Air Defense

ZPU-4 anti-aircraft gun

The ZPU-4 is a Soviet quadruple 14.5 mm anti-aircraft gun built around four KPV/KPVT heavy machine guns on a four-wheel carriage. In Yemen, open-source reporting connects ZPU-4-armed technicals to anti-Houthi Giants Brigades forces, giving the Cold War gun a continued role as mobile low-altitude air defense and direct-fire support.

Conflict side
Yemeni government and coalition forces
Built by
V. A. Degtyarev Plant (ZiD); licensed production in China, Romania, and North Korea
Built in
Soviet UnionRussia, China, Romania, North Korea
ZPU-4 anti-aircraft gun, 14.5 mm quadruple towed anti-aircraft gun, Air Defense

Service History

In service
1949-present
Used by
Giants Brigades, Yemeni armed factions, Former Soviet and Warsaw Pact operators, Middle Eastern and African operators
Wars
Yemen Civil War

Production History

Designer
Soviet small-arms and anti-aircraft gun designers using the KPV/KPVT heavy machine gun family
Designed
Development began in 1945; accepted into Soviet service in 1949
Built by
V. A. Degtyarev Plant (ZiD); licensed production in China, Romania, and North Korea
Built in
Soviet UnionRussia, China, Romania, North Korea
Unit cost
Not publicly reported
Produced
Late 1940s onward, including licensed and derivative production
Number built
Not publicly reported
Variants
ZPU-4, Type 56, MR-4, PKM-4

Specifications

Caliber
14.5x114 mm
Armament
Four KPV/KPVT heavy machine guns on a four-wheel carriage
Crew
Five, according to common technical references
Weight
About 1,810 kg in travelling or firing configuration
Rate of fire
About 550-600 rounds per minute cyclic per gun; practical fire is lower
Effective anti-aircraft range
About 1,400-1,500 m against low-altitude air targets
Traverse and elevation
360-degree traverse; approximately -10 degrees to +90 degrees elevation

Conflict Usage

Yemen Civil War
Side: Yemeni government and coalition forcesRole: Technical-mounted low-altitude air defense and fire supportair defensecounter-uavstrike

Anti-Houthi Giants Brigades forces in Yemen were reported using technicals fitted with heavy weapons, including ZPU-4 anti-aircraft machine guns, during the Yemen Civil War; the available open source identifies the formation and weapon type but does not quantify the number of mounts.

ZPU-4 anti-aircraft gun Images

Related Weapon Systems

GDF-001 / GDF-002 anti-aircraft gun, Towed twin 35 mm anti-aircraft gun, Air DefenseAir DefenseGDF-001 / GDF-002 anti-aircraft gunTowed twin 35 mm anti-aircraft gunThe GDF-001 and GDF-002 are early Oerlikon GDF twin 35 mm towed anti-aircraft guns, usually paired with optical sights or Super Fledermaus/Skyguard radar control for point defense. In the Yemen Civil War record, open-source documentation places GDF-001/GDF-002 guns in the pre-war Yemeni Army inventory and available to Yemeni battlefield parties after the Houthi takeover, but does not support a precise engagement or shootdown claim.

Sources