The L-21 was a U.S. Army Korean war era light liaison aircraft that later was used by the USAF. Prototypes were delivered in 1951 (as the YL-21) with the L-21A produced starting in 1952. The L-21B was redesignated as the U-7A in 1962.

The L-21 is a single engine, high-wing, 2-seater aircraft, based on the Piper PA-18, often used for agricultural purposes in the civilian market. The U.S. Air Force used the PA-18 in civil markings for contract training at civilian schools.

Piper L-21A Super Cub at the Texas Military Forces Museum, Camp Mabry, TX, 3 February 2006.  Photo courtesy of Bob Pettit
Piper L-21A Super Cub at the Texas Military Forces Museum, Camp Mabry, TX, 3 February 2006. Photo courtesy of Bob Pettit.

Today in WW II: 27 Sep 1939 Siege of Warsaw ends with surrender of Polish forces to Germany, although pockets of resistance remain throughout Poland.  More 
27 Sep 1940 Germany, Italy and Japan sign Tripartite Pact.
27 Sep 1941 SS Patrick Henry, the first Liberty Ship, launched by Pres. Franklin D. Roosevelt at the Bethlehem-Fairfield Shipyard in Baltimore, MD.
27 Sep 1943 Airfields near Foggia, on the east coast of Italy, captured by British, giving Allied air power the base to hit targets in France, Germany and the Balkans.
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

Piper L-21 Super Cub

Wingspan 35 ft. 3 in.
Length 22 ft. 7 in.
Engine 125hp Lycoming O-290
Max speed 125 mph.
Service ceiling 21,650 feet
Range 770 miles
Load 630 lbs.

Piper L-21 Super Cub with U.S. Army markings
Piper L-21 Super Cub with U.S. Army markings.

Piper L-21A Super Cub at the Texas Military Forces Museum, Camp Mabry, TX, 3 February 2006.  Photo courtesy of Bob Pettit
Piper L-21A Super Cub at the Texas Military Forces Museum, Camp Mabry, TX, 3 February 2006. Photo courtesy of Bob Pettit.

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