Firefighting helicopter for city concepts

摘要

A firefighting helicopter having firefighting apparatus positioned above the helicopter rotor blades 4, allowing fire extinguishing fluid such as water, to be directed under pressure onto a building for example. The apparatus has four foldable tubal blades 3 mounted to a telescopic structure 2 that is positioned within the helicopter rotor mast 1. When not in use, the foldable tubal blades are stored within the helicopter rotor mast. When the telescopic structure 2 extends, the foldable tubal blades extend from within the rotor mast, into a used position. In use, the tubal blades are static and are supplied with water, under pressure, from a tank positioned inside the helicopter, wherein the water flows from a nozzle (8, fig 2) at the end of the blades 3. In use, water only flows through 2 of the tubal blades at any one time, allowing the direction of the water to be controlled; wherein the user may change which blades are in use, according to the position of the helicopter to the building. As an alternative to water, other types of fire extinguishers can be used.