CS
ACNS.E.RVSM.005 RVSM system
ED Decision 2013/031/R
(See AMC1 ACNS.E.RVSM.005)
The RVSM system includes:
(a) two independent altitude measurement systems. Each system is composed of the following elements:
(1) Cross-coupled static source/system, with ice protection if located in areas subject to ice accretion;
(2) Equipment for measuring static pressure sensed by the static source, converting it to pressure altitude;
(3) Equipment for providing a digitally encoded signal corresponding to the displayed pressure altitude, for automatic altitude reporting purposes;
(4) Static source error correction (SSEC), as required to meet the performance criteria as specified in CS ACNS.E.RVSM.035; and
(5) Signals referenced to a pilot selected altitude for automatic control and alerting derived from one altitude measurement system.
(b) an altitude alerting system;
(c) an automatic altitude control system; and
(d) a secondary surveillance radar (SSR) transponder with altitude reporting system that can be connected to the altitude measurement system in use for altitude keeping.
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