3d 9s18m snowdrift 9s18 model - 9S18M_SnowDrift_Multi... by ES3DStudios

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Centimetric band 3-D target acquisition radar. NATO reporting name 'Snow Drift'.

The baseline 9S18M1 target acquisition radar is described as being a 3-D, centimetric band, three-man, coherent pulse equipment that forms part of the Buk-M1 (NATO reporting name SA-11 'Gadfly') SAM system. The radar's antenna takes the form of a flat waveguide array that produces a pencil beam that is scanned electronically in elevation. Azimuthal coverage is provided by mechanical rotation of the antenna. Overall system design incorporates low sidelobes, frequency agility and 'programmed' control of the radar's azimuth and elevation scan patterns to optimise coverage of particular sectors according to their particular threat and jamming environments. System control is by means of an integrated digital computer and pulse-to-pulse cancellation and receiver sensitivity time control circuitry is used to minimise clutter interference. Weighing approximately 35 tons, the baseline 9S18M1 radar is mounted on a GM-567 cross-country tracked chassis. Power is drawn from either a 75 kilowatt gas turbine driven generator, a generator run-off the GM-567's engine or (via converters) a 200 V/50 Hz industrial supply and the equipment features a built-in test routine together with an integral 'telecoded' data communications link with which to disseminate acquired data to the Buk-M1's command post.

The 9K37 utilises the 9S18 'Tube Arm'/9S18M1 'Snow Drift' surveillance radar in combination with the 9S470/9S470M1 'Fire Dome' H/I-band tracking and engagement radar which is mounted on each TELAR. The 'Snow Drift' surveillance radar has a maximum detection range of 85 km (53 miles) and can detect an aircraft flying at 100 m (330 ft) from 35 km (22 miles) away and even lower flying targets at ranges of around 10-20 km (6-12 miles). 'Snow Drift' is mounted on a chassis similar to that of the TELARs.

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