Transcript Slide 1
The Research of One Engine Inoperation for RNP Presented by Wang Zhong Content • Introduction • The Criterion for EOSID • RNP1’s EOSID • Conclusions Introduction • CAAC ’s PBN Roadmap – Near term(2009-2012) 30% airports have the ability of PBN operations – Medium term (2013-2016) All transport airports have the ability of PBN operations – long term (2017-2025) • Present situation – – – – Total airports 196 RNAV 23 RNP APCH 59 RNP AR 15 Special Airports AC & Regulations • Notice for designing the departure procedure of one engine inoperation (AC-FS-2000-2) Criterion for EOSID • Conventional Procedure • RNP AR procedures Conventional Protection Area Departure Splay Area EU-OPS Heading change<15°600m Heading change>15°900m 12.5% Initial protection area of departure 900m 90m 900m 45° Procedure turning protection area 2xRNP RNP AR Protection Area RNP-AR 0.31111m 90m 12.5% 2xRNP 2xRNP RF leg protection area RNP1 EOSID Protection Area Procedure turning area constructing model Out boundary not constant 30° 30° 0.3NM 0.3NM The latest turning point The latest turning point The earlist turning point A/2 The latest turning point 0.3NM 0.3NM RNP 1 1111m Fly-over Fly-by RNP1 EOSID Turning Area Constructing • Fly-over waypoint – The earliest turning point =-ATT – The latest turning point= ATT+c • Fly-by waypoint – The earliest turning point =-ATT+ R*tan(A/2) – The latest turning point= ATT+c- R*tan(A/2) • ATT=0.8*XTT RNP1 EOSID Wind Model Key point: Turning area changed by the wind factor Wind: ICAO wind: 30kt RNP1 reference Doc 9905 Consider the worse wind condition vwind 0.0082 height 28.53 Example: Above the airport: 2000ft Wind spiral radius RNP1>ICAO Instrument Air Speed : 205 kt. Bank angle : 15° Turning Degree Wind model 15° 30° 45° 60° 75° 90° 105° 120° ICAO wind 16099 16666 17233 17800 18367 18934 19501 20068 RNP1 wind 16374 17217 18060 18902 19745 20588 21430 22273 Dazhou airport , southwest of china EOSID DX402 RNP 1 SID DX801 14 EOSID Validation • Simulator Validation – – – – – – B737-700(22k) Max weight, max temperature Max weight, max temperature, max crosswind. Min weight, min temperature, max crosswind. Min weight, min temperature, max headwind. Max weight, min temperature, max tailwind • Flight Validation Flight Validation Conclusions • No specification or advisory circular about the RNP 1 on EOSID in China • New wind model and RNP APCH turning construction model • Simulator and flight validation prove the effectiveness