As reported by Censor.NET citing Espresso TV, it is the altitude which allows Ukrainian helicopter pilots to be inconspicuous and avoid being hit by a portable anti-aircraft missile complexes used by Russian occupants in the Donbas.
"As helimen call it - flying at criminally low altitude. When the chassis almost touch the tops of trees, power lines, and in the field - tops of sunflowers and corn. This is the only way to escape enemy portable anti-aircraft missile complexes: helicopter stays invisible for the enemy, flying at very low altitude and copying the landscape. Ukrainian helimen are real aces," journalist Artiom Shevchenko wrote while posting the video on his Facebook page.
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