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: 7 Dec 1941 Japanese attack US Navy at Pearl Harbor, Hawaii, sinking or severely damaging 18 ships: 8 battleships, 3 light cruisers, and 3 destroyers .  More 
7 Dec 1941 Japanese declare war on Britain and United States.
7 Dec 1941 In North Africa, the Afrika Korps fell back to El Agheila, halting their retreat and the British Operation Crusader advance there.
7 Dec 1944 US Army units land at Ormoc Bay, Leyte, Philippine Islands cutting off the Japanese ability to reinforce and supply Leyte.
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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