

Note that the opposite end of 18 left is designated as 36 right Note that the opposite ends (27 in this case) would also include the observer's view point, which means that the opposite direction of 09L would be 27R and vice versa.Įxample of three parallel runways. If the runways were three, then the designations would be 09L, 09C and 09R. For example, two parallel runways (East direction) would be designated as 09L and 09R.

The possible letters are L (left), R (right) and C (centre), in line with the point of view of the observer standing at the runway threshold. On parallel runways the number is supplemented with a letter which defines the relative position of each of them. if one of the runways is 12 then the other will be 30. The difference between the numbers is 18, e.g. This means that although there is one physical surface used for take-offs and landings, it is treated as two runways. If the runway is used in both directions, then each of them receives its own designator. In simple words, the runway designator represents the heading used for taking off or landing at the runway. North-oriented runways are designated 36 (not 00). if the runway cenreline azimuth is 82, then the designator will be 08). When this rule results in a single digit number then the designator is preceded by a zero (e.g. For example, if the azimuth of the centreline is 153 then the runway designator will be 15. A runway designator consists of a two-digit number, which is the whole number nearest to one tenth of the magnetic North when viewed from the direction of approach.
