The LV Energia autonomous control system based on the onboard
computer system ensures a high accuracy of PL launching
to a prescribed area and great capabilities to recover from
contingency situations including a failure of one engine
of LV. A high degree of automation allowed to consider many
potential contingencies, as recovery procedures reside in
programs. In other words, 500 contingency situations were
transformed to contingency situations incorporated in the
design. In the most critical contingencies, the automatics
brings and keeps the LV in a safety state till a proper
solution is made.
With a payload including elements to be jettisoned in the
ascent phase the control system command their jettison meeting
the requirements for falling of separable elements in a
specified area. Separation of the strap-on boosters, upon
fuel depletion in one of them, is commanded from the control
system using solid propellant jets.
A fire/explosion detection system serves to enhance safety
of operations performed at the launch site and to warn against
the LV in-flight explosion when accidental leakage of oxygen
and hydrogen from the core stage occurs. The LV engines
emergency protection system monitors parameters of engines
in the process of their ignition and operation and allows
to shutdown an accidental engine before its shutdown. Under
certain conditions an opposite engine functioning normally
is also shut down. All this prevents from an accident propagation
aboard the LV and allows to continue a controlled flight.
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