9M117 Bastion

"AT-10" redirects here. For the aircraft, see AT-10 Wichita.

A 9M117 missile

The 9M117 Bastion is a Russian laser beam-riding anti-tank missile. It is used in a number of separate weapon systems, including the 9K116-1 Bastion missile system (AT-10 Stabber), 9K118 Sheksna (AT-12 Swinger), Kastet and the 3UBK12 fired from the BMP-3. The 100 mm projectile entered service in 1981.^[1]

Development

The 9K112 Kobra (AT-8 Songster) was the first Soviet tube fired anti-tank missile to enter service; however, it was only deployed in limited numbers to front line units. Development work began in the late 1970s on a third generation of guided projectiles that would use laser guidance rather than radio command links. The guidance system was developed by Igor Aristarkhov, and the missile was developed by Petr Komonov.^[2] The Bastion was developed firstly as a relatively cheap missile fired from towed MT-12 100 mm smoothbore AT-guns.^[1] The 9M117 missile was part of the 3UBK10 round and the whole weapon system was designated 9K116 Kastet. A laser guidance device was seated on a tripod next to the gun.^[1] The system was commissioned in 1981.^[1]

During development of the 9K116 system, it was recognized that it could enhance the long range firepower of the older T-55 and T-62 tanks. The system for the T-55's D-10T 100 mm rifled gun was designated 9K116-1 Bastion (3UBK10-1 round); and for the T-62's U-5TS 115 mm smoothbore gun, 9K116-2 Sheksna (3UBK10-2 round).^[3] The 9M117 missiles were identical, as in the towed version; however, the 115 mm version had additional guiding rings.^[3] They were commissioned in 1983.^[3] Then, the 9K-116-3 system was developed for the 100 mm rifled^[4] gun of the BMP-3 infantry fighting vehicle, commissioned in 1987. Similar systems, with larger caliber 9M119 Svir missiles, were developed for the 125 mm guns of the T-72 and T-80 tanks.

Description

The 100 mm round resembles a normal 100 mm anti-tank round, and is loaded and fired in the same fashion. The round uses a reduced explosive charge to launch the projectile out of the barrel of the gun at around 400 to 500 m/s. After leaving the gun barrel, a small cover falls away from the window on the rear of the missile. The rocket motor ignites 1.5 seconds after firing the missile, and it burns for 6 seconds.

The projectiles use laser guidance. A cone of laser light divided into sectors is projected from the launching tank/vehicle/gun, each sector having a different frequency or modulation. The missile has a small window in the rear with a sensor to detect the modulation of the light. Using this modulation, the missile steers itself, maintaining its position in the cone. The laser beam-riding guidance system is smaller than a radio command one, and cheaper and simpler than semi-active laser guidance. The missile is also not prone to radio or optical jamming.^[1] On the other hand, a target has to be tracked by laser sight all the time, and the system can not be reliably used on the move.^[3]

The missile's flight time to 4,000 meters is approximately 12 seconds. After 26 to 41 seconds, the missile self-destructs.

Variants

Ammunition firing the 9M117 Bastion missile; average armour penetration 550 mm Rolled homogeneous armour equivalency after ERA^[5]

100 mm 3UBK10 (MT-12)
100 mm 3UBK10-1 (T-55)
115 mm 3UBK10-2 (T-62)
100 mm 3UBK10-3 (BMP-3)

Ammunition firing the 9M117M Kan Tandem HEAT missile; average armour penetration 600 mm RHAe after ERA^[6]

100 mm 3UBK10M (MT-12)
100 mm 3UBK10M-1 (T-55)
115 mm 3UBK10M-2 (T-62)
100 mm 3UBK10M-3 (BMP-3)

Ammunition firing the 9M117M1 Arkan Tandem HEAT missile with extended range of 100–6,000 m; average armour penetration 750 mm RHAe after ERA

100 mm 3UBK23 (MT-12)
100 mm 3UBK23-1 (T-55)
115 mm 3UBK23-2 (T-62); average armour penetration 850 mm RHAe after ERA
100 mm 3UBK23-3 (BMP-3); firing Range, 100-5,500 m

Sources

Angelskiy, R., Otechestvennye protivotankovye kompleksy ("Domestic anti-tank systems"), Moscow, 2002, ISBN 5-17-011744-2 (Russian)

Footnotes

1 2 3 4 5 Angelskiy, R. (2002), p. 111-115
↑ "Soviet / Russian anti-tank missiles" (in Chinese). SINA Corporation. 2005-08-29. Retrieved 2011-09-20.
1 2 3 4 Angelskiy, R. (2002), p. 117-119
↑ http://www.kurganmash.ru/en/turrets/turret_bmp3u/
↑ http://www.tulamash.ru/prod_3ubk10.htm
↑ http://www.tulamash.ru/prod_3ubk10m.htm

External links

Wikimedia Commons has media related to 9K116 Kastet.

NATO designation for Russian and former Soviet Union missiles

Air-to-air missiles
(complete list)

Air-to-surface missiles
(complete list)

Anti-tank missiles
(complete list)

Surface-to-air missiles
(complete list)

Ground based	SA-1 Guild SA-2 Guideline SA-3 Goa SA-4 Ganef SA-5 Gammon SA-6 Gainful SA-7 Grail SA-8 Gecko SA-9 Gaskin SA-10 Grumble SA-11 Gadfly SA-12 Gladiator/Giant SA-13 Gopher SA-14 Gremlin SA-15 Gauntlet SA-16 Gimlet SA-17 Grizzly SA-18 Grouse SA-19 Grison SA-20 Gargoyle SA-21 Growler SA-22 Greyhound SA-23 Gladiator/Giant SA-24 Grinch SA-25 Morfey S-350E

Naval based	SA-N-1 Goa SA-N-2 Guideline SA-N-3 Goblet SA-N-4 Gecko SA-N-5 Grail SA-N-6 Grumble SA-N-7 Gadfly SA-N-8 Gremlin SA-N-9 Gauntlet SA-N-10 Grouse SA-N-11 Grison SA-N-12 Grizzly SA-N-14 Grouse SA-N-20 Gargoyle

ABMs	ABM-1 Galosh ABM-3/53T6 Gazelle S-500

Surface-to-surface missiles
(complete list)

Ground based	SS-1 Scunner/SS-1b/c/d Scud SS-2 Sibling SS-3 Shyster SS-4 Sandal SS-5 Skean SS-6 Sapwood SS-7 Saddler SS-8 Sasin SS-8B Sasin 2 SS-9 Scarp SS-10 Scrag SS-11 Sego SS-12 Scaleboard SS-X-13 Savage SS-13 Savage SS-14 Scamp/Scapegoat SS-15 Scrooge SS-16 Sinner SS-17 Spanker SS-18 Satan SS-19 Stiletto SS-20 Saber SS-21 Scarab SS-22 Scaleboard SS-23 Spider SS-24 Scalpel SS-25 Sickle SS-26 Stone SS-27 Sickle B SS-28 Saber 2 SS-29 Yars SS-X-30 Satan 2 SS-X-31 Rubezh SS-X-32Zh Barguzin

Naval based	SS-N-1 Scrubber SS-N-2 Styx SS-N-3c Shaddock SS-N-3a Shaddock 3b Sepal SS-N-4 Sark SS-N-5 Sark/Serb SS-N-6 Serb SS-N-7 Starbright SS-N-8 Sawfly SS-N-9 Siren SS-N-12 Sandbox SS-NX-13 SS-N-14 Silex SS-N-15 Starfish SS-N-16 Stallion SS-N-17 Snipe SS-N-18 Stingray SS-N-19 Shipwreck SS-NX-20 Sturgeon SS-N-21 Sampson SS-N-22 Sunburn SS-N-23 Skiff R29RM SS-N-23A Skiff SS-N-23B Skiff SS-NX-24 Scorpion SS-N-25 Switchblade SS-N-26 Strobile SS-N-27 Sizzler SS-N-30A 3M-14 SS-NX-28 SS-N-29 SS-N-32 SS-NX-30? SS-NX-34

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