9K111 Fagot

The 9K111 Fagot (Russian: Фагот; "bassoon") is a second-generation tube-launched semi-automatic command to line of sight (SACLOS) wire-guided anti-tank missile system of the Soviet Union for use from ground or vehicle mounts. The 9K111 Fagot missile system was developed by the Tula KBP Design Bureau for Instrument Building. 9M111 is the designation for the missile. Its NATO reporting name is AT-4 Spigot.

Fagot
9K111 Fagot in Russian service
TypeAnti-tank weapon
Place of originSoviet Union
Service history
In service1970–present
Used bySee Operators
Wars
  • Vietnam War
  • Soviet–Afghan War
  • Kargil War
  • War in Afghanistan
  • Iran–Iraq War
  • Western Sahara War
  • Second Chechen War
  • Russo-Georgian War
  • War in Donbass
  • Iraq War
  • Syrian Civil War
  • Iraqi Civil War (2014–2017)
  • Yemeni Civil War (2015–present)
    Saudi-led intervention in Yemen
  • Conflict in Najran, Jizan and Asir
  • 2020 Nagorno-Karabakh conflict
  • 2022 Russian invasion of Ukraine
Production history
DesignerTula Machinery Design Bureau (Tula KBP)
Designed1962
Produced1970
VariantsSee Models
Specifications
Mass
  • 12.5 kg (28 lb) (missile weight)
  • 22.5 kg (50 lb) (9P135 launching post)
Length1,100 mm (3 ft 7 in)
Diameter120 mm (4.7 in)

Action400 mm versus RHA or 200 mm toward armour inclined at 60°
Rate of fire3 rds / min
Muzzle velocity
  • 80 m/s (180 mph; 290 km/h) at launch
  • 186 m/s (420 mph; 670 km/h) in flight speed
Effective firing range70–2,500 m (230–8,200 ft)
WarheadHigh-explosive anti-tank (HEAT) warhead
Warhead weight1.7 kg (3.7 lb)

Guidance
system
SACLOS wire-guided missile
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