Eg sendte en epost til Florian Homeier, han som lager Tschum og spurte om hvor mye vind lavvoen tåler å dette er svaret hans.
Hi,
as long as it is pitched correctly and the pegs are holding, I have no
doubt that it would withstand >= 100km/h winds.
I have been in an 80+ storm in Sweden with a 4P once. It took down trees
all around the campground, quite scary, but no problems whatsoever with
the tent. Just moved the spot a little bit as we saw it coming, so no
tree could potentially hit us.
The 2P is much smaller and has much less wind resistance. But all the
critical points are identical to the 4P, so it should be able to take
even more wind.
In case you only know plastic (pyramid) tents:
The PA/PES tents are usually cut straight, no caterary lines. They rely
on the stretch of the fabric to create a pleasing tension, and on
guylines for higher loads. Due to the stretch, these tents tend to sag
between the fixed points under windloads, which results in even more
load, as the sagging creates more resistance. The tiny guypoints take
most of the stress...
In contrast to that, cotton hast far less stretch, and I cut caterary
lines on the main seams. The correctly pitched Tschum tent stands in the
wind like a concrete block, compared to the typical plastic tent. No
sagging, less wind resistance, all loads are spread over the fabric and
seams to the tip, and to the robust pegging points.
As an additional bonus, there is much less movement and noise in the
tent during high winds, you will sleep better.
Second bonus: The cotton fabric will shrink when wet. So if the weather
gets nasty, your pitch will automatically tighten up, and the fabric
gets stiff.
I personally love the light 180g fabric for its properties.
Florian