buran, shuttle buran program, energia, space shuttle, launcher energia, launcher, USSR, mriya, polyus, poliyus, energya, maks, bor-4, bor-5, bor-6, energia-buran, soviet rocket, space shuttle, soviet launcher, Буран, Энергия, plans, schematic, soviet, russian shuttle, russian space shuttle, USSRburan, shuttle buran program, energia, space shuttle, launcher energia, launcher, USSR, mriya, polyus, poliyus, energya, maks, bor-4, bor-5, bor-6, energia-buran, soviet rocket, space shuttle, soviet launcher, Буран, Энергия, plans, schematic, soviet, russian shuttle, russian space shuttle, USSR


Hydraulic system

To guarantee a high degree of security of the aerodynamic mechanism (elevons, rudder) the hydraulic system includes 3 independent circuits. Every circuit contains an hydraulic pump, a tank, fine and coarse cleaning filters, a battery, and sensors. The working liquid is a non corrosive silicone oil of reference 7-50C3. The pressure of the system is 20.5 MPa, the debit is 240 l/min and the working temperature is from -60°C to +175°C.
The functioning of the shuttle is possible even with 2 hydraulic systems out of order.