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The general idea with the system on this vehicle
is that it is a small water tank
and that the normal nozzles use a lot of water
and it requires a lot of water just to fill the hoses up.
On the hose reel there is 200m of 25mm hose
It is of course not pressureized since it is rolled flat.
so you just roll out the amount of hose you want, it is devided into 20m pieces.
And then you connect the hose, and if it is not enough you can lengthen it with more.
In the vehicle there is 1000liters of water.
If all the 200m of hose is deployed
then 100 liters is used, every meter requires 0,5 liters of water.
The 5mm nozzles use about 30 liters / minute
Then this water tank can last for about 30 minutes.
The nozzle we have made our self
Especially made because we are economical
It costs about 120 SEK to manufacture it in parts
and the time that it took to build them here.
The downside is that we do not get the perfect wide jet you would like to have sometimes.
But in general it is hard to get a good wide jet when you use smaller nozzles.
And this nozzle is about 5mm in diameter.
And this is how it looks
The wide jet looks like this.
And this is on a 100m of 25mm hose.
Pretty good range of the water jet.
A small experiment Ljungby and Värnamo together.
How is it going to look if we use 1,2,3 or 4 nozzles on the hose.
One looks OK
Two looks OK
Three
It does get wet
And then we want to get over the nasty obstacle in the way of the hose.
Pretty easy to handle
42 mm hose for the feeder hose.
It is packed into rubber bags that look like this.
To get it into the bag it is first packed into this box.
To ensure that it is folded correctly to fit the bag.
A small manifold in the bottom.
And then you fold the hose like this
And the hose is stacked in three layers up to the top of the box.
The bag is placed outside the box
Then you pull the box out and you have 50m of 42 mm hose with connected manifold.
The 25mm hoses are packed into backpacks.
We have three different wooden boards in the bag
A longer one against the back for stabilizing the backpack
and the two others for distance between the hoses.
The big one first in the back
Hose number one
A distance board
Hose number two
Another distance
And then the third hose
And a nozzle in the other compartment and it is ready.
We have eight bags with 42mm hose with manifolds, 400m all together.
And here we have two backpacks with 25mm hoses, 60m in each.
The standard organization is three firefighters in this vehicle and two in the terrain vehicle.
And then we have all together with us 600m 42mm hoses
and four packpacks with 25mm hoses.