Answer :
Runway designation numbers are supplemented by a letter for parallel runways, with 'L', 'C', and 'R' used for three parallel runways to indicate left, center, and right, respectively. therefore the correct option is B. By a letter - for example 2 parallel runways "L" and "R" - for 3 "L", "C" and "R".
In the case of parallel runways, each runway designation number shall be supplemented by a letter for 2 parallel runways. When there are more than two, for instance three parallel runways, they are labeled as "L" for left, "C" for center, and "R" for right. So, the correct answer is that each runway designation number shall be supplemented B. By a letter - for example 2 parallel runways "L" and "R" - for 3 "L", "C" and "R".
Runway designations are crucial for aircraft navigation and safety, ensuring clear communication and coordination among air traffic control and pilots. They take into account factors like the prevailing winds, which play a significant role in determining the direction of the runways for optimal take-offs and landings. The designator helps to distinguish between different runways that are aligned in the same direction.
