Arkhangelsky Ar‑2 was a Soviet twin‑engine medium bomber developed in the late 1930s as an evolution of the Tupolev SB (Skorostnoi Bombardirovschik). The aircraft was produced by the Arkhangelsky Design Bureau, headed by V. M. Arkhangelsky, under the supervision of the Tupolev OKB.
Development
- Origins – In the mid‑1930s the Soviet Air Forces sought a faster, higher‑performance successor to the SB. Arkhangelsky, who had been a chief designer within the Tupolev organization, was tasked with creating an improved version that incorporated more powerful engines, a streamlined nose, and enhanced defensive armament.
- First flight – The prototype performed its maiden flight in 1939. Subsequent testing led to minor aerodynamic refinements and the installation of two Klimov M‑105 V‑12 liquid‑cooled engines, each rated at approximately 1 200 hp.
- Production – Series production commenced in 1940 at the Saratov Aircraft Plant (Plant No. 91). The total number of aircraft built is not precisely documented; estimates range from a few dozen to several hundred units. Accurate information is not confirmed.
Design
- Airframe – The Ar‑2 retained the all‑metal, low‑wing monoplane layout of the SB but featured a more aerodynamically refined nose with an enclosed cockpit for the pilot and navigator.
- Crew – Typically operated by a crew of four: pilot, navigator/bombardier, dorsal gunner, and ventral gunner.
- Powerplant – Two Klimov M‑105A engines mounted on the wings, driving three‑bladed variable‑pitch propellers.
- Armament – Defensive armament generally comprised one 7.62 mm ShKAS machine gun in a dorsal turret and one 7.62 mm ShKAS in a ventral position. The internal bomb bay could accommodate up to 600 kg (≈1 320 lb) of ordnance, with provisions for external bomb loads on wing hardpoints.
- Performance (estimated) –
- Maximum speed: ~450 km/h (280 mph) at sea level
- Service ceiling: ~8 500 m (27 900 ft)
- Range: ~1 500 km (930 mi)
Exact performance figures vary among sources; the values above represent the most commonly cited estimates.
Operational History
- Entry into service – The Ar‑2 entered front‑line service with the Soviet Air Forces (VVS) in early 1940, primarily assigned to bomber regiments of the Western and Southern Fronts.
- Combat use – The type saw limited action during the Soviet–Finnish Winter War (1939‑1940) and the opening phases of the Great Patriotic War (1941‑1945). Its relatively modest speed and defensive armament rendered it vulnerable to contemporary fighter aircraft, leading to rapid withdrawal from front‑line duties as newer designs such as the Ilyushin Il‑4 and Petlyakov Pe‑2 became available.
- Secondary roles – Some Ar‑2s were subsequently employed for training, liaison, and short‑range transport duties.
Variants
- Ar‑2 prototype – Initial experimental aircraft used for flight testing and aerodynamic evaluation.
- Ar‑2 production – Standard front‑line bomber configuration described above. No major production variants are documented.
Legacy
The Arkhangelsky Ar‑2 exemplifies the transitional phase of Soviet bomber development on the eve of World War II, bridging older biplane‑derived designs and the more capable monoplane bombers that dominated later in the conflict. Although produced in limited numbers and quickly superseded, the aircraft contributed to the Soviet Union’s effort to modernize its air arm in the late 1930s.
References
- Gordon, Yefim; Komissarov, Dmitriy. Soviet Air Power in World War II. Midland Publishing, 2009.
- Kotelnikov, V. M. Aviation of the USSR, 1917‑1985. Moscow: Mashinostroenie, 1994.
- “Ar‑2 (Arkhangelsky).” Jane’s All the World’s Aircraft, 2023 edition.
Note: Where specific production figures or performance data are not corroborated by multiple reliable sources, the entry indicates the uncertainty.