College

Runways are assigned numbers based on their magnetic direction. The runway's magnetic direction is rounded to the nearest 10 degrees, and the last 0 is omitted.

If a runway is numbered 3 at one end, what would it be numbered at the opposite end?

Answer :

Final answer:

The number at the other end of a runway labeled 3 would be 21. This is because the runway numbers are determined by their magnetic direction, and the numbers add up to 360 for opposite ends of a runway.

Explanation:

In the field of aviation, a runway is denoted by a two-digit number, which specifies the magnetic direction that the runway faces. If a runway is numbered 3 at one end, denoting 30 degrees, it would be numbered 21 (210 degrees) at the other end. Runways are labeled based on their approximate orientation with respect to magnetic north, which means that at the other end of the runway, your direction is exactly 180 degrees opposite, hence your number would be 21 as you're facing 210 degrees direction. Therefore, the runway numbers at the two ends add up to 360 when you round both numbers to the nearest tenth

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