Quint51 is a quintuple combination pumper or quint is a fire service apparatus that serves the dual purpose of an engine and a ladder truck. The name quint is derived from the Latin prefix quinque-, meaning five, and refers to the five functions that a quint provides: pump, water tank, fire hose, aerial device, and ground ladders.
A heavy rescue vehicle is a type of specialty firefighting or emergency medical services apparatus. They are primarily designed to provide the specialized equipment necessary for technical rescue situations such as traffic collisions requiring vehicle extrication, building collapses, confined space rescue, rope rescues and swiftwater rescues. They carry an array of special equipment such as the Jaws of life, wooden cribbing, generators, winches, hi-lift jacks, cranes, cutting torches, circular saws and other forms of heavy equipment unavailable on standard trucks. This capability differentiates them from traditional pumper trucks or ladder trucks.