One of the key light Soviet bombers thirties, one of the best aircraft of this class at the time of their adopting the, SB-2 experienced a fall from the heights of "Flight of Olympus". SB-2 has fallen victim to too rapid progress in the field of aircraft, who was able to observe the end of the thirties. Prototypes of the ANT-40 is considered to be ultramodern, when in October 1934 g. made its debut flight.
SC-2 (IPG-40) – video
And coming out of the KB. n. Tupolev, these machines have incorporated a lot of the very latest know-how of the aircraft industry. Metal monoplane with a low-wing, SB had a fully enclosed cockpit and retractable landing gear. full speed, that the machine could develop on an operational height, It is not less than 325 kmh, in this way, SB flew faster than many interceptors biplane, It is armed with most countries of the world. The first prototype was chosen as the prototype of an export version, and the other - intended for the Soviet Air Force, on arms which acted as the SB-2 (high-speed bomber).
The first machine, we received in the flight of Soviet military aviation in February 1936 city, equipped with a 619-kW (830 hp) motors M 100, manufactured by Hispano-Suiza license 12Ybr and two-bladed propellers with fixed pitch. Armament consisted of two 7.62 mm machine guns ShKAS, installed in the nose turret, one - the dorsal position, and another - the ventral. The machine could carry a bomb load capacity 1000 kg. In October of the same year, SB-2 made its debut in combat, fighting as part of the flight units of Republicans against the Spanish fascists. Ultimately, in Spain acted 210 Machines of this name, staffed entirely by Soviet crews. fascists, flying parts of which were completed at the expense of biplanes Heinkel He 51 and FIAT CR.32, We experienced a real shock, Faced with SC-2, and immediately rushed to order new fighters. SB-2 were delivered in China to fight the Japanese invaders, produced under license in Czechoslovakia, which were listed under the symbol V.71.
SB-2 perfectly shows itself until, until he was faced with a serious fighter opposition: with Messerschmitt Bf 109 first in 1938 g. in Spain, and then during the Finnish War of 1939-1940., when a job did not return many bombers SB.
It was decided to upgrade the SB-2. As an interim measure Plane installed more powerful M-100A engine with variable-pitch propeller. A new version, SB-2bis, equipped with a 716-kW (960 hp) motors M 103 and had a more capacious fuel tanks, but it retained its original weaponry. Used as a day bomber from the beginning of the German invasion of 1941 city, SB-2 carried a huge loss, and it had to be used only at night.
We produce transport version of the PS-40 and PS-41, and SB-RK or AR-2, It is a modification of SB-2bis, intended for use as a diving bomber. The latter option different planes smaller area and the motors M-105R with turbochargers.
Performance characteristics of SB-2 (IPG-40)
– First flight: 7 October 1934
– Getting Started: 1936
– End of operation: 1951
– years of production: 1936 – 1941
– units produced: 6 656
– unit cost: 265 000 p. (1940 city, zd №22, cost price)
SB-2 Crew (IPG-40)
– 3 man
Dimensions SB-2 (IPG-40)
– Length: 12,57 m
– Wingspan: 20,33 m
– Height: 3,48 m
– wing area: 56,7 m²
– Wing loading: 141 kg / m
Weight Sa-2 (IPG-40)
– empty weight: 4768 kg
– curb weight: 7880 kg
Engines WB-2 (IPG-40)
– 2× capacity M103 960 l. from. (716 kW)
– thrust-to-weight ratio: 180 W / kg
SB-2 Speed (IPG-40)
– full speed: 450 kmh
– Cruising speed: 375 kmh
– Skoropodъёmnost: 9,5 m / s
– Length razbegaprobega: 300-350 m
Range SB-2 flights (IPG-40)
– 2300 km
SB-2 Service ceiling (IPG-40)
– 7800 m
Arming SB-2 (IPG-40)
– Pulyemyotnoye: 4 × 7,62 mm machine guns ShKAS
– bomb-load: 600 kg
SB-2 photo (IPG-40)
