Engine Any ground vehicle providing specified levels of pumping, water and hose capacity.
Engine Crew Firefighters assigned to an engine. The Fireline Handbook defines the minimum crew makeup by engine type.
Equilibrium Moisture Content Moisture content that a fuel particle will attain if exposed for an infinite period in an environment of specified constant temperature and humidity. When a fuel particle reaches equilibrium moisture content, net exchange of moisture between it and the environment is zero.
