The main know-how of the jacket in high-quality leather with special chemical impregnation, as well as special inserts that make the pilot's work comfortable. The thickness of the material is about a centimeter. In this case, the jacket is elastic and has a small weight. The skin withstands ingress of oil, aviation fuel and other technical fluids.
The jacket has a complex design of sealed pockets. “It allows you to connect anti-drop overalls (PPK) to the“ board ”of the aircraft. PPK is the most important element of a pilot's equipment, which is worn over the flight overalls. Without it, it is impossible to perform aerobatics and flight at high speeds. The pilot will instantly faint or die from a cerebral hemorrhage. The control panel has a lot of special chambers where compressed air is supplied. In case of overloads so that the blood does not leave the brain, the chambers fill with air, redistributing the pressure over the body. Feed tubes have a complex shape and design. Therefore, it is very important that outerwear does not interfere with the circulation of air through them, ”says the material.
During the tests, the jacket was blown in a wind tunnel at speeds of 1,2 thousand m / s. This confirmed the possibility of safe ejection from the aircraft. In addition, the product was exposed to an open flame, remaining unscathed for several minutes.
Currently on the VKS supply are flight jackets, developed in the middle of the 1950-s. In the middle of 2000-x this element of the flight form has ceased to be issued. The pilots flew in fabric jackets. And for everyday wear, at their own expense, they bought non-certified flight-style leather jackets.