United States' Grumman J2F Duck floatplane¹

Grumman J2F Duck:

Grumman J2F Duck:

Grumman J2F Duck:

Grumman J2F-6 Duck:

Design

Leroy Grumman designed the Grumman J2F in 1932 to be a replacement for the Loening amphibians in service with the United States Navy.¹

Prototype

The XJF-1 prototype first flew on April 24, 1933.¹

Production

Production started in April 1934.¹ Deliveries began at the end of 1934.¹

• XJF-1: 1¹
• JF-1: 27¹
• JF-2: 23¹
• JF-3: 5¹
• J2F-1: 29¹
• J2F-2: 30¹
• J2F-3: 20¹
• J2F-4: 32¹
• J2F-5: 144¹
• J2F-6: 330¹
• Total: 641¹

Variants

• XJF-1: Prototype.¹ Pratt & Whitney R-1535-52 engine.¹
• JF-1: Production model.¹
• JF-2: Wright Cyclone engine.¹
• JF-3:
• J2F-1: Inter aileron struts removed.¹
• J2F-2:
• J2F-2A: United States Marine Corps modified to carry a machine gun and bomb racks.¹
• J2F-3:
• J2F-4:
• J2F-5: Arrived in 1940.¹
• J2F-6: Built by Columbia Aircraft.¹

Usage

Argentina and the United States used the J2F Duck.¹

Argentina

Argentina received 23 JF-2s.¹

	Grumman J2F Duck1	Grumman JF-1 Duck1	Grumman JF-2 Duck1	Grumman JF-3 Duck1	Grumman J2F-1 Duck1	Grumman J2F-2 Duck1	Grumman J2F-5 Duck1	Grumman J2F-6 Duck1
Type	Utility amphibian1
Crew	2 - 31
Engine (Type)		Pratt & Whitney R-1830-62 Twin Wasp1	Wright R-1820-102 Cyclone1	Wright R-1820-102 Cyclone1	Wright R-1820-102 Cyclone1	Wright R-1820-102 Cyclone1	Wright R-1820-50 Cyclone1	Wright R-1820-54 Cyclone1
Cylinders		Radial 141	Radial 91	Radial 91	Radial 91	Radial 91
Cooling
HP		7001	7501	7501	7501	7501	9501	1,0501
Propeller blades		31	31	31	31	31	31	31
Dimensions
Span	39'1 11.89 m1
Length	34'1 10.36 m1
Height	12' 4"1 3.76 m1
Wing area
Weight
Empty							4,300 lb1 1,950 kg1	5,445 lb1 2,470 kg1
Loaded							6,711 lb1 3,044 kg1	7,700 lb1 3,493 kg1
Performance
Speed							188 mph1 303 kph1
Cruising speed							150 mph1 241 kph1
Climb							1,500'/minute1 457 m/minute1
Service ceiling							27,000'1 8,230 m1
Range							780 miles1 1,255 km1
Armament
Rear cockpit	1: 0.303" MG1
Bombs - under wings	2: 100 lb1 2: 45 kg1

Sources:

1. Aircraft of WWII, Stewart Wilson, 1998

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