Which 2 1/2" nozzle tip is standard on the stack loads on VFD front line engines?

The standard nozzle tip size for stack loads on Vancouver Fire Department (VFD) front line engines is 1 1/8 inches. This size is chosen because it strikes a balance between flow rate and pressure, allowing for effective firefighting operations while still being manageable for firefighters to handle.

A 1 1/4 inch nozzle tip would increase the flow significantly but may not be as practical, as it can be heavier and more difficult to operate under pressure. The 2 1/2 inch tip is generally utilized for larger supply lines and is not suited for the smaller stack loads that are typically employed in routine operations. The 1 1/2 inch tip would provide an adequate flow, but it may not achieve the same level of performance as the 1 1/8 inch tip when it comes to optimizing the balance between flow rate and control during firefighting efforts, especially in high-pressure scenarios.

Thus, the 1 1/8 inch nozzle tip is the standard choice for the VFD, designed to meet the specific operational requirements of urban firefighting efficiently.