Grumman Ag Cat

Grumman Ag Cat
Land	Usa
Rolle	Landbrugsfly
Første flyvning	1957
Bygget	Unknow

Den Grumman G-164C Ag-kat er en variant af Grumman G-164 Ag-Cat, et enmotors biplan landbrugsfly, der blev udviklet af Grumman i 1950'erne. Ag-Cat var det første fly specielt designet af et større flyselskab til landbrugsflyvning, og det repræsenterede en betydelig forbedring af sikkerheden og pålideligheden i forhold til konverterede støvere. Ag-Cat blev oprindeligt produceret af Schweizer Aircraft under kontrakt fra Grumman og senere af andre producenter. G-164C modellen blev introduceret i 1995 af Ag-Cat Corp., og indeholdt en 750 hk Pratt & Whitney PT6A-34AG turboprop motor, en større tragt kapacitet, forbedret cockpit synlighed, og en ny hale design. G-164C Ag-Cat kan bære op til 400 liter væske eller 3.000 pund tørre kemikalier og kan operere fra korte og ru marker. G-164C Ag-Cat bruges i vid udstrækning til støvning, sprøjtning, såning og brandslukning rundt om i verden.

Kilde: Grumman Ag Cat på 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 01

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Grumman G-164C Ag-Cat 09

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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)
Rolle	Agricultural Aircraft (Duster/Sprayer)
Designer/Original Mfr.	Grumman Aircraft Engineering Corporation
Production Mfr.	Schweizer Aircraft Corporation (subcontracted)
First Flight (Series)	May 27, 1957
Besætning	1 pilot
Hopper Capacity	500 US gallons (1,892 L)
Wingspan (Upper)	12.9 m (42 ft 4.5 in)
Længde	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.

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