Glossary of military abbreviations – Article Study» Article Study …
IRU Inertial Reference Unit IS internal security. ISD In Service Date ISGU Integrated Sight and Guidance Unit ISR Intelligence Surveillance and Reconnaissance ISU Integrated Sight Unit ISV Internal Security Vehicle ITAS Improved Target Acquisition System …. OTA overflight top attack. OTEA Operational Test and Evaluation Agency (US) P P How pack howitzer. P3I Pre-Planned Product Improvements PAR pulse acquisition radar. PAT power-assisted traverse. PC Personal Computer …
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Glossary of military abbreviations – Article Study» Article Study …