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.
Armored Air Defense · Self-propelled anti-aircraft gunSistema Italiano Difesa Aerea Mobile 25 · SIDAM 25Primary image verified
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.