For 170 years, the San Francisco Bar Pilots have been navigating the world’s largest ships through some of North America’s most difficult waterways. These state and federally-licensed master mariners are highly-specialized ship captains who rely on navigational experience, ship-handling skills, and local knowledge to transport more than $1.2 billion in goods to and from 200 Bay Area ports, docks, and berths every day. This critical service protects more than 1,000 miles of fragile coastline...
A handy and simple tool to determine in a minimum time what is really needed as tug assistance, is the Bollard Pull Calculator which calculates in an approximate way the total required tug power for ships in various conditions of wind and current. This tool can be loaded as an app on the smart phone.
This video complements the earlier demonstration of wind effect on straight track and shows now wind effect on turning circles. It can be seen that during a turn under strong wind the ship reduces turning when it comes close to equilibrium on straight track - if the Wind-to-ship speed ratio is big enough then the ship even goes straight instead of turning. This is shown for three samples for Head, Stern wind and Beam wind. The turning can be increased if the ratio of Wind speed-to-ship...
LuxSpace CEO, Jochen Harms, on putting the ESAIL microsatellite into orbit.
ESAIL is part of ESA’s Partnership Projects and has been developed to enhance the next generation of space‐based services for the maritime sector. The spacecraft will track ship movements over the entire globe as it orbits the planet.
