In flight ops, what does the color red signify?

In flight operations, the color red is primarily used as a signal to indicate hazardous conditions or immediate action required. This is associated with the command to start or stop engines, often seen on the flight deck or in communication with pilots and ground crew. The use of red in this context enhances safety by ensuring everyone understands that starting or stopping engines involves significant risk and must be conducted with caution, clear communication, and appropriate procedures.

When it comes to the operation of aircraft, recognizing the color red as a signal for engine actions helps maintain operational efficiency and minimizes accidents during critical phases of flight operations. The necessity to take immediate actions related to engine functions underscores the importance of clearly defined signals in high-stakes environments such as naval aviation.