User's Manual Part 1
T
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CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
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“MONITOR VERTICAL SPEED”: Verify that vertical speed is out of the
illuminated red VSI arc, or comply with another suitable indicator. Additional
T
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CAS CU messages are “MAINTAIN VERTICAL SPEED, MAINTAIN:
MAINTAIN VERTICAL SPEED, CROSSING MAINTAIN”: or “ADJUST
VERTICAL SPEED, ADJUST”. Safe separation is based upon maintaining
the current vertical speed.
4
“ADJUST VERTICAL SPEED, ADJUST”: Reduce climb or descent rate.
5
“MAINTAIN VERTICAL SPEED, MAINTAIN”: Safe separation is based upon
maintaining the current vertical speed.
6
“MAINTAIN VERTICAL SPEED, CROSSING, MAINTAIN”: Maintain vertical
speed while crossing the intruder’s flight path. This advisory is implemented
on --XX003 TCAS CUs.
7
“CLEAR OF CONFLICT”: Range is increasing, and separation is adequate;
return to assigned clearance.
8
“CLIMB, CROSSING CLIMB—CLIMB, CROSSING CLIMB”: Safe separation
is best be achieved by climbing through intruder ’s flight path.
9
“DESCEND, CROSSING DESCEND, DESCEND, CROSSING DESCEND”:
Safe separation is best achieved by descending through the intruder’s flight
path.
(d) Enhanced RA Messages
Enhanced RAs are annunciated on the T
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CAS computer unit using the voice
messages listed below as designated by the CAS data when the initial resolution
advisory does not provide sufficient vertical separation. These messages are
annunciated to convey a sense of urgency. The following messages can
immediately follow a message from the previous paragraph and have a reversal
of sense.
NOTE: These advisories are expected to occur only on rare occasions, usually
when an intruder suddenly changes its current flightpath. (Maneuverin g
intruder)
1
“INCREASE CLIMB, INCREASE CLIMB”: (Received after a “CLIMB”
advisory) Indicates additional climb rate required to achieve safe vertical
separation from a maneuvering intruder.
2
“INCREASE DESCENT, INCREASE DESCENT”: (Repeated two times,
received after “DESCEND” advisory) Indicates additional descent rate
required to achieve safe vertical separation from a maneuvering intruder.
3 “CLIMB, CLIMB NOW!—CLIMB,CLIMB NOW!”: (Received after a
“DESCEND” resolution advisory) Indicates a reversal in sense is required to
achieve safe vertical separation from a maneuvering intruder.