The CRAS slide rule is a fundamental instrument in traditional navigation equipment, essential for both amateur and experienced sailors. It allows plotting courses, positions, and distances on nautical charts with high precision and ease, thus ensuring efficient and safe navigation.
Main Applications
- Coastal and offshore navigation
- Route marking and course determination on marine charts
- Reference point in captain courses and nautical training
Advantages
- Allows operation directly on the chart without the need for other instruments
- Portable, compact, and resistant to intensive use on vessels
- Easy to use, ideal for training and professional use
Usage and Maintenance Tips
- Clean with a soft cloth after each use to avoid wear of the markings
- Store in a dry and protected place to extend its lifespan
- Follow the usage guidelines to obtain accurate measurements
Technical Specifications
| Material | Usually durable acrylic |
| Scales | Km, nautical miles, and degrees |
| Recommended Use | Traditional sailing and motor navigation |
