When referring to hose, what does the "L" stand for in "LDH"?

In the context of fire fighting, "LDH" stands for "Large Diameter Hose." The "L" in this terminology specifically indicates that the hose has a larger diameter compared to standard hoses used in various applications. Large diameter hoses are designed to facilitate the rapid transport of large volumes of water, making them particularly useful for fire suppression efforts in structural fires and for filling tankers or other apparatus quickly.

The emphasis on "large" is crucial because it highlights the hose's capability to carry high flow rates, which are essential in emergency situations where time is critical and water supply needs to be maximized. Understanding the terminology in firefighting equipment, such as the specification of "large," allows firefighters to make informed decisions about the tools and resources at their disposal during operations.