Recruiter's Glossary

Examples: ECDIS • Mercator Projection • AIS

Variation

Term from Maritime Navigation industry explained for recruiters

Variation refers to the difference between true north and magnetic north on a compass, which is crucial for accurate maritime navigation. It's like having two different "norths" - one pointing to the Earth's actual north pole (true north) and another pointing to the magnetic north pole. Ship navigators need to understand and account for this difference to plot accurate courses. Think of it as similar to how your GPS needs to be calibrated to give you the right directions. The variation changes depending on where you are in the world and even changes slightly over time, which is why maritime professionals need to stay updated with the latest navigation charts and data.

Examples in Resumes

Calculated and applied Variation adjustments for trans-Pacific shipping routes

Trained crew members on proper use of Magnetic Variation compensation techniques

Updated navigation systems to account for annual Compass Variation changes

Typical job title: "Maritime Navigators"

Also try searching for:

Navigation Officer Deck Officer Ship Navigator Maritime Navigator Deck Navigator Navigation Specialist Marine Navigator

Where to Find Maritime Navigators

Professional Organizations

Online Communities

• Maritime Professional Groups on LinkedIn
• Reddit r/maritime
• gCaptain Forum

Job Resources

Example Interview Questions

Senior Level Questions

Q: How would you handle variation changes during a long ocean voyage?

Expected Answer: A senior navigator should explain the process of regularly updating variation calculations, using both electronic and paper charts, and implementing proper procedures for the crew to follow when making course adjustments.

Q: Describe a situation where you had to train junior officers about variation.

Expected Answer: Should demonstrate leadership experience and ability to explain complex navigation concepts in simple terms, including practical examples and common mistake prevention.

Mid Level Questions

Q: How do you calculate total compass error using variation and deviation?

Expected Answer: Should be able to explain the process of combining magnetic variation with compass deviation to determine total compass error, and how this affects course plotting.

Q: What sources do you use to find current variation values?

Expected Answer: Should mention various navigation charts, almanacs, and electronic resources used to find accurate variation values for different locations.

Junior Level Questions

Q: What is magnetic variation and why is it important?

Expected Answer: Should be able to explain the basic concept of variation as the difference between true and magnetic north, and why it matters for safe navigation.

Q: How do you apply variation to a compass course?

Expected Answer: Should demonstrate understanding of basic variation application rules (add west, subtract east) and ability to perform simple calculations.