firefighting operations around the world.

fonte: Grumman Ag Cat su Wikipedia

Grumman G-164C Ag-Cat Walk Around
Photographers	Vladimir Yakubov
Localisation	Capital City Air Show 2013, Sacramento, CA
Photos	123

Grumman G-164C Ag-Cat 19

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Grumman G-164C Ag-Cat 27

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General Characteristics

The Grumman G-164 Ag-Cat was the first aircraft specifically designed by a major company for agricultural aviation (crop dusting/spraying). Its rugged biplane structure, low stall speed, and excellent visibility made it ideal for demanding, low-altitude agricultural maneuvers. The G-164C is a later, enlarged variant known for its increased hopper capacity.

Property	Typical Value (G-164C/600 Variant)
Ruolo	Agricultural Aircraft (Duster/Sprayer)
Designer/Original Mfr.	Grumman Aircraft Engineering Corporation
Production Mfr.	Schweizer Aircraft Corporation (subcontracted)
First Flight (Series)	May 27, 1957
Equipaggio	1 pilot
Hopper Capacity	500 US gallons (1,892 L)
Wingspan (Upper)	12.9 m (42 ft 4.5 in)
Lunghezza	8.41 m (27 ft 7.25 in)
Max Takeoff Weight	Typically around 3,184 kg (7,020 lb)

Design and Powerplant

Engine: Pratt & Whitney R-1340 radial piston engine (Wasp).
Power Output: 450 kW (600 hp).
Fuselage Construction: Welded steel tubing truss covered with easily removable aluminum panels (for cleaning corrosive chemicals).
Cockpit: Single, elevated, and typically open (or canopy fitted) cockpit with a reinforced overturn structure for pilot safety. The cockpit is often pressurized to keep pesticides out.
Key Structural Feature: The biplane design features four interchangeable outer wing panels, simplifying maintenance and reducing spare part inventory.
G-164C Specifics: This variant is distinguished by a further stretched fuselage to accommodate the larger 500-gallon hopper compared to the earlier A and B models.

Performance and Safety

Operating Speed: Typically 129 to 161 km/h (80 to 100 mph).
Stall Speed: Low stall speed, around 104 km/h (64 mph), critical for safe low-altitude maneuvering.
Rate of Climb: Approximately 329 m/min (1,080 ft/min).
Range: Limited ferry range (designed for short-range utility).
Safety Feature: The airframe incorporates a fuselage structure designed to progressively collapse upon collision, protecting the pilot.
Modern Upgrades: Many Ag-Cats have been upgraded over the years, often replacing the R-1340 radial engine with a turboprop (like the Pratt & Whitney PT6A) to create the Turbo Ag-Cat variants.