Grumman | ||||||||||||||||||||||
J2F Duck
|
||||||||||||||||||||||
|
||||||||||||||||||||||
Photo: Robert Deering
4/18/2015 National Museum of Naval Aviation NAS Pensacola (NPA) Pensacola, Florida |
||||||||||||||||||||||
In 1931, a streamlined amphibious float, the
brainchild of Grumman designer Charles
Tilgner, became the basis for a new aircraft
to replace the older Loening amphibians then
in Navy service. The result was the XJF-1,
its float built as an integral part of the
fuselage. In 1937, the improved J2F-1 set an
amphibian speed record of 191 mph. The new
"Duck" performed many roles throughout World
War II, including transport, patrol,
anti-submarine and search and rescue
missions.
As Grumman completed work on its first
aircraft, the FF-1 fighter, Grumman engineer
Charles Tilgner designed a slimmer, lighter
amphibious float, designated by the Navy as
the Type B float in 1931. Incorporating some
design features of its successful FF-1,
Grumman then produced a completely new
amphibian to replace the older Loening
aircraft then in naval service.
In the new aircraft, the amphibious float was
an integral part of the fuselage. Powered by
the Pratt & Whitney R-1830 Twin Wasp of 700
horse power, Grumman's first amphibian was
designated XJF-1, and flew for the first
time in April 1933. Originally a two-seater,
the aircraft was intended for utility duties
operating both from aboard ship and from
land bases. An order was placed for 27 JF-1s
immediately after prototype trials, with
deliveries commencing in late 1934. By 1936,
JF-1s had replaced older torpedo or patrol
types then used by utility squadrons. At
that time, the Coast Guard ordered 15 JF-1s,
but with the 750 horse power Wright
R-1820-102 Cyclone engine, redesignating the
aircraft JF-2s. Later the Navy ordered five
similarly powered aircraft, designating them
JF-3s.
In 1937 the J2F-1 appeared, incorporating only
minor changes. It set a speed record for its
class of 191 mph. Subsequent models (J2F-2s,
J2F-3s and J2F-4s) were procured before
1941. In 1939, nine J2F-2As were modified
with machine guns and bomb racks for use by
the Marine Corps operating from the Virgin
Islands on Neutrality Patrol. By 1940, the
threat of war brought an order for 144
J2F-5s, and the name "Duck" became official.
Equipped with a new 950 horsepower R-1820-50
engine and a long chord cowling, the J2F-5
was the last model built by Grumman. After
Pearl Harbor, the Navy ordered 330 more
Ducks, but assigned the contract to Columbia
Aircraft Corporation of Long Island, New
York.
The J2F-6 on display was built by Columbia
Aircraft. Contrary to standard designating
practice, the Columbia-built aircraft
retained the Grumman J2F designation. Later,
an improved J2F-6, powered by the 1,050
horsepower R-1820-54, became the last in the
series. The venerable Duck served with all
the services during the World War II,
performing transport, observation/patrol,
anti-submarine and search and rescue
missions. In 1946, J2Fs participated in
Operation Highjump, the exploration of the
Antarctic. |
||||||||||||||||||||||
|
||||||||||||||||||||||
VARIANTS:
|