9K37 Buk
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| 9K37 Buk (NATO reporting name: SA-11 Gadfly) |
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|---|---|
 (NATO reporting name: SA-11 Gadfly) |
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| Basic data | |
| Function | Medium-range surface-to-air missile |
| Manufacturer | Tikhomirov/Lyulev |
| Entered service | 1979 |
| General characteristics | |
| Engine | |
| First stage | Solid fuel rocket booster |
| Second stage | Ramjet sustainer |
| Launch mass | 1,521 lb (690 kg) |
| Length | 18 ft (5.55 m) |
| Diameter | 1.31 ft (0.4 m) |
| Speed | Mach 3 |
| Range | 3-19 mi (4-30 km) |
| Service ceiling | 46,000 ft (14,000 m) |
| Warhead | 154 lb (70 kg) high explosive |
| Guidance | Semi-active radar homing |
| Fuzes | Radar proximity fuse |
| Launch platform | 9A310M1 TELAR |
The 9K37 Buk (Russian: 9К37 "Бук"; English: beech) is the successor to the well-regarded NIIP/Vympel 3M9 Kub (SA-6 "Gainful") medium-altitude, medium-range surface-to-air missile system. 9K37 is the GRAU designation of the system. Its NATO reporting name SA-11 Gadfly. It features improvements in number of missiles carried per TEL, range and altitude performance, missile speed, guidance accuracy and warhead potency. There is some interoperability between the two systems. The table below highlights the differences.
The 9K37 is designed to engage maneuverable aircraft such as jets, helicopters and cruise missiles. The export version of this system is known as "Gang" (Russian Ганг – Ganges).
Contents |
[edit] Missiles and Guidance
Each missile is 5.55 m (18 feet) long, weighs 690 kg (1521 lb) and carries a relatively large 70 kg (154 lb) warhead which is triggered by a radar proximity fuze. Propulsion is via a solid fuel rocket booster, the empty container at burnout forming the combustion chamber for a liquid fuel ramjet sustainer. This gives the missiles good range for their size as well as rapid initial acceleration.
The following kill probabilities are claimed:
- 0.6-0.9 against aircraft
- 0.3-0.7 against helicopters
- 0.4 against cruise missiles
The battery requires 5 minutes to set up before it is ready for engagement and can be ready for transit again in 5 minutes. Reaction time, from target tracking to missile launch, is 22 seconds.
| 3M9 "Kub" (SA-6) | 9K37 "Buk" (SA-11) | 9K37M "Buk-M1" (SA-11) | 9K37M1 "Buk-SAR" (SA-11) | 9K37M1-2 "Buk-M1-2" (SA-17) | |
| Introduced | 1966 | 1980 | 1984 | 1995 | 1998 |
| Missiles per TEL | 3 | 4 | 4 | 4 | 4 |
| Missile Weight | 599 kg (1321 lb) | 690 kg (1521 lb) | 690 kg (1521 lb) | 690 kg (1521 lb) | 710-720 kg (1565-1587 lb) |
| Engagement range | 3-24 km (2-15 miles) | 4-30 km (3-19 miles) | 3-35 km (2-22 miles) | 3-42 km (2-26 miles) | 3-50 km (2-31 miles) |
| Engagement altitude | 800-11000 m (2,600-36,000 ft) | 30-14000 m (100-46,000 ft) | 30-22000 m (100-72,000 ft) | 30-25000 m (100-82,000 ft) | 30-25000 m (100-82,000 ft) |
| Missile speed | (Mach) 2.8 | (Mach) 3 | (Mach) 3 | (Mach) 3 | (Mach) 3 |
| Max. target speed | (Mach) 2 | (Mach) 2.5 | (Mach) 4 | (Mach) 4 | (Mach) 4 |
| Simultaneous engagements | 1 | 2 | 6 | 6 | 6, in any direction |
[edit] Radar
The 9K37 utilises the 9S18 "Tube Arm"/9S18M1 "Snow Drift" (Russian: СОЦ 9C18 "Купол") 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 mi) away and even lower flying targets at ranges of around 10-20 km (6-12 mi). Snow Drift is mounted on a chassis similar to that of the TELARs. Fire Dome is a monopulse type radar and can begin tracking at the missile's maximum range (32 km/20 mi) and can track aircraft flying at between 15,000 and 22,000 m (50,000 to 72,000 ft) altitudes. It can guide up to three missiles against a single target. The 9K37 system supposedly has much better ECCM characteristics (i.e. is more resistant to ECM/jamming) than the 3M9 Kub system that it replaces. An optical tracking system with laser rangefinder is not standard but can be fitted.
The 9K37 system can also utilise the same 1S91 Straight Flush 25 kW G/H band continuous wave radar as the 3M9 Kub system.
The control post which coordinates communications between the surveillance radar(s) and the launchers is able to communicate with up to six TELs at once.
The SA-N-7 naval version utilises the MR-750 Top Steer D/E band surveillance radar with a maximum detection range of 300 km (186 miles) and the 3R90 Front Dome H/I band tracking and engagement radar with a maximum range of 30 km (19 mi).
[edit] Versions
The 3K90 M-22 Uragan' (Russian Ураган – hurricane) is the naval version of the Buk and has the NATO reporting name SA-N-7. The export version of this system is known as "Shtil" (Russian Штиль – still).
The SA-17 Grizzly/SA-N-12 is the next generation Buk system (Buk-M1-2).
[edit] Vehicles
The 9A39 reload vehicle for the 9K37 resembles the 9A310 TELAR but instead of a radar they have a crane for loading missiles. They are capable of launching missiles directly but require the cooperation of a Fire Dome-equipped TELAR for guidance. The Snow Drift is mounted on a similar chassis, as is the command vehicle. A reload vehicle can transfer its missiles to a TELAR in around 13 minutes and can reload itself from stores in around 15 minutes.
Each battery typically consists of a command vehicle, surveillance radar vehicle, six TELARs and six reload/launch vehicles.
[edit] Related Weapons
It has been suggested that the Novator KS-172 AAM-L, an extremely-long range air-to-air missile and possible anti-satellite weapon, is a derivative of the 9M37 Buk.
[edit] Buk-M1
The Buk-M1 Russian surface-to-air missile (SAM). It is a mobile system back-compatible with Kub. Two missiles can be launched simultaneously. The system is equipped with four missiles per launcher.
[edit] Statistics
- Mass: 690 kg
- Core diameter: 400 mm
- Length: 5.55 m
- Span: 1.10 m
- Maximum range: 30 km
- Guidance: Semi-active radar homing
- Maximum speed: 2,900 km/h
- Minimum range: 4 km
- Ceiling: 22,000 m
- Minimum engagement altitude: 25 m
- Setup time for mobile unit: 5 minutes
- Cleanup time for mobile unit: 5 minutes
[edit] History
Development of the Buk surface-to-air missile was completed in 1979. The overall 9K37 system was developed by NIIP Tikhomirov, a Russian weapons manufacturer. Both the Kub and Buk used self-propelled launchers developed by A.A. Rastrov. Finland already bought the system.
[edit] 9K37M Model
The 9K37M is an improved version of the Buk for use by the Russian military.
[edit] Statistics
- Other Designations: Buk-1M
- Mass: 690 kg
- Core diameter: 400 mm
- Length: 5.55 m
- Span: 1.10 m
- Maximum range: 32 km
- Boost Propulsion: Solid rocket, dual thrust
- Guidance systems: Semi active radar homing
[edit] 9K37M1 Model
The 9K37M1 is Russia's export version of the Buk.
[edit] Statistics
- Other Designations: Buk SAR
- Length: 5.49 m
- Maximum range: 30 km
- Guidance systems: Semi active radar homing
- Maximum speed: 3,950 km/h
- Minimum range: 3 km
- Ceiling: 22,000 m
- Minimum engagement altitude: 30 m
[edit] External links
[edit] References
- Federation of American Scientists page on SA-11 Gadfly
- Astronautix.com page on SA-11 Gadfly
- Wonderland.org.nz
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