Fast temporary repairs
Pier-side ship repair firms are known to excel at assisting their clients under unusual circumstances. Take the photo above as an example. The General Cargo vessel suffered a breach to her hull as a result of a collision with a barge being pushed by a tugboat in the Chesapeake Bay. It was a cold and… Read more »
Statistics, the Inspection Paradox and Customer Acceptance
One of my favorite funky newsletters is the Maritime Advocate. It often has very useful information, but I really suspect I read it because of a clever bit of marketing. The end of the newsletter often has a bit of silliness, like a list of painful puns or a few bad jokes. While scrolling… Read more »
Sunday Morning, the Life of a Surveyor
At Martin & Ottaway, we all love being part of the maritime community, but maritime is 24 hours per day. Therefore a call may come in at any time. This time it was Sunday Morning, just while I was getting ready to survey a boat for my personal use. So I modified the schedule for… Read more »
Surveyors Gone to Work
Newark Liberty Airport – October 19, 2018 David and Pierce’s cars parked side by side late at night in Newark Airport while both travel overseas to different locations. What are the odds of two surveyors parking side by side arriving in a full parking lot at different times?
Is It Possible to Argue about Taste?
A long time ago I enjoyed a Car Talk episode where a listener asked Click and Clack what car he should buy for a cross country road trip. Click and Clack right away started making suggestions about late 1960’s or early 1970’s great American cruisers. Their argument was simple. Those cars are not expensive,… Read more »
Replacing Fossil Fuels with Ocean Wave Power
Wave energy converter (WEC) systems have not yet made it to the stage of development of wind and solar renewable power systems, but wind-generated waves are a concentrated form of wind power covering over 70% of Earth and present a fascinating opportunity for the future of sustainable energy and power systems. Figure 1. Point-Absorber Configuration of… Read more »
How Can We Stabilize the Power Industry in the United States?
Daily power plant operations in the United States are often taken for granted. Most people are not aware that the wholesale/industrial rate for electricty is updated every fifteen minutes and frequently varies from highs near $0.30/kWh ($300/MWh) to lows near $0.03/kWh ($30/MWH) throughout the day. Regional transmission operators (RTOs), companies such as PJM in the… Read more »
Collision and Angle of Blow; Sticking with What Works
While cleaning out files and I came across a 2004 collision that my father, Henk van Hemmen, handled. In the file there was a copy of a survey report on a 1971 collision with an angle of blow determination. The 1972 report was forwarded to some of the members in the 2004 survey party to… Read more »
Grace in the Details Kills Bike Helmets
Design is complicated, but often we try to explain it in a quick catchy phrase. There is a saying: “The Devil is in the Details”. Mies van der Rohe is often credited with flipping the concept upside down by saying: “God is in the Details”. Regardless, it means that if you do not pay attention… Read more »
So What Does It Mean to have a 1000MW Wave Farm Offshore?
Scale is a difficult concept when novel technologies are being introduced, especially when it comes to marine renewable energy projects. Let’s assume we are talking about a 1000 Megawatt wave farm. It is quite interesting to visualize such a farm off the coast of New Jersey (see Figure 1). Figure 1. A visualized 1000MW… Read more »