Ferryboat EUREKA closed for maintenance.
Ferryboat EUREKA is closed beginning March 11 and into April for maintenance. The gangway that links the ship to the pier needs to be raised so it can be repaired.
Maybe you have been walking along the beach in Aquatic Park and noticed two huge propellers sitting in the sand near the east roundhouse. I've been walking by those for years and decided to do some investigating.
What is cavitation and how can it pulverize steel? This phenomenon can occur under certain conditions during the rotation of a screw propeller. In the turbulent water around the propeller air bubbles can't escape so they implode, releasing energy, and causing physical damage to parts of the prop.
See you in the park and try not to trip over those props!
Park Ranger Christine
Did You Know?
Clipper cards were small, often colorful cards issued to advertise specific voyages from one port to another, usually from Boston or New York to San Francisco. Their heyday was the late 1850s to early 1860s. More...