In a survival situation whatever you have on you is all you have. Improvisation is key to ensure your survival in many cases.
You need to first determine a need. During a phase of training I had little cover from the sun and would likely expire from heat exhaustion unless I got a shelter erected to protect myself. Once the need is determined you should inventory those possessions that you have and also look at the environment to see what it has to offer. Your manmade items are limited, however nature provides a variety of resources available to you in order to build a shelter. In certain tropical climates for example banana leaves can be used very effectively to shield you from the rain. Once you’ve seen what you have and what nature offers you need to select an option that is going to be a good use of time, materials and energy. If I find myself in terrible weather with pelting rain and I’m going to make a more expedient, simple shelter than if I find myself in a survival situation in the early afternoon in good weather. The same goes for the situation I found myself in after rucking through the mountains. I was exhausted. Be realistic with how much energy you can spare and don’t try and make yourself a mansion.
Make sure when you plan your shelter you make something that is safe and durable. A shelter that collapses on you and kills you is a hell of a way to go. In general there are two types of materials you can use to make a shelter; permeable and non-permeable to water. The parachute I used to make my shelter during selection was a permeable material. To help ensure that water won’t get through you can do two things.
- Pitch (Angle of the material 45 to 60 degrees)
Together these two elements will help ensure that water will not get through the permeable material and it works quite well. With non-permeable materials such as a poncho or rain tarp, pitch and tightness are important however be careful not to over-tighten the material to the point where it tears. Make sure you build your shelter on flat terrain unless you like sliding down a mountain while sleeping, be near water but not so close that you get annihilated by insects. I prefer 300 meters.
I survived both exercises because they weren’t going to let me die but also because I made a shelter that protected myself from the environment. This helped me maintain that 98.6 degrees Fahrenheit. Be smart and safe – building a survival shelter has been the deciding factor between life and death for many people. What’s going to help you most is being prepared. Having a tarp or poncho in your bag is essential regardless of the weather.
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