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Thursday, June 24, 2010

Runway Design (Perencanaan Landasan Pacu)

The most important facility in the airport is a Runway (in Indonesian call landasan or landas pacu). We can not operate the airport without any runway, otherwise we can operate the airport without the taxiway or Apron, particularly for small airport. Length and width of the runway is depend on the type of the aircraft (biggest or critical aircraft) to be operate in a airport, and also some other factor affect the length of the runway are elevation, local temperatur and runway slope.

Refer to ICAO Annex 14, Table 1.1 Aerodrome Reference Code, devided the aerodrome become Code Number 1 to 4, Number 4 for runway length 1800 and over, Also the aircraft classified become Code Letter A to F depend on the wing span, for Boeing 747-400 have wing span 65m called Code Letter E.

Runway length and width;
The length of the runway shall be calculated base on the critical aircraft specification or performance graph and added the converstion of elevation above mean sea level, temperature and longitudinal slope. For example runway lnegth 3000m can operate critical aircraft B747-400, as at Ngurah Rai International Airport -Bali also at Sultan Iskandarmuda Airport - Aceh -Indonesia
The width of the runway for operate the aircraft with Code Letter E and Code Number 4 shall be 45 m (refer same Annex section 3.1.9). The shoulder of the runway for same Code letter and number shall be 7.5 m at both side, so total width of the runway become 60.0 m ( as shown on the picture)

Runway Strip
The runway strip at both side of the runway shall be slope to the drain system 2.5 % and shall be planted grass. No any fix structure shall be allowed on the runway strip more than 30 cm high except for the navigation or meteorology equipments. The width of runway strip shall be 150 m from the center line of the runway to both side of the runway, for instrument and precision runway Code letter 3 or 4. .

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