Osa 9M33 Credit - © Mark Wade

Development of the basic Osa system to provide a short-range surface-to-air missile for larger ships.

The problems of a shipboard installation for the Osa system proved less difficult than that for the army's mobile version. In 1963 all three launcher systems in development at TsKB-34 were in trouble, and the naval project was handed over to TsKB-7 for completion. This was for the Osa-M system, for which TsKB-7 developed the ZIF-122 launcher, capable of handling the heavy 9M33 missile. TsKB-7 began work on the troubled project in 1964. Although the state trials schedule was slipped nearly four years, in the third quarter of 1967 Osa-M trials were finally completed successfully. The system was accepted by the VMF for production. It would be another four years before the Army's version went into production.

Vehicles:

• 9A33BM3 TELAR with 6 missiles
• 9T217BM2 transloader
• 9V210M3 technical maintenance vehicle

The 4R33 Baza Pop Group radar has a target acquisition range of 30 km in the H band, and conducts target tracking in the J band to a range of 20 km.

Manufacturer: Altair/Grushin. Total Mass: 126 kg (277 lb). Core Diameter: 0.21 m (0.68 ft). Total Length: 3.16 m (10.36 ft). Span: 0.64 m (2.09 ft). Standard warhead mass: 15 kg (33 lb). Maximum range: 7.00 km (4.30 mi). Boost Propulsion: Solid rocket, dual thrust. Guidance: Command Link. Maximum speed: 2,160 kph (1,340 mph). Minimum range: 1.00 km (0.60 mi). Ceiling: 7,000 m (22,900 ft). Floor: 60 m (196 ft).

• Yeftifyev, M D, Iz istorii sozdaniya zenito-raketnovo shchita rossii, Vuzovskaya kniga, Moscow, 2000. Comprehensive history of development of the development of surface-to-air and anti-ballistic missiles in the Soviet Union, with summaries of work in other countries as well. Accessed at: http://www.eastview.com/xq/ASP/sku=A2010232/f_locale=/Evtif'ev/MD/Moskva/Russia/Russian/qx/russian/books/product.asp.