The Sailing Science Center attended a sea trial on Navier's N-30 electric hydrofoiling boat.

In this sequel to the first SSC Prop Walk video, we repeated the experiment, only this time we mounted a crane scale on the starboard stern line to measure the force that was produced. The stern line was positioned to be perpendicular with the boat's centerline and at the fore-and-aft position of the boat's propeller. We went on to measure the comparative side force of the rudder at full deflection (about 30 degrees) and of the backing force when the engine was in reverse. Can you guess which of the three numbers was highest? The boat is a 1979 Freya 39 with a Michigan Wheel 17 x 10 2-bladed propeller. The tests were conducted on June 21, 2022 (the summer solstice). The hull and propeller were cleaned by a diver the day before the tests. An important caveat to these tests is that they were conducted at steady state and with zero speed of advance. This is not generally the case when maneuvering, and values could vary dramatically from what we measured. Nevertheless, the experiments provide great insight into the absolute and relative magnitudes of the forces involved. We hope you get a lot out of it!

The Founder's Comments from the Sailing Science Center 2022 Making Waves Gala highlight the SSC's three pillars of Ocean Stewardship, STEM Education, and Leadership.

The Sailing Science Center Made Waves at its 2022 gala. These are some of the highlights.

A conversation between Jim Hancock and podcast producer and volunteer, Charlie Deist, about the link between stress and health, and between health and sailing. How can we use stress to our advantage? What are the cultural causes of our health predicament? Are we becoming too comfortable? And how can sailing be a part of the solution? Charlie recently wrote some thoughts on his newsletter, suggesting that a sailing revival might be the answer to our physical malaise: https://50mileman.substack.com/p/sun-wind-and-steel Support the Sailing Science Center's mission at https://sailingscience.org/donate Music from Bensound.com intro: Going Higher Outro: All that

Jonas Schumacher, co-founder and CEO of Smartmark (https://mysmartmark.com/), talks about his company's game-changing technology: a dynamically positioned racing mark. Smartmark's innovative technology promises to create greener, less labor-intensive, more accurate, race courses at all levels of sailboat racing. Before the interview we were unsure of its value. We are now believers! Support the Sailing Science Center's mission at https://sailingscience.org/donate Music from Bensound.com intro: Going Higher Outro: All that

Video short of the SSC's event for the Encinal Yacht Club on the final day of their 2022 Summer Camp.

Sailing Science Center Pop-Up Exhibition at the Encinal Yacht Club, June 22, 2022. Alameda, California.

Jim Hancock interviews Cree Partridge, owner of the Berkeley Marine Center and installer of the first hydrogen-fuel-cell-powered auxiliary on a West Coast sailboat. Cree discusses his early boating background, boatbuilding designs and materials, and makes an astonishing claim about ferro-cement boats. He also reveals his favorite boat-building material. Listen to find out. Support the Sailing Science Center's mission at https://sailingscience.org/donate Check out the BMC at https://berkeleymarine.org Music from Bensound.com intro: Going Higher Outro: All that