Grumman Ag Cat

Grumman Ag Cat
国	米国
役割	農業用航空機
初飛行	1957
構築	知りません

ザ グラマンG-164C Ag-CAT は、1950年代にグラマン社が開発した単発複葉農業用航空機であるグラマンG-164 Ag-Catの派生型です。Ag-Catは、大手航空機会社が農業用航空用に特別に設計した最初の航空機であり、改造されたダスターよりも安全性と信頼性が大幅に向上しました。Ag-Catは当初、グラマン社との契約によりシュヴァイツァー・エアクラフト社が製造し、後に他のメーカー社も製造した。G-164Cは1995年にAg-Cat Corp.によって導入され、750馬力のプラット・アンド・ホイットニーPT6A-34AGターボプロップエンジン、より大きなホッパー容量、改善されたコックピットの視認性、および新しい尾翼設計を特徴としていた。G-164C Ag-Catは、最大400ガロンの液体または3,000ポンドの乾燥化学薬品を運ぶことができ、短くて荒れたフィールドから操作できます。G-164C Ag-Catは、世界中の作物の散布、散布、播種、消火活動に広く使用されています。

ソース：ウィキペディアのグラマンAG猫

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 55

Grumman G-164C Ag-Cat 56

Grumman G-164C Ag-Cat 57

Grumman G-164C Ag-Cat 58

Grumman G-164C Ag-Cat 59

Grumman G-164C Ag-Cat 60

Grumman G-164C Ag-Cat 61

Grumman G-164C Ag-Cat 62

Grumman G-164C Ag-Cat 63

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