What is the maximum airspeed limit of the Search Light while it's extended?

What is the maximum airspeed limit of the Search Light while it's extended?

• A. 180 knots
• B. 170 knots
• C. 150 knots
• D. 190 knots

Answer: (A)

Knowing the maximum airspeed with the Search Light extended is about staying within the equipment’s load and vibration limits. Extending the light adds drag and a cantilever load on its mounting, increasing the stresses on the light assembly and its connections. To prevent excessive bending, vibration, or fatigue of the mount and wiring, the system is certified to operate up to a specific speed. That’s why 180 knots indicated airspeed is the limit when the light is extended. Flying faster than that could push the loads beyond what the mount and wiring are designed to handle, risking damage or malfunction. The other options are either below the certified limit or exceed it.

Knowing the maximum airspeed with the Search Light extended is about staying within the equipment’s load and vibration limits. Extending the light adds drag and a cantilever load on its mounting, increasing the stresses on the light assembly and its connections. To prevent excessive bending, vibration, or fatigue of the mount and wiring, the system is certified to operate up to a specific speed. That’s why 180 knots indicated airspeed is the limit when the light is extended. Flying faster than that could push the loads beyond what the mount and wiring are designed to handle, risking damage or malfunction. The other options are either below the certified limit or exceed it.