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A TENT |
| Have passed those times when in 2 local canvas tent
jammed 5-6 persons. Slept on one side and were overturned on a
command. Now we sleep in comfort, but I with pleasure would exchange
the "hannah" for that place in sinthepon sleeping bag
near to warm women careful. Progress separates, and to not rally
as before our lines. |
Modern tents develop on three directions.
Forms of tents (from simple hemispheres up to decahedrons)
Properties of a fabric (durability, water resistance, ease)
Arches (from mix of coal and plasticа up to various alloys of aluminum).
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The form of tent.
It is possible to discuss advantages of this or that form of tent for a long time.
But all the same three contradictions in one model are not to connect.
The basic and inconsistent requirements to tent:
Wind stability (means not high and strong (many arches))
Comfort (means big and high)
Small weight (means not big and few arches (not strong))
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The tent on the right (the form of tent), is optimum variant,
a golden mean between camp and high-altitude (extreme) variant.
And that is why: In the basis the square, means we
have the maximal internal volume at the minimal area of a surface of an
awning, and consequently the minimal weight of a fabric of an awning at
a maximum of internal volume.
Two entrances - it is convenient to creep and creep
out, not disturbing the neighbor.
Two tambours (it the third arch from above forms)
is an opportunity to hide backpacks and to release more spaces inside.
Dome awning - it is optimum for wind stability.
Simplicity of assembly is an opportunity to put an awning without internal
tent.
At open internal entrances of tent in it can freely sit 6 people.
And winter variant of this tent with wind and snow protecting a skirt (yellow color)
The attention deserves the form of tent with an arch in front
and its variant - the lengthened tambour. And certainly, the classics
of a genre is tent with two sloping surfaces, is irreplaceable in the
summer in the Crimean wood as the big mosquito net... |
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Fabric of tent:
The basic characteristic of an awning of tent is
the height of a water column maintained by a fabric up to drench.
Normal it is considered pressure about 1000-3000 mm, excellent is 5000-7000
mm. Well and it is higher already super and in general an excess.
Tents with a parameter in 1500 mm quite maintain a strong downpour. Much
more value has a backlash between internal tent and an awning. Roughly
speaking if the backlash is, water will flow down on walls of an awning
and will not get in tent at any downpour.
Bottom of tent makes from wearproof materials with parameters of pressure
upon 2-3 thousand above, than an awning. For example, if an awning of-1500
mm a floor makes of a fabric in 3000 mm if an awning of 5000 mm, a floor
of 7000 mm. In inexpensive tents a floor makes of polythene (it’s more
hardly and less strong).
Arches of tent:
Arches from plastic (mix of coal and plastic) are cheaper,
but in the first at the big loadings break also the fragments break through
an awning of tent, in the second hold the form worse. To tell the truth,
modern cores from layered plastic quite compete to metal if to take into
account a difference in the price.
Metal certainly is better, but in two - three times more expensively and
frequently makes half of cost of tent. The tent with good arches should
keep the form if you will lift it for one arch or will press an arch to
a floor and release - the arch should accept the initial form
Frequently meeting lacks of a design of tents
| Flat roof and small backlash between an awning and internal ten:
the snow perfectly lies on its roof also fill up tent. |
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| At opening an entrance in tent the rain gets not in tambour,
and is direct in internal tent (very disgustingly). |
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Spending the night in winter conditions without tent:
Snow cave: Rummages
on slopes or on the part of pressurization. Necessarily the entrance
is lower than a level of a floor. On a wind-heat-shielding, it
is better than the tent, but its creation demands the big efforts,
is especial at heights over 5000 m. Though for digging a cave
it is enough to have a bowl and a kettle. If not be too lazy to
take a snow shovel (500-800 gr. Of weight) process will go to
5 times faster. Temperature in such cave 6-7С at any frost outside.
And if to include a camping light or a gas torch that +10+15С
not a problem. |
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Needle: Incomparably
more difficult construction than a cave is under construction
on rather equal sites of a dense snow. Construction of a needle
demands skills and special equipment - a shovel, and sometimes
and a saw
Really (in mountains) we have to build something average between
a cave and a needle and to be trained in the best way
in the Caucasus. |
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