Which rule applies to azimuths in mortar navigation?

The correct application for azimuths in mortar navigation is the Right Add Left Subtract (RALS) rule. This rule is essential in converting azimuths when planning mortar fire. It provides a systematic approach for adjusting the aim during target engagement.

When you encounter an azimuth that needs adjustment, the RALS rule guides the operator on how to make those necessary calculations. If you need to adjust your direction to the right, you add degrees to your current azimuth. Conversely, when adjusting to the left, you subtract degrees. This method helps ensure accurate targeting and effective fire support.

Understanding this rule is crucial for mortar crews to ensure that they can effectively and accurately direct fire on target, especially in complex environments where quick adjustments may be necessary. The other options present various interpretations, but they do not align with the standard procedures followed in mortar navigation.