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Italy / Cold War

SIDAM 25

Italy’s SIDAM 25 placed four 25 mm cannon and optical/laser fire control on an M113-derived chassis to provide very-short-range air defense for mechanized and armored units.

SIDAM 25
SIDAM 25. Primary reference image for this archive profile. Source date: 2010-01-23 14:17:34.italian army; CC BY 2.5Image source
Roletracked very-short-range gun air defense
Main weapon / systemfour 25 mm Oerlikon KBA cannon
Platform / layoutM113A1-derived chassis
MediaPrimary image integrated

Development and design

SIDAM used the widespread M113A1 chassis and a new turret carrying four 25 mm cannon. Its fire-control suite emphasized optical sighting, laser ranging, and automatic television tracking rather than an onboard search radar. 1, 2

Operational use

The Italian Army fielded the system to defend mechanized and armored units at very short range, exploiting M113 commonality for mobility, training, and sustainment. 1, 2

Role and significance

SIDAM is a strong example of chassis reuse across battlefield roles: a personnel carrier became a specialized air-defense gun platform through a mission turret and sensor package. 1, 2

Sources and further reading

Representative source set used for this profile. Primary image source and reuse terms are listed with the image.

  1. Italian Army, SIDAM 25
  2. SIDAM 25 overview