Grumman J2F

Grumman JF2 Duck
Type:	Amphibious aircraft
Design country:	United States
Manufacturer:	Grumman Columbia Aircraft Corporation
First flight:	1936
Commissioning:	1936
Number of pieces:	584

The Grumman J2F Duck was a single-engine biplane - amphibious aircraft by 1937. It originally had the working name G-4 .

The aircraft was used by the US Navy and US Coast Guard as a sea ​​rescue aircraft , reconnaissance aircraft and for target display. The use took place both from land bases and from aircraft carriers .

history

The J2F was a further development of the JF , the prototype of which flew in 1933 and reached the US Navy in 1936 . The J2F-1 went into series production in 1937 with a more powerful 760 hp Wright R-1820 radial engine . There were a total of six variants of the J2F (J2F-1 to J2F-6).

The last variant J2F-6 with a 1050 hp Wright R-1820-54 radial engine was built in 1940/41. A total of 567 copies of all variants were produced. The last machines were still in use until 1955.

construction

The two-seater biplane had a large central float and two small floats at the ends of the wings. The landing gear was retractable.

production

Construction figures of the Grumman Duck:

Manufacturer	version	1936	1937	1938	1939	1940	1941	1942	1943	1944	1945	TOTAL
Grumman, Bethpage	J2F-1	14th	15th									29
Grumman, Bethpage	G-20		8th									8th
Grumman, Bethpage	J2F-2			30th								30th
Grumman, Bethpage	J2F-3				20th							20th
Grumman, Bethpage	J2F-4				12	12	8th					32
Grumman, Bethpage	G-15				4th							4th
Grumman, Bethpage	J2F-5						22nd	109	13			144
Columbia, Valley Stream	J2F-6								13	198	119	330
TOTAL		14th	23	30th	36	12	30th	109	26th	198	119	597

Military users

A Columbia-built J2F-6 Duck with U.S. Marine Corps markings at the Planes of Fame Museum in Valle, Arizona , October 2005

 Argentina

• Argentine Navy

 Colombia

 Mexico

• Mexican Navy: used some US Navy J2F-6s after the war

 United States

• United States Army Air Forces
• United States Coast Guard
• United States Marine Corps
• United States Navy

 Peru

• Peruvian Navy: some ex-USN

Technical specifications

Parameter	Data Grumman J2F-6
crew	Pilot and observer
length	10.40 m
span	11.90 m
Wing area	38 m²
height	4.40 m
Empty mass	2485 kg
Takeoff mass	3043 kg
Top speed	305 km / h
Service ceiling	7848 m
Range	2408 km
Engines	a 9-cylinder radial engine Wright R- 1820-54, 1050 PS (783 kW)
Armament	.030 caliber machine gun, 295 kg bombs / depth charges

Aircraft on display

• National Museum of Naval Aviation , Naval Air Station Pensacola , Florida
• United States Air Force Museum. Wright-Patterson Air Force Base , Ohio
• San Diego Aerospace Museum, San Diego , California
• Planes of Fame Museum, Chino (California)

Web links

Commons : Grumman J2F Duck  - collection of images, videos and audio files

Individual evidence

1. ↑ US Warplanes. Retrieved February 10, 2020 .  ; Francillon, Renè J .: Grumman Aircraft since 1929, London 1989 (only for the years 1936-1939, the numbers from 1940 are incorrect); Statistical Digest of the USAAF 1946, p. 94 ff.
2. ↑ Nuñez Padin, 2002.
3. ↑ Allen 1983, p. 77.
4. ↑ Allen 1983, p. 52.