Features - Soundings Online
Numerical investigation on ship energy efficiency by Monte Carlo
illustration this northern boy
The most elegant lightship in the fleet - Soundings Online
Sonar - Wikipedia
World War I: Diamond Shoals Lightship LV-71
none: Back in the Day There Were Traffic Lights on Ships
Slide Show
The Project Gutenberg eBook of Ocean Steamships, by F. E. Chadwick