Spanish Air Force Bomber SB 2M-100

Spanish Air Force Bomber SB 2M-100

1/72 WWII military aircraft fighter scale plastic model kit
ICM 72161

High-quality details.

Manufacturer: ICM Models (Ukraine)
Scale: 1/72
Material: Plastic
Paint: Unpainted, Unassembled, Kit do not contain paints and glue.
Condition: New in Box

TNumerically the most important bomber in the world in the late 1930s, the SB was the first modern stressed-skin aircraft produced in quantity in the Soviet Union and probably the most formidable bomber of the mid-1930s. Many versions saw extensive action in Spain, the Republic of China, Mongolia,Finland and at the beginning of the War against Germany in 1941. It was also used in various duties in civil variants, as trainers and in many secondary roles.

Successful in the Spanish Civil War because it outpaced most fighters, the aircraft was obsolete by 1941. By June 1941, 94% of bombers in the Red Army air force (VVS RKKA) were SBs.

In 1933 the Soviet Air Force ministry (UVVS) issued an outline requirement for a high-speed bomber. Work on this proposal at TsAGI began in January 1934. The SB was designed and developed in the Tupolev KB ("Design Bureau") by a team led by A. A. Arkhangelski. Two versions were planned – with Wright Cyclone radial engines (ANT-40 RTs), and with theHispano-Suiza 12Y liquid-cooled V12 engines (ANT-40 IS). The skills gained in the design of the MI-3 and DI-8 aircraft were widely used. The first two prototypes were designed as ANT-40.1 and ANT-40.2. The Cyclone powered prototype flew first, on 7 October 1934, with the first Hispano-Suiza powered prototype (ANT-40₁), which featured a larger wing, flew on 30 December 1934, demonstrating superior performance.

The second Hispano-Suiza powered aircraft, the ANT-40₂ was considered a production prototype, and its performance was impressive. It was however plagued by teething problems, leading unhappy test personnel to cover the ANT-40₂ with placards listing the aircraft's defects prior to a visit by Sergo Ordzhonikidze, the Commissar for Heavy Industry. On seeing these placards, Ordzhonikidze summoned Tupolev to a meeting at the Kremlin to discuss these shortfalls. When Tupolev stated that most of the defects were trivial. On hearing this, Joseph Stalin said:In 1937, negotiations were successfully concluded between the Soviet and Czechoslovak governments for the supply of SB bombers and a licence for local production in exchange for the right to produce the Skoda 75 mm Model 1936 mountain gun. The version of the SB to be supplied to, and subsequently license-built as the Avia B-71 was fundamentally the SB 2M-100A but fitted with the Avia-built Hispano-Suiza 12-Ydrs engine. A single 7.92 mm ZB-30 machine gun supplanted the twin ShKAS machine guns in the nose and similar weapons were provided for the dorsal and ventral stations.

Sixty aircraft were to be flown to Czechoslovakia by mid-1938. The planned licensed production program took a decidedly leisurely course, despite the increasingly dangerous political situation. By 15 March 1939, when the German Wehrmacht occupied Bohemia and Moravia, not one Czech-built aircraft had been delivered.The SB was an all-metal monoplane powered by two Klimov M-100 12-cylinder water-cooled engines (license production version of Hispano-Suiza 12-Yrds engine) which drove fixed-pitch two-bladed metal propellers. The engines were provided with honeycomb-typefrontal radiators enclosed by vertical thermostat-controlled cooling shutters. At an early production stage, the M-100 engine gave place to an improved M-100A engine, driving ground-adjustable three-pitch propellers, with speed being boosted to 423 km/h (263 mph) at 4,000 m (13,000 ft). Because of its broad, high aspect ratio wing, that gave it a good altitude performance – Russian crews nicknamed the SB the "Pterodactyl".

SB
Finnish SB
Role	Fast bomber
Manufacturer	Tupolev
Designer	Alexander Arkhangelsky
First flight	7 October 1934
Introduction	1936
Retired	1950 (Spanish Air Force)
Primary users	Soviet Air Forces Czechoslovakian Air Force Chinese Nationalist Air Force Luftwaffe
Produced	1936–1941
Number built	6,656