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( ) 30% airports have the ability of PBN operations – Medium term ( ) All transport airports have the ability of PBN operations – long term ( ) 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 )

Criterion for EOSID Conventional Procedure RNP AR procedures

Conventional Protection Area 45° 900m D’ D’ D D 90m 12.5% 900m Initial protection area of departure Procedure turning protection area Departure Splay Area EU-OPS Heading change<15°  600m Heading change>15°  900m

RNP AR Protection Area 90m 12.5% 2xRNP RF leg protection area 2xRNP RNP-AR 0.3  1111m

RNP1 EOSID Protection Area Fly-over Fly-by Procedure turning area constructing model Out boundary not constant RNP 1  1111m

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

Turning Degree Wind model 15°30°45°60°75°90°105°120° ICAO wind RNP1 wind Example: Above the airport: 2000ft Instrument Air Speed : 205 kt. Bank angle : 15° Wind spiral radius RNP1>ICAO

Dazhou airport, southwest of china

14 EOSID RNP 1 SID RNP 1 SID DX801 DX402

EOSID Validation Simulator Validation –B (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

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