🚢 Maritime Intercept Course Calculator
Calculate the optimal course and time required to intercept a moving target. Essential for search and rescue operations, vessel rendezvous, and tactical maritime navigation.
Useful?
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Enter course/speed and press Calculate
The interception vector will appear here
Results are for reference only. Please double-check the answers.COLREGs Rule 7 Compliant Math
⚙️ How to Use
Step 1: Input Speed
- Enter your Own Ship Speed in knots.
- Ensure your speed exceeds the target's relative speed for a cross.
Step 2: Target Data
- Input the target's Course and Speed.
- Add the Bearing and Distance from your current position.
Step 3: Analyze
- Review the Course to Steer and Time to Intercept.
- Confirm the vectors using the Interactive Diagram.
Navigation Tip: Intercept is based on a constant bearing. If the relative bearing remains unchanged, you will intercept or collide.