Kingscote Airport Master Plan Apr 2010 - Kangaroo Island Council

KINGSCOTE AIRPORT MASTER PLAN
For planning purposes the limiting cross-wind component recommended for use in Annex 14
is:
− 37 kph (20 kt) for aircraft whose reference field length 2 is 1500m or over,
− 24 kph (13 kt) for aircraft whose reference field length is 1200m or up to 1500m; and,
− 19 kph (10 kt) for aircraft whose reference field length is less than 1200m.
(ICAO Annex 14 2004)
2 Reference Field Length is the minimum field length required for take-off at maximum
certificated take-off mass, sea level, standard atmospheric conditions, still air and zero
runway slope.
The previous Master Plan found the main 01/19 runway had a useability of 94.2% based on
a 24 kph allowable cross wind. Couper Technics 1997
All the critical aircraft mentioned in this study have a cross wind capability in excess of 24
kph, so the existing runway by itself can be considered suitable in terms of wind useability.
Additional runways have been constructed at
Kingscote, primarily to cater for light aircraft when
winds on the main runway are unsuitable.
The addition of the 06/24 and 15/33 runways
increases the useability of the aerodrome to 99.74%
for aircraft with a cross wind capability of 24 kph.
Couper Technics 1997.
Updated wind data was obtained from Bureau of
Meteorology as shown in Table 2 overleaf.
The data relates wind speed and direction to the
percentage of time and for the occurrence.
The wind data in Table 2 has been collated for the 9am and 3pm periods to represent typical
operating periods, as opposed to a 24 hour average, where the results can be skewed as
little activity occurs at night, particularly by small aircraft. Winds are also less intense at
night.
Keys aspects that can be drawn from the wind data include:
−
−
−
the majority of wind favours the north south runway;
the strongest winds occur in the afternoon and are from a westerly direction; and,
the data reinforces the findings of the 1997 Master Plan.
The data confirms the current layout is appropriate in providing adequate cross wind
useability for current and future aircraft likely to use Kingscote Airport.
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