A standard Buk battalion consists of a command vehicle,
target acquisition radar (TAR) vehicle, six
transporter erector launcher and radar (TELAR) vehicles and three transporter erector launcher (TEL) vehicles. A Buk missile battery consists of two TELAR and one TEL vehicle. The Buk-M1-2 TELAR uses the
GM-569 chassis designed and produced by JSC
MMZ (
Mytishchi). The TELAR
superstructure is a turret containing the fire control radar at the front and a launcher with four ready-to-fire missiles on top. Each TELAR is operated by a crew of four and is equipped with
chemical, biological, radiological, and nuclear (CBRN) protection. It can guide up to three missiles against a single target. While the early Buk had a day radar tracking system 9Sh38 (similar to that used on
Kub,
Tor and
Osa missile system), its current design can be fitted with a combined optical tracking system with a thermal camera and a laser rangefinder for passive tracking of the target. The 9K37 system can also use the same 1S91 Straight Flush 25 kW
G/
H band continuous wave radar as the 3M9 "Kub" system. The 9S35 radar of the original Buk TELAR uses a mechanical scan of a
Cassegrain antenna reflector, where the Buk-M2 TELAR design used a
PESA, for tracking and missile guidance. The 9K37 uses the 9S18 "Tube Arm" or 9S18M1 (which carries the NATO reporting name "Snow Drift") (;
dome) target acquisition radar in combination with the 9S35 or 9S35M1 (NATO: "Fire Dome")
H/
I band tracking and engagement radar which is mounted on each TELAR. The 9S18M1 target acquisition radar has a maximum detection range of and can detect an aircraft flying at from away and even lower flying targets at ranges of around . The TEL reload vehicle for the Buk battery resembles the TELAR, but instead of a radar they have a
crane for the loading of missiles. They are capable of launching missiles directly but require the cooperation of a 9S35-equipped TELAR for missile guidance. A reload vehicle can transfer its missiles to a TELAR in around 13 minutes and can reload itself from stores in around 15 minutes. Also, the Buk-M2 featured a new vehicle like TELAR but with radar atop of a
telescopic lift and without missiles, called a target acquisition radar (TAR) 9S36. This vehicle could be used together with two TELs 9A316 to attack up to four targets, missile guidance in forested or hilly regions. The mobile simulator SAM Buk-M2E was shown at MAKS-2013. A self-propelled fire simulator installation JMA 9A317ET SAM "Buk-M2E", based on the mobile, is designed for training and evaluating the combat crew in the war environment to detect, capture, lock on to ("maintain") and defeat targets. A computer information system fully records all actions of the crew to a "black box" to allow objective assessment of the consistency of the crew's actions and results. All vehicles of the Buk-M1 (Buk-M1-2) missile system use an
Argon-15A computer, as does the
Zaslon radar (the first Soviet-made airborne digital computer, designed in 1972 by the Soviet Research Institute of Computer Engineering (NICEVT, currently
NII Argon). It is produced at a
Chișinău plant originally named "50 Years of the USSR". The vehicles of Buk-M2 (Buk-M2E) missile system use a slightly upgraded version of Argon-A15K. This processor is also used in such military systems as
anti-submarine defence Korshun and
Sova, airborne radars for
MiG-31 and
MiG-33, mobile tactical missile systems
Tochka,
Oka and
Volga. Currently, Argons are upgraded with the Baget series of processors by NIIP.
Basic missile system specifications • Target acquisition (by TAR 9S18M1, 9S18M1-1) • Range: • Altitude: • Firing groups in one battalion: up to 6 (with one command post) • Firing groups operating in a sector • 90° in azimuth, 0–7° and 7–14° in elevation • 45° in azimuth, 14–52° in elevation • Radar mast lifting height (for TAR 9S36): • Reloading of 4 missiles by TEL from itself: around 15 minutes • Combat readiness time: no more than 5 minutes • Kill probability (by one missile): 90–95% • Target engagement zone • Aircraft • Altitude: • Range: •
Tactical ballistic missiles • Altitude: • Range: • Sea targets: up to • Land targets: up to The system is estimated to have a 70% to 93% probability of destroying a targeted aircraft per missile launched (over 85% of Tomahawks in Syria). In 1992, the system was demonstrated to be capable of intercepting
Scud missiles and large
rocket artillery.
Operation The Buk is a mobile, radar-guided surface-to-air missile (SAM) missile system with all four main components – acquisition and targeting radars, a command element, missile launchers, and a logistics element – mounted on tracked vehicles. This allows the system to move with other military forces and relocate to make it a more difficult target to find than a fixed SAM system. • The acquisition radar component (several variants have differing capabilities) allows the system to identify, track and target selected targets. • The command component is intended to discern "friendly" military aircraft from foes (
IFF), prioritise multiple targets, and pass radar targeting information to the missile launchers. • The missile launcher component can carry a variety of missiles (as listed below) and may be able to engage more than one target simultaneously. • The logistics component carries additional (reload) missiles and provides other supplies and parts for the system and the operators. In general, the system identifies potential targets (radar), selects a particular target (command), fires a missile (launcher) at the target, and resupplies the system (logistics). The missiles require a radar lock to initially steer the missile to the target until the missile's onboard radar system takes over to provide final course corrections. A proximity fuse aboard the missile determines when it will detonate, creating an expanding fragmentation pattern of missile components and warhead to intercept and destroy the target. A proximity fuse improves the "probability of kill" given the missile and target closure rates, which can be more than (or more than ). Alternatively, the command component may be able to remotely detonate the missile, or the onboard contact fuse will cause the warhead to detonate. The most capable radar, assuming it has a line of sight (no terrain between the radar and the target), can track targets (depending on size) as low as and as far as . The most capable missile can hit targets as far as and more than in altitude. Since the introduction of the Buk in the 1970s, the capabilities of its system components have evolved, which has led to different nomenclature and nicknames for the components' variants. The Buk has also been adapted for use on naval vessels.
Integration with higher level command posts The basic
command post of the Buk missile system is 9С510 (9K317 Buk-M2), 9S470M1-2 (9K37M1-2 Buk-M1-2) and 9S470 (Buk-M1) vehicles, organising the Buk system into a battery. It is capable of linking with various higher level command posts (HLCPs). As an option, with the use of HLCP, the Buk missile system may be controlled by an upper level command post system
9S52 Polyana-D4, integrating it with S-300V/
S-300VM into an air defence brigade. Also, it may be controlled by an upper level command post system 73N6ME "Baikal-1ME" together with 1–4 units of
PPRU-M1 (PPRU-M1-2), integrating it with SA-19 "Grison" (
2K22 Tunguska) (6–24 units total) into an air defence brigade, as well as SA-10/20 and SA-5 Gammon and SA-2 Guideline and SA-3 Goa and Air Force. "Senezh" is another optional command post for a free mixing of any systems. In addition to mixing their potential, each of the air defense system with the aid of Senezh can become part of another air defence system (missile's / radar's / targeting information). The system works automatically. But for the full realisation of all functions, a Senezh-control system need various other monitoring systems for air defence and air force. Otherwise a Senezh system will work as a command centre, but not within a free association.
Naval versions 3S90 "Uragan" / M-22, or for export "Shtil" . . VLS launched "Shtil" version also available. The 3S90 "Uragan" (;
hurricane) is the naval variant of the 9K37 "Buk" and has the NATO reporting name "Gadfly" and US DoD designation SA-N-7, it also carries the designation M-22. The export version of this system is known as "Shtil" (;
still). The 9М38 missiles from the 9K37 "Buk" are also used on the 3S90 "Uragan". The launch system is different with missiles being loaded vertically onto a single arm trainable launcher, this launcher is replenished from an under-deck magazine with a 24-round capacity, loading takes 12 seconds to accomplish.
3S90 "Ezh" The modernised version of the 3S90 is the 9K37M1-2 (or 9K317E) "Ezh", which carries the NATO reporting name "Grizzly" or SA-N-12 and the export designation "Shtil". It uses the new 9M317 missile. In 1997, India signed a contract for the three Project 1135.6 frigates with "Shtil". Later, when the decision was made to modernise it with a new package of hardware & missiles, the name changed to "Shtil-1".
3S90M, or for export "Shtil-1" In 2004, the first demonstration module of the new 9M317M (export 9M317ME) missile was presented by
Dolgoprudniy Scientific and Production Plant for the upgraded 3S90M / "Shtil-1" naval missile system (jointly with
'Altair'), designed primary for use on warships. It has 2 styles of launchers, a single-rail launcher and vertical launch system. For single-rail launcher, each launcher consists of 24 missiles and a maximum of 4 launchers can be used together, while for vertical launch system, each launcher consists of 12 missiles and a maximum of 12 launchers can be used together. Old systems Uragan, Ezh and Shtil could be upgraded to Shtil-1 by replacing the launcher module inside the ship. It has a range of 32 km for rail launcher 50 km for VLS launcher. The reaction time is 10–19 seconds for single-rail launcher and 5–10 seconds for vertical launch system, and there are various differences in missile characteristics for both launcher styles. The interval between starts is less 2 seconds. To protect against boats, helicopters, aircraft, anti-ship missiles. The first Shtil-1 systems were installed into ships exported to India and China, specifically
Talwar-class frigates and
Type 052B destroyers. It is also in service of the
Russian Navy, specifically
Admiral Grigorovich-class frigates. ==Operational history==