What kind of signals might an aircraft use to indicate distress?

An aircraft in distress commonly utilizes a series of red flares or emergency lights as an effective means of signaling for help. Red flares are universally recognized as a signal of distress and can be seen from significant distances, especially in daylight or low-visibility conditions. The use of emergency lights, which may include strobes or rotating beacons, is also a critical aspect of alerting others to a situation requiring immediate assistance.

In aviation, these visual signals are prioritized because they provide a clear and unmistakable indication of an emergency. Other forms of distress signals may include the use of radio communications or specific light patterns, but the series of red flares and emergency lights is particularly effective for visual identification, making it a preferred method in emergency situations.