What is the primary function of a mortar in a fireworks display?

The primary function of a mortar in a fireworks display is to fire aerial devices into the air. Mortars are essentially tubes that provide the necessary launch mechanism for aerial shells. When the fuse is ignited, a chemical reaction occurs that generates gas pressure inside the mortar. This pressure propels the shell upwards into the sky, allowing it to reach the desired height before exploding to create visual effects.

The integrity and design of the mortar are critical for ensuring that the aerial shells are safely and effectively launched at the proper angles and heights. A well-designed mortar system helps to ensure a safe and successful fireworks display by controlling the trajectory of the shells as they ascend.