A330/A340 机组训练手册 FCTM Flight Crew Training Manual(96)

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When referring to RNP-X, the value of X is the navigation accuracy expressed in nautical.miles,.which.has.to.be.met.with.a.probability.of.95.%.
A RNP value can be associated with an airspace, route, SID, STAR, RNAV approach.or.a.RNAV.missed.approach.procedure.
Depending on the RNP value and the airspace environment (availability of ground-based.radio.navaids),.different.navigation.equipment.may.be.necessary.
RNP.CAPABILITY
In order to achieve a given RNP criteria, the FMS estimated position accuracy (also called Estimated Position Error) must be better than the associated RNP value. This is dependent on the FMS navigation-updating mode (GPS, DME/DME,.VORDME,.or.IRS).
Both the required and the estimated position accuracy are displayed on the MCDU PROG page, and their relationship determines the HIGH/LOW accuracy indication.(FCOM.1.22.20.refers).
The required accuracy can be either the default value, which is a function of the phase of flight, or a value manually entered by the crew. In this case, when flying in a RNP environment, the appropriate RNP value should be inserted in the REQUIRED.ACCUR.field.of.the.PROG.page.
.  When.HIGH.is.displayed,.the.RNP.criteria.is.achieved
.  When LOW is displayed, the RNP criteria is not achieved. In this case, use raw data to crosscheck navigation (FCOM 3.04.34 refers). If raw data is not.available.or.the.navigation.check.is.negative,.advise.ATC.
When.leaving.the.RNP.environment,.clear.any.manually.entered.RNP.value.
9.90.2

A330/A340 COMMS.&.NAV
O.I..(6.JUN.05)
FCTM  RNP
Without.GPS.PRIMARY
RNP accuracy criteria are met provided the radio navaid coverage supports it for:
.  
RNP-1 en route and in the terminal area provided a required accuracy of 1 nm*.is.manually.entered.in.MCDU.

.  
RNP-0.3 in the approach area provided a required accuracy of 0.3nm* is manually.entered.in.MCDU.

Note:
1.  *It is acceptable to enter the radial equivalent of the specified cross-track (XTK).accuracy,.which.is.the.RNP.value.multiplied.by.1.22.
With.GPS.PRIMARY
RNP.accuracy.criteria.are.met.for:
. RNP-1.en.route . RNP-0.5.in.the.terminal.area.provided.AP.or.FD.in.NAV.mode.is.used . RNP-0.3.in.the.approach.area.provided.AP.or.FD.in.NAV.mode.is.used
RADIAL.EQUIVALENCE
Aircraft fitted with legacy FMS, identified by the absence of the DCDUs on the forward centre instrument panel, display the radial equivalent of the REQUIRED (RNP).navigation.performance.on.the.PROG.page.
For RNP requirements, the navigation position error is defined in terms of the XTK/ATK error. The legacy FMS computes an estimated accuracy that is a radial value (circle) around the estimated position and displays this equivalent value on the PROG page. To obtain the radial equivalent of a XTK/ATK (RNP) value, multiply.the.XTK/ATK.by.1.22.as.follows:
.  Radial.equivalent.=.XTK/ATK.(RNP).x.1.22
For example, if an airspace or procedure specified an RNP of 0.3 nm, legacy FMS will display the radial equivalent value 0.37 nm on the PROG page (0.3 x 1.22),.which.equates.to.the.specified.RNP.
Table Of Contents
FCTM O.I. (30 JUL 04)
TABLE OF CONTENTS Training Guide General
Preface ........................................................................................................10.10.1

MEL
General........................................................................................................10.20.1
ATA 100 Format ..........................................................................................10.20.1
MEL Description ..........................................................................................10.20.1
MEL Operational Use ..................................................................................10.20.2

Briefing Guidelines
Briefing Procedure.......................................................................................10.30.1
　
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