1 - a head part; 2 - a connecting compartment; 3 - an instrument compartment; 4, 9, 15 - a cable gutter; 5 - the marching engine of III step; 6 - III step; 7 - a tail compartment of III step; 8, 13 - connecting farms; 10 - the marching engine of II step; 11 - II stage; 12 - tail compartment of II stage; 14 - a support leading belt; 16 - a march engine of I stage; 17 - I stage; 18 - a tail compartment of I stage; 19 - aerodynamic stabilizers; 20 - a pallet with a support leading belt.