Infantry Weapons

TS-50 anti-personnel mine

Also known as
  • TS/50
  • TS 50
  • TS-50 mine
  • T/79
  • T-79
  • T/7931
  • Mine Type 79
  • MAT-79
  • YM-1
  • YM-1B
  • YM-1-B
  • YM-1(B)

The TS-50 is an Italian minimum-metal blast anti-personnel mine built around a small pressure-actuated plastic body and pneumatic fuze. The record covers the Italian TS/50 baseline and closely documented T/79 and YM-1 copy designations, with conflict-use evidence from Afghanistan, Iraqi Kurdistan, Nagorno-Karabakh, Syria, and the Russia-Ukraine War's Donbas supply trail.

Role in Conflicts

Side
Iraq

Kurdistan24 reporting with Mines Advisory Group context describes Iran-Iraq War-era Iraqi Army minefields in the Kurdistan Region and says the Italian mines found in Biwrey include VS-50 anti-personnel blast mines and the later TS-50.

Side
Russia

A Ukrainian EOD handbook identifies the YM-1 as an Iranian-manufactured TS-50 and says Syrian-procured YM-1 mines began moving to DPR and LPR forces through Russia in November 2017; the row therefore covers the copied YM-1 branch rather than Italian TS-50 stocks.

Role details
Profile / Specs

Profile

Origin
Italy
Type
Minimum-metal blast anti-personnel mine
Service note
Cold War export-era anti-personnel mine encountered in legacy minefields
Designer
Tecnovar Italiana SpA
Designed
1970s
Unit cost
Not publicly reported
Produced
TS-50/T/79 assembly and Tecnovar TS-50 plastic-parts production reported from 1979 to 1993; Tecnovar bankruptcy adjudicated on 1997-11-03
Number built
Not publicly reported

Specifications

Diameter
92 mm in Italy's Mine Ban Treaty reporting; 90 mm in CISR rows for TS-50/YM-1
Height
45 mm
Weight
206 g in Italy's Mine Ban Treaty reporting; 186 g in CISR rows for TS-50/YM-1
Explosive fill
15 g T4/RDX in Italy's Mine Ban Treaty reporting; CISR lists 50 g RDX for TS-50/YM-1 and 50 g TNT for T/79
Fuzing
Pressure-operated mechanical blast mine; METIS describes a pneumatic/bladder-based fuze intended to resist blast effects
Body and detectability
Plastic-bodied low-metal/minimum-metal mine; Italy lists TS/50 as undetectable and IMAS says YM-1(B) should be treated as minimum-metal for detection
Deployment
Hand-emplaced or scatterable; ordnance references describe helicopter or ground-vehicle dispenser use for TS-50-family mines
Clearance resistance
Designed to resist blast overpressure and common explosive countermeasure techniques
Designation Notes

Open mine-action and Landmine Monitor sources use TS/50 or TS-50 for the Italian Tecnovar mine, while treating Egypt's T/79/MAT-79 and Iran's YM-1/YM-1(B) as related local-production or copy designations. Some references compare the copies to the visually similar VS-50, so the notes below keep the source-specific caveat visible.

T/79 and MAT-79

Landmine Monitor describes Egyptian T/79 scatterable or hand-emplaced plastic blast mines as copies of the Italian TS-50. Human Rights Watch separately says the Egyptian Army renamed TS-50 mines as Mine Type 79 and exported them as MAT-79.

Sources: Landmine Monitor Report 1999; Exposing the Source.

YM-1

IMAS describes the Iranian-produced YM-1 as a copy of the Italian Tecnovar-produced TS-50, and CISR lists YM-1 as a TS-50 copy with similar 90 mm by 45 mm dimensions.

Sources: IMAS YM-1(B) Technical Note; CISR: Munitions Reference Guide.

YM-1(B)

IMAS treats YM-1(B) as a YM-1 variant with the same casing, pressure-plate markings, and an added bottom switch described as a safety mechanism rather than a confirmed antihandling device.

Source: IMAS YM-1(B) Technical Note.

Broader Mine Class

The TS-50 is one specific anti-personnel blast mine model inside the broader landmine class.

Compatible itemItem typeCompatibility evidence
Landmine, Explosive ground mine, Infantry WeaponsLandmineAnti-personnel blast mine

Reference sources describe the TS-50/YM-1 pattern as a pressure-actuated blast anti-personnel landmine, while the generic Landmine entry covers the broader mine class.

Sources: Italian Landmine, APERS, TS-50, CISR: Munitions Reference Guide

Timeline

TS-50 anti-personnel mine Key Events

  1. Egyptian assembly begins

    Landmine Monitor reports that TS 50 mines were assembled in Egypt from 1979 onward with Tecnovar involvement and sold under the T/79 designation.

    Sources: Landmine Monitor Report 1999, Exposing the Source

  2. Tecnovar TS-50 plastic-parts period reported

    Landmine Monitor quotes Italy's UN response stating that Tecnovar manufactured plastic parts for yellow TS 50 anti-personnel mines during the 1980-1993 period.

    Sources: Landmine Monitor Report 1999

  3. Tecnovar bankruptcy adjudicated

    Italy's Mine Ban Treaty reporting states that Tecnovar had ceased activity and records bankruptcy adjudication on 3 November 1997.

    Sources: Italy Article 7 Report for 2022

  4. IMAS YM-1(B) note amended

    The IMAS technical note on YM-1(B) identifies it as a YM-1 variant and traces YM-1 back to the Italian Tecnovar TS-50.

    Sources: IMAS YM-1(B) Technical Note

  5. YM-1 supply to DPR and LPR reported

    A Ukrainian EOD handbook says Syrian-procured YM-1 mines began moving to DPR and LPR forces through Russia in November 2017.

    Sources: Sappers YM-1 Mine Handbook

Media
Related Weapon Systems
MON-50, Directional fragmentation antipersonnel mine, Infantry WeaponsInfantry WeaponsMON-50Directional fragmentation antipersonnel mineThe MON-50 is a Soviet directional fragmentation antipersonnel mine broadly comparable in role to the M18 Claymore, with a plastic body, folding legs, and a forward fragmentation pattern. It can be command-detonated or configured with tripwire and other fuzing, making it a compact infantry obstacle and ambush munition. Direct monitoring sources document MON-50 use by Russian or Russian-aligned forces in eastern Ukraine, the full-scale Russia-Ukraine War, and the 2019-2020 Tripoli fighting in Libya.
MON-100, Directional anti-personnel fragmentation mine, Infantry WeaponsInfantry WeaponsMON-100Directional anti-personnel fragmentation mineThe MON-100 is a Soviet/Russian directional anti-personnel fragmentation mine in the larger end of the MON family. Technical references describe a circular metal-bodied, stake- or fixture-mounted mine with a 2 kg TNT charge, roughly 400 steel fragments, and command or tripwire-capable initiation. Monitoring groups identify MON-100 use by Russian forces in the 2014 Russia-Ukraine War and by Russian mercenaries around Tripoli during the 2014 Second Libyan Civil War.
MON-series anti-personnel mine, Directional fragmentation anti-personnel mine family, Infantry WeaponsInfantry WeaponsMON-series anti-personnel mineDirectional fragmentation anti-personnel mine familyThe MON series is a Soviet/Russian family of directional fragmentation anti-personnel mines, including MON-50, MON-90, MON-100, and MON-200 patterns that project preformed fragments across a defined sector. Monitoring groups identify the family in Russian mine warfare in Ukraine and in Russian-linked Tripoli minefields in Libya, while the Nagorno-Karabakh record is narrower and rests on postwar MON-50 clearance reporting.

Sources