respective range check point (821).
6.2.2.1 For each SRA procedure intended, a minimum of 3 aircraft or helicopter tracked approaches shall be carried out (822).
6.2.2.2 Where 0.5 NM SRA is proposed, for each approach the target position shall be recorded at threshold, 0.5 NM, 1 NM, 2 NM and 3 NM from touchdown and compared against the controller reported position (823).
6.2.2.3 Recommendation: For SRAs terminating at 1NM or greater, for each approach the target position should be recorded at 0.5 NM, 1 NM, 2 NM and 3 NM from touchdown and compared against the controller reported position (824).
NOTE 1:To assist in the selection of appropriate range points these ranges can be ± 0.25 NM.
NOTE 2:The following is a suitable method for obtaining the aircraft position:
a)Bearing by use of theodolite tracking of a suitably equipped aircraft using trained operators from an approved flight check organisation.
b)Range checking by use of visual reporting points.
6.3 Assessment of Maps and Permanent Echoes (PE)
6.3.1 As part of the flight trial the accuracy of the video maps and PE shall be confirmed (825). In the case of the maps a number of significant map features shall be chosen and a suitable reference shall be determined for each feature (826).
6.3.2 Recommendation: PE should be selected taking the following factors into account: a) There should be at least 3 PE, each separated by more than 60 degrees (827). b) Each PE should not extend over more than 2 degrees of bearing (828). c) Each identified PE should be at least 5 degrees away from other fixed clutter (829). d) Each identified PE should be at greater than one third the standard displayed range
(830).
7 Resolution Assessment
7.1 The flight trial shall assess the resolution capability of the system in terms of the minimum separation standards or deconfliction minima as required in the OR (831).
7.2 The resolution capability of the system shall be evaluated in both 'standard' areas and areas of clutter and reflections (832).
Part C, Section 4, Meteorological
MET General Requirements for Meteorological Equipment and Use of Meteorological Information
This document replaces MET 01 to MET 09 inclusive following transfer of certain regulatory functions to the UK Meteorological Authority.
1 Introduction
1.1 The origination of meteorological reports and other related information is regulated by the UK Meteorological Authority, Room K6, CAA House, 45-59 Kingsway, London, WC2B 6TE, telephone: 020 7453 6526.
NOTE: Further details about the meteorological observations made to support civil aviation and the related regulatory requirements are published in CAP 746 Meteorological Observations at Aerodromes.
1.2 The use and processing of meteorological data within an ATC unit is regulated by the CAA SRG Air Traffic Standards Division.
1.3 In addition to paragraph 1.2 above, the use and processing of externally generated meteorological data, surface wind information and, where applicable, Instrumented Runway Visual Range (IRVR) data is presented to ATC in dynamic (real-time) form. The equipment used to derive this information and to present it to the air traffic controller and to other working positions within an ATC unit is regulated by the CAA SRG Air Traffic Standards Division. It is recognised that the equipment that is used to derive the surface wind information may be the same as that used to originate the meteorological report for the aerodrome. In this case, only the equipment used to display (and, if appropriate, to process the data specifically for presentation to the air traffic controller) is regulated by the CAA SRG Air Traffic Standards Division.
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本文链接地址：CAP 670 Air Traffic Services Safety Requirements 2(104)
