What does the term 'fly system' refer to?

• A. The system to control stage lighting color.
• B. The safety plan for elevating equipment.
• C. The rigging system that raises and lowers battens and attached loads.
• D. The mechanism to adjust sound levels.

Answer: (C)

The fly system is the rigging setup that moves scenery and other loads above the stage by raising and lowering battens. It uses pulleys, lines, and either counterweights or motors to balance and lift the batten and whatever is attached to it, allowing quick, controlled scene changes. This is distinct from systems used to change lighting color or adjust sound levels, and from a general safety plan—the term specifically refers to the mechanism that physically flies items in and out of view on stage. Because loads are heavy and operate overhead, proper balancing, hardware, and training are essential to keep everyone safe.