Final answer:
Technical orders for maintaining Air Force military systems are referred to as Technical Manuals (TM), which assist personnel in keeping systems operable and properly maintained.
Step-by-step explanation:
Technical orders (TO) that cover the processes of installing, operating, troubleshooting, repairing, calibrating, servicing, or handling Air Force military systems are known as Technical Manuals (TM). This documentation is essential for personnel to ensure that these systems are properly maintained and operated to meet the required standards and specifications. The correct answer to your question is option 1) Technical Manuals (TM).