Kingscote Airport Master Plan Apr 2010 - Kangaroo Island Council

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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. 6
KINGSCOTE AIRPORT MASTER PLAN Table 2 Wind Speed by Direction and Percentage of Time 9AM N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Total Calm 7.40 1–5 km/h 0.29 0.13 0.22 0.16 0.24 0.09 0.18 0.20 0.35 0.31 0.60 1.01 0.84 0.51 0.11 0.20 5.46 6–10 km/h 0.90 0.79 0.77 0.57 0.86 0.46 0.60 0.64 0.95 1.25 1.78 2.86 3.87 1.54 0.59 0.59 19.00 11–15 km/h 1.61 1.26 0.88 0.55 1.14 0.99 1.04 0.92 1.61 1.63 0.93 1.76 2.69 0.75 0.64 0.84 19.26 16–20 km/h 1.28 0.84 0.66 0.37 0.82 0.70 0.79 0.86 1.45 0.90 0.77 0.79 1.83 0.57 0.49 0.82 13.95 21–25 km/h 1.59 0.93 0.59 0.38 1.04 1.21 1.83 1.48 1.61 1.21 1.06 1.45 1.74 0.53 0.79 1.15 18.62 26–30 km/h 0.97 0.40 0.07 0.16 0.55 0.86 1.41 1.06 1.36 0.57 0.49 0.71 0.81 0.42 0.51 0.66 11.03 31–35 km/h 0.20 0.05 0.09 0.16 0.46 0.22 0.22 0.22 0.16 0.24 0.27 0.20 0.18 0.42 3.12 36–40 km/h 0.09 0.02 0.02 0.02 0.04 0.15 0.11 0.16 0.20 0.18 0.15 0.16 0.20 0.22 0.09 1.81 >40 km/h 0.02 0.02 0.02 0.05 0.02 0.09 0.02 0.02 0.02 0.02 0.02 0.04 0.35 TOTAL 6.96 4.38 3.19 2.27 4.76 4.53 6.49 5.55 7.73 6.38 6.01 8.98 12.24 4.75 3.56 4.82 100.00 3PM N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Total Calm 0.11 1–5 km/h 0.02 0.02 0.02 0.04 0.02 0.02 0.02 0.02 0.02 0.02 0.20 6–10 km/h 0.58 0.57 0.29 0.24 0.31 0.15 0.22 0.15 0.15 0.18 0.18 0.20 0.24 0.07 0.20 0.22 3.95 11–15 km/h 2.17 1.75 1.72 1.52 1.95 0.55 0.91 0.71 1.11 0.68 0.53 0.24 0.62 0.46 0.60 1.19 16.71 16–20 km/h 1.79 1.44 1.35 1.61 2.19 0.68 1.53 1.11 1.10 0.79 0.58 0.37 0.84 0.69 0.75 0.93 17.75 21–25 km/h 1.94 1.50 0.91 0.73 1.48 0.58 2.94 3.21 2.45 2.08 1.41 0.99 1.30 1.75 1.55 1.26 26.08 26–30 km/h 1.17 0.31 0.18 0.13 0.37 0.29 2.63 3.34 1.81 2.45 1.42 0.75 1.44 1.68 1.30 1.02 20.29 31–35 km/h 0.35 0.05 0.07 0.02 0.02 0.86 1.28 0.58 0.89 0.69 0.47 0.82 0.84 0.55 0.27 7.78 36–40 km/h 0.20 0.04 0.02 0.04 0.37 0.55 0.37 0.69 0.68 0.46 0.71 0.64 0.37 0.16 5.28 >40 km/h 0.04 0.04 0.16 0.09 0.18 0.16 0.33 0.29 0.44 0.11 1.84 TOTAL 8.26 5.68 4.55 4.24 6.39 2.26 9.52 10.52 7.67 7.95 5.68 3.82 6.28 6.58 5.42 5.08 Bureau of Meteorology October 2009 via climate.sa@bom.gov.au 100.00 Runway Capacity & Demand Regional 50 seat airliners, predicted to operate into Kingscote during the Master Plan time frame, are likely to confine landings and take offs to the main runway 01/19, as the other runways are unsealed and are of insufficient length. The capacity of a single runway free of taxying and air traffic restrictions, is approximately 200,000 movements per annum. US Federal Aviation Administration Advisory Circular AC 150/5060-5. Previously the RPT traffic peaked at around 6,000 yearly movements using Saab 340 (34 seats) and Cessna 404 (9 seats) aircraft. The 2024/25 Optimistic Forecast of 156,158 annual passengers will require less than 5000 movements by a 50 seat aircraft at 70% occupancy. Therefore a single main runway will easily cope with the optimistic forecast in RPT traffic. General aviation aircraft accounted for nearly 4000 annual movements in 2008/09. AVDATA Airport Usage Analysis. No data is available of predicted general aviation traffic. The BTRE web site provides a breakdown of the general aviation hours flown nationally from 1994- 2007. The data shows an annual growth rate of just 0.52% in that period. Bureau of Infrastructure, Transport and Regional Economics via http://www.bitre.gov.au/info 2008. Assuming Kingscote performs far better than the national average, with a growth of 5% per annum for master planning purposes, around 8000 annual general aviation movements can be generated by 2024/25. The optimistic combined total of Regular Public Transport and general aviation movements at 13,000 per annum remains well below the airport capacity. The numbers show it is unlikely there will be aircraft delays due to lack of airfield capacity within and well beyond the master plan time frame. 7
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Kingscote Airport Master Plan Apr 2010 - Kangaroo Island Council

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