What does the acronym ELT stand for in aviation?

The acronym ELT stands for Emergency Locator Transmitter. This device plays a critical role in aviation safety by helping to locate aircraft that have been involved in accidents or incidents. When activated, the ELT transmits a distress signal on a specific frequency, which can be received by search-and-rescue teams and satellites. This signal often contains important information such as the aircraft's location, which is vital for prompt and efficient response efforts.

ELTs are usually installed in aircraft and are designed to automatically activate upon significant impact or crash, although they can also be activated manually. Their functions are crucial during emergencies, as they significantly enhance the chances of locating and rescuing individuals involved in aviation accidents.

The other terms provided do not accurately describe a device used in aviation safety and do not have the same function or importance as the Emergency Locator Transmitter.