This is the Swedish army’s ”lone wolf” (ensamvarg) shelter. Similar to the British army’s basha or a tarp, the lone wolf provides a simple shelter for one person. Constructed of a nylon material, It has a diamond shape construction of about 2 meters in width and 3.5 meters in length. Officially, the Swedish army lists it as “Regnskydd vävplast” (rain cover, plastic) but it also has the name “knapp tält” (button tent) as it has a row of button on each side so you can button up a number of these shelters to make a wind shield or even a tent.
Above, I have laid out two lone wolfs ready to connect together. For a simple wind shelter, I will need to button together on side from each shelter.
Down the edge of each shelter the lone wolf has a set of buttons and a button holes (see picture, to the right). That makes connecting them easy with some degree of water proofing. Not sure how well it works as I haven’t taken them out in really bad weather.
To the left, you can see what the wind shield looks like when constructed. I has enough room in their for two people plus kit. You could probably sleep in it so long as the wind comes from behind.
For this construction I used an old tent pole form a tent that I no longer have plus a guide rope to keep it up. These items do not come with the standard issued lone wolf so I have no idea how the Swedish army soldiers actually construct this shelter and keep it up!
The Swedish army began to introduce these in the 1960s and they still use them today. They replaced to older, camouflaged, quarter-shelters. Each shelter has a hole in the middle with a flap to keep the rain out when you use it as a single person shelter. That means that when you set these things up you have to make sure the flap covers the hole in the direction the rain runs off.
Normally, you tie these up to a tree and you adjust the hight depending on the rain or snow. Soldiers in the filed also cut a couple of saplings and bend them so they form an arch inside the shelter (like a rib cage). That gives in more of a curved shape and helps the rain drain off. I haven’t done that in the picture to the left.
You can then use the shelter as a poncho, so it will give you some protection from the rain. You put your head through the hole in the middle and button up the lower corner.