Units of measurement

Introduction

In Hong Kong FIR, the normal Units of measurement is listed in the HKAIP GEN 2.1 MEASURING SYSTEM, AIRCRAFT MARKINGS, HOLIDAYS

Quick References:
Hong Kong Runway Dimension: 3800 x 60 M
Hong Kong Aerodrome elevation -28 ft
Source: AIP HONG KONG AD 2.12

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Altitude- the vertical distance of an aircraft above mean sea level (MSL)
Elevation- the vertical distance of the object fixed to earth from the mean sea level eg. Aerodrome
Height - the vertical distance of an aircraft above ground level depending on a datum/reference point
1 hPa = 30 FT

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