What is the burn time for the night end of the MK-124 distress signal?

• A. 10 Second burn time
• B. 20 Second burn time
• C. 30 Second burn time
• D. 60 Second burn time

Answer: (B)

In night signaling, you want a bright, lasting beacon that stands out against darkness long enough for rescue teams to spot you. The MK-124 distress signal uses a two-end design: a day end for daylight visibility and a night end that emits a red flare. The burn time of the night end is twenty seconds, which provides a sustained, recognizable signal without excessive ballast or handling risk. Shorter durations would reduce visibility at range, while longer durations aren’t part of the device’s standard specification. So the night-end burn time is twenty seconds.