Exercise extreme caution.
If your aircraft is on the ground, a steady red light from the control tower light gun means STOP. If you are airborne, a steady red light means to give way to other aircraft, and continue circling.
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The power supply unit must be toasted.
It is a warning light to pilots in poor visibility that there is a tall building there
It means get off the runway now, or, if flying, do not land here.
Exercise extreme caution
Signal Tower Museum was created in 1813.
When Tower signals a vehicle on the runway with a flashing red light, it indicates that the operator must immediately stop and not proceed further. The operator should then radio the Tower to seek clarification and instructions on how to proceed safely. This protocol ensures the safety of both the vehicle and any aircraft in the vicinity. Following these procedures is crucial for maintaining a safe operational environment at the airfield.
If you mean the light gun signals from the control tower- to vehicles, and aircraft on the ground, get off the runway. For aircraft in flight, runway is unsafe, do not land.
Ground - Cleared for Takeoff. Air - Cleared to Land.
The friend sees the 2 lanterns from the church glimmer and then a gleam of light which is the signal light.