What makes a fire engine squad engine?

A fire engine is designated a "squad engine" when it combines the typical functions of a fire engine (pump, water tank, hose) with additional equipment and capabilities focusing on rescue and specialized operations. It's not a universally standardized term, and the specific equipment carried can vary by fire department, but generally a squad engine carries a broader range of tools and equipment beyond basic firefighting, including:

* Rescue tools: Jaws of Life, hydraulic spreaders, cutters, extrication equipment for vehicle accidents.

* Technical rescue equipment: Specialized tools for confined space rescue, high-angle rope rescue, trench rescue, etc.

* Additional tools and supplies: More advanced first aid and medical supplies, specialized hand tools, power saws, lighting, ventilation equipment.

Essentially, a squad engine acts as a versatile first-response vehicle capable of handling a wider range of emergencies than a standard engine, bridging the gap between a basic fire engine and a dedicated rescue unit. It's designed to be a more self-sufficient unit in situations requiring immediate response and a variety of skills and tools.