Water alley
A water lane is a tactic used by the fire brigade to enable escape and rescue routes when there is a high level of flames. It was mainly used during the bombing raids in World War II and is characterized by a high use of materials, people and extinguishing agents .
From a water extraction point , suitable pumps are used to transport the water towards the fire via a single or double B hose line. It should be noted that a water lane is built up in the main direction of propagation of the fire. In the case of a water lane, two C and one B lines branch off from each distributor used . Both C-lines are directed towards each other and form the water lane. The outgoing B line goes to the next distributor.
Theoretically, this system can be expanded indefinitely, but care must be taken that there is a sufficient amount of water available. The pump power used should also ensure that there is sufficient water pressure on all spray pipes .
A similar tactic is the extended " bolt position " with more than one distributor on a B-line. In contrast to the Wassergasse, the extinguishing agent aims in one direction (e.g. against a forest or wildfire). For this purpose i. d. Usually two C-hose are required on the side of the distributor facing away from the fire, and one C-hose on the facing side. (See sketch.)
Web links
- Building a water alley. Wansleben Fire Brigade, accessed on October 19, 2019 .
literature
- Michael Foedrowitz: Fire engines in use 1939-1945 . Firestorm and Water Alley. Nebel Verlag, Wölfersheim-Berstadt 1999, ISBN 3-89555-865-6 .