What are the two fundamental classes of flares?

The correct answer identifies the two fundamental classes of flares as pyrotechnic and pyrophoric.

Pyrotechnic flares are designed to produce a bright light and are commonly used for signaling, illuminating areas, and other applications where a strong visual indicator is required. They work through a chemical reaction that generates intense heat and light, which makes them effective in a variety of environments, particularly for military and emergency signaling purposes.

On the other hand, pyrophoric materials ignite spontaneously upon exposure to air, which can be utilized in certain flare designs to create a distinctive effect or signal. This class of flares can enhance tactical advantages by providing immediate ignition without the need for an external ignition source, contributing to their effectiveness in specific operations.

Understanding these classifications is essential in the field of electronic warfare and military operations, as the proper use and deployment of flares can significantly impact mission success and environmental safety.