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Distribution: A-W(AS/ND/AT/AF/FS)-3; AVN-100 (200 Cys); AMA-200 (80 Cys) Initiated By: AFS-420 A-X(FS/AF/AT/AS)-3; ZVS-827; Special Military and Public Addressees . ORDER 8260.52 UNITED STATES STANDARD FOR REQUIRED NAVIGATION PERFORMANCE (RNP) APPROACH PROCEDURES WITH SPECIAL AIRCRAFT AND AIRCREW AUTHORIZATION REQUIRED (SAAAR) June 3, 2005 U. S. DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION RECORD OF CHANGES 8260.52 CHANGE SUPPLEMENTS CHANGE SUPPLEMENTS TO OPTIONAL USE TO OPTIONAL USE BASIC BASIC FAA Form 1320-5 SUPERSEDES PREVIOUS EDITION 6/3/05 8260.52 Page i (and ii) FOREWORD The increased utilization of Area Navigation (RNAV) has improved the flexibility and capability of the National Airspace System (NAS). However, current RNAV applications do not exploit the full spectrum of aircraft/navigation performance capabilities provided by the equipment of some operators. Where the use of these advanced capabilities allow for more efficient routings, a reduction to Decision Altitude (DA) of at least 50 feet, a decrease in visibility by at least ¼ mile, or lateral/vertical paths that would otherwise be unavailable, instrument approach procedures (IAP) may be constructed under the Required Navigation Performance (RNP) Special Aircraft and Aircrew Authorization Required (SAAAR) criteria contained in this document. This directive is written for the use of IAP developers. It provides the tools to construct the Obstacle Evaluation Areas (OEAs) and evaluate the Obstacle Clearance Surfaces (OCSs) associated with an RNP SAAAR approach procedure. This document does not discuss the rationale or philosophical basis of the criteria. James J. Ballough Director, Flight Standards Service 6/3/05 8260.52 Page iii TABLE OF CONTENTS Page CHAPTER 1. GENERAL 1.0 Purpose -----------------------------------------------------------------------------------1-1 1.1 Distribution -------------------------------------------------------------------------------1-1 1.2 Effective Date-----------------------------------------------------------------------------1-1 1.3 Background ------------------------------------------------------------------------------1-1 1.4 Definitions ---------------------------------------------------------------------------------1-1 1.4.1 3-Dimensional (3-D) --------------------------------------------------------------------1-1 1.4.2 Approach Surface Baseline (ASBL) ------------------------------------------------1-2 1.4.3 Course Change --------------------------------------------------------------------------1-2 1.4.4 Decision Altitude (DA) ------------------------------------------------------------------1-2 1.4.5 Distance of Turn Anticipation (DTA) ------------------------------------------------1-2 1.4.6 Final Approach Fix (PFAF)------------------------------------------------------------1-3 1.4.7 Final Approach Segment (FAS)------------------------------------------------------1-3 1.4.8 Flight Path Control Point (FPCP)----------------------------------------------------1-3 1.4.9 Final Roll-Out Point (FROP) ----------------------------------------------------------1-4 1.4.10 Geographic Positioning Navigation (GPN)----------------------------------------1-4 1.4.11 Glidepath Angle (GPA)-----------------------------------------------------------------1-4 1.4.12 Ground Point of Intercept (GPI)------------------------------------------------------1-4 1.4.13 Height above Touchdown (HAT) ----------------------------------------------------1-4 1.4.14 Landing Threshold Point (LTP) ------------------------------------------------------1-5 1.4.15 Obstacle Clearance Surface (OCS) ------------------------------------------------1-5 1.4.16 Obstacle Evaluation Area (OEA) ----------------------------------------------------1-5 1.4.17 Obstacle Identification Surface (OIS) ----------------------------------------------1-5 1.4.18 Radius to Fix (RF) Leg -----------------------------------------------------------------1-5 1.4.19 Required Navigation Performance (RNP)-----------------------------------------1-5 1.4.20 Required Obstruction Clearance (ROC)-------------------------------------------1-6 1.4.21 Runway Threshold (RWT)-------------------------------------------------------------1-6 1.4.22 Special Aircraft and Aircrew Authorization Required (SAAAR) --------------1-6 1.4.23 Track to Fix (TF) Leg -------------------------------------------------------------------1-6 1.4.24 Visual Glide Slope Indicator (VGSI) ------------------------------------------------1-6 1.4.25 Visual Segment --------------------------------------------------------------------------1-6 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：SAAAR RNP进近程序
