Marine Glossary
Tachometer
An instrument that displays engine RPM. Essential for matching prop to engine and monitoring engine health. 'Tach' for short.
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Articles mentioning “Tachometer”
Guides6mMarine Electrical Systems: Safe Power On The Water
Your boat's electrical system is the difference between a great day and a tow home. Learn 12V DC basics, battery management, and the 5 most common failures.
Captain Sarah Okonkwoupd
Guides7mInstalling a Through-Hull Transducer: A Step-by-Step Guide
A properly installed transducer is the difference between clear sonar and noise. Learn the 8 steps to a professional through-hull installation.
Captain Sarah Okonkwoupd
Reviews6mGarmin Echomap UHD2 9sv Review: Worth the Price?
A 9-inch chartplotter with side-scan, LiveScope compatibility, and ActiveCaptain at half the price of a GPSMAP. After 18 months aboard, our honest verdict.
Dr. Elena Vossupd
Reviews7mBest Marine Batteries 2025: AGM vs Lithium vs Flooded
A practical comparison of flooded lead-acid, AGM, and LiFePO4 marine batteries with real-world cycle life, charge profiles, and 5-year cost analysis.
Dr. Elena Vossupd