1-in-60 Rule

The 1-in-60 rules is a basic rule of thumb used in air navigation. It states:

**One degree offset equals one nautical mile when sixty nautical miles from the origin**

Distance from VOR | 1 degree = ?nm |
---|---|

60 | 1 |

30 | .50 |

15 | .25 |

10 | .16 |

# Examples

**Track Correction**

If a pilot is flying a leg of 120 miles and finds after travelling 60 miles that they are two miles to the right of track then a correction of 4° to the left (2° to fly parallel to the intended track and another 2° to bring them to their target) will bring them to their destination.

**DME Arc**

To calculate the distance on a DME arc, use these basic calculations.

10nm Arc = Divide radials by 6

12nm Arc = Divide radials by 5

15nm Arc = Divide radials by 4

E.g. 30 degrees of a 10nm arc is 30/6 = 5nm

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## Authors / Editors

page revision: 0, last edited: 17 Oct 2011 04:26