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Here you'll find resources to enhance your nautical knowledge.

• Maritime Signal Flags  - their names and meanings - and the Semaphore Flag Signaling System 
• Nautical Quizzes & Online Boating Courses
• U.S. VHF Marine Radio Channels and Frequencies

Calculators

• Distance and Chart Scale Calculators
• Meters, Feet and Fathoms Calculator
• Speed Conversion Calculator
• Weather Calculators

Can I afford that new boat?

• Loan Calculator
• Amortization Schedule Calculator

Weather

• How the weather works
• Weather.com - Glossary Index - Learn the terms
• Wind Scales - Learn the terms - Beaufort Wind Scale, Saffir-Simpson Hurricane Scale, Wind Warnings, Fujita Tornado Scale