Carbon fibre based materials caused a revolution in aviation. Already in the 60s the aircraft designers were trying to find alternatives to heavy-weight materials. The light and strong composites have become a good choice.
For a long time composite materials have been used, for example, by Kazan Aircraft Production Association of Gorbunov. Tu-204 medium range jet airliner produced in early 90-s had 25% of composite materials parts including all high-lift system: flaps, ailerons, spoiler, elevators, as well as hatch, floor and interior panels.
The calculation says that thanks to composite components the new Tu-204 is 1200 kg lighter than the one fully made of metal. Due to the fact that each saved kilogram of airframe weight decreases fuel consumption by 2-3 kilograms per year, with average kerosene prces around 30 to 40 roubles the annual savings per flying aircraft reach up to 144 thousand roubles.
Besides, composite parts weight is not more than 20% of the analogous aluminium parts weight, having better strength, pressure resistance, and also being non-metals they are of course are corrosion resistant. Finished composite parts are environmentally friendly in use requiring less maintenance. Being cleaned regularly, composite parts look brand new for many years.
The reinforcement system based on a carbon cloth can restore and increase the carrying capacity of structures in a short time and less effort than traditional methods, as well as significantly increase the life of the structure.
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