Lisunov Li-2

Lisunov Li-2. The Lisunov Li-2 was a license-built, Soviet-modified version of the American Douglas DC-3 transport aircraft. It became a ubiquitous workhorse for the Soviet Union during World War II and the postwar era, serving in roles ranging from transport and paratroop delivery to light bombing and passenger service. Although derived from the DC-3, it incorporated significant redesigns for Soviet production standards and operational requirements, powered by Shvetsov ASh-62 radial engines.

Development and origins

Following the successful introduction of the Douglas DC-2 and DC-3, the Soviet government purchased a production license in 1936. The task of adapting the design was led by engineer Boris Pavlovich Lisunov, who spent two years at the Douglas Aircraft Company plant in Santa Monica, California. The Soviet version, initially designated PS-84, involved extensive re-engineering to suit available materials, manufacturing tools, and the harsh operating environment of the USSR. Production began at GAZ (State Aviation Plant) No. 84 in Moscow before being evacuated to Tashkent in 1941 following the German invasion of the Soviet Union. In 1942, the aircraft was redesignated Li-2 in honor of its chief designer.

Design and variants

The airframe retained the overall configuration of the DC-3 but featured a strengthened structure, a redesigned cargo door, and different systems. Its most significant change was the replacement of the original Pratt & Whitney R-1830 Twin Wasp engines with less powerful but more readily available Shvetsov ASh-62 nine-cylinder radials. Key military variants included the Li-2V (Voyennyy, military) transport, the Li-2VV (Vysotnyy Voyennyy, high-altitude military) used for paratroop drops and partisan supply, and the Li-2NB (Nochnoy Bombardirovshchik, night bomber) equipped with bomb racks and defensive machine guns like the ShKAS or UBT machine gun. Postwar civil variants included the Li-2P (Passazhirskiy, passenger) for Aeroflot and specialized versions like the Li-2F for photo survey and the Li-2S for ambulance duties.

Operational history

The Li-2 entered service with Aeroflot and the Soviet Air Forces just prior to World War II. During the war, it became an indispensable asset, performing critical transport missions along the Lend-Lease route from Alaska to Siberia, supplying besieged cities like Leningrad, and supporting major operations such as the Battle of Stalingrad. As a night bomber, it harassed German front-line positions and logistics. After the war, it formed the backbone of Aeroflot's domestic network and served with numerous Warsaw Pact and allied air forces during the early Cold War. It saw further combat in conflicts including the Korean War and the Hungarian Revolution of 1956.

Operators

The primary military operator was the Soviet Air Forces. The civilian flag carrier Aeroflot was its largest commercial user. It was widely exported to Soviet allies, including the Polish Air Force, Czechoslovak Air Force, Hungarian Air Force, and the People's Liberation Army Air Force. Other operators included the Air Force of the Polish Army, the Yugoslav Air Force, and the North Korean Air Force. Captured examples were reportedly used by the Finnish Air Force and the Luftwaffe.

Specifications (Li-2)

* **Crew:** 4–5 * **Capacity:** 24–28 troops or 14–18 paratroops or 2,700 kg (5,950 lb) cargo * **Length:** 19.65 m (64 ft 6 in) * **Wingspan:** 28.81 m (94 ft 6 in) * **Height:** 5.15 m (16 ft 11 in) * **Empty weight:** 7,650 kg (16,865 lb) * **Max takeoff weight:** 10,700 kg (23,589 lb) * **Powerplant:** 2 × Shvetsov ASh-62 IR 9-cylinder air-cooled radial piston engines, 746 kW (1,000 hp) each * **Maximum speed:** 270 km/h (170 mph, 150 kn) * **Range:** 2,500 km (1,600 mi, 1,300 nmi) * **Service ceiling:** 5,600 m (18,400 ft) * **Armament (Military variants):** Up to 3 × 7.62 mm ShKAS machine guns or 12.7 mm UBT machine guns in dorsal, ventral, and beam positions; up to 1,000 kg (2,200 lb) of bombs

Category:Soviet military transport aircraft 1930–1939 Category:World War II transport aircraft of the Soviet Union