Abstract: Helicopter fire fighting apparatus includes a large quick-connect and disconnect fire-fighting fluid tank, a pump mounted near the engine, a fire fighting control station on the rear of the helicopter and a nozzle broom swiveled near the control station. A helicopter lands, quickly drops an empty tank and hooks up a full tank before rising to the proper location to fight a fire, such as in an office building. The boom breaks windows for access to the fire, and a hardened water-driven projectile may be propelled from the nozzle boom to break a window.