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Sunday, October 17, 2021

Oct 17, 2021-B&G Instrument Project

wingssail images-fredrick roswold 

B&G Hercules 390: 40 years old


We’ve had these B&G Hercules instruments since we got the boat in 1986. They actually date from 1979, most of them.

We’ve maintained, fixed, upgraded and babied them for 35 years. They still work, but barely, and parts are getting thin.

We’d love to upgrade them to newer model instruments but the cost is prohibitive. 

Then I was given a box of slightly newer B&G Hercules gear which was taken out of a boat which was hit by lightning. They were not working and the owner said, “Replace them all”.

Opening them up I did find burned out circuit boards. 

But I thought they might be repairable so I set them up on the work bench and chart table and began an “bench test’. 

  wingssail images-fredrick roswold 

Bench Testing 

I found most of a complete system could be created out of the box of pieces but a lot of them were trashed. 

One of the most challenging parts was the wind sensor which goes on the top of the mast. It was broken and also, I wanted a newer vertical version (the new part lists for $4600, so that was out!).

It took several tries but finally I had even that wind sensor working and I engineered a vertical spar. 


Hoorah! 

wingssail images-fredrick roswold  Wind Data Works! 

Well, I still have to do some work, including a new mount must be made for the wind unit, and some other parts need to be fabricated to install the stuff, but it looks like we could have newer instruments for a pretty good price (fixer – upper instruments). 

Of course we don’t know if they will really work once they are all installed, or how long they will last, and honestly, I’ve been pretty proud of how long we’ve kept the old ones working, and I'll be sorry to see them go, but I think it’s worth it to try this. 

wingssail images-fredrick roswold  Nikon Down 

 Now if only I could get my trusty Nikon to work again. This month it died after 12 years of hard use. I’ll definitely miss that one. 

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Fred & Judy, SV Wings, Mexico

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