How deep must mortars be buried for safety?

For safety during fireworks displays, mortars must be buried to a depth of at least 2/3 of their length. This requirement serves several critical safety functions. By burying the mortars deeply, it helps to stabilize them during firing, reducing the risk of tipping or falling, which can lead to misfires or unintended trajectory paths. Additionally, deeper burial can help contain any debris or fragments created during the firing process, minimizing the risk to spectators and nearby structures.

The design of fireworks and the forces involved when they are ignited necessitate this level of safety precaution. When mortars are secured at this depth, it ensures that they withstand the stresses placed upon them during operation, offering a more controlled and safer display environment. Proper adherence to this guideline is essential for promoting safety in any fireworks operation.