Upload
yuuji
View
1.536
Download
7
Embed Size (px)
DESCRIPTION
Citation preview
12/23/2009MTR Corporation
Area Navigation and Required Navigation Performance
Yuuji IzumoVATSIM Hong KongStanding Committee on Aviation Resource and Education Development
http://hk.vatsea.net/ (+852) 35947770VATSIM Hong Kong
Conventional Navigation-Conventional radio navigation rely on ground equipment
- Routes are linked by ground equipments Like VOR / NDB
- Ground Equipments must be functional
- Aircraft must flying with ground equipment
http://hk.vatsea.net/ (+852) 35947770VATSIM Hong Kong
RNAV- INS or IRS can help aircraft navigate with virtual waypoints and ground equipment
- Routes were linked by waypoints
- Aircraft can fly without ground equipment but navigate by onboard waypoint database
http://hk.vatsea.net/ (+852) 35947770VATSIM Hong Kong
RNP- RNP (Required Navigation Performance) is based on RNAV
- However it required aircraft cannot drift from the route for over some nautical miles.
- Like RNP 10 = aircraft cannot drift from the route over 10 nm, now using on cross ocean flights.
http://hk.vatsea.net/ (+852) 35947770VATSIM Hong Kong
RNPOcean Airway and Terminal Ocean Airway and Terminal
RNAV 10 RNAV 5 RNP4 RNP 2
RNAV 2 RNP 1
RNAV 1 RNP 0.3
RNP 0.1
http://hk.vatsea.net/ (+852) 35947770VATSIM Hong Kong
RNP- As under RNP navigation, aircraft will not allowed drift from the route away
-RNP0.3 / 0.5 now used on critical terrain approach routes
- In busy airports, aircraft separation can be reduced under RNP operation
http://hk.vatsea.net/ (+852) 35947770VATSIM Hong Kong
Map - Conventional Map were made by Mercator Projection method
- However this method treat our Earth as a perfect sphere
- After Human invented satellite, we found the Earth was actually oval shape
- Therefore charts nowadays are WGS84 standard to ensure we have correct position
http://hk.vatsea.net (+852) 35947770VATSIM Hong Kong