Came across this today: http://www.lignum-vitae-bearings.com/industries/marine/
I don't recall if the submarine I was on had this. I will have to check. Speaking of bearings, mine is out. Wound up cutting it out. I was able to extract it about 3/4 inch with my jury rigs. But the going was slow. Once I got a measurement, I sawed it out. Here is a link to my blog on FB with some pics. https://m.facebook.com/The-Next-14-Years-1011224262273851/ La Neige C&C 37/40 XL Havre de Grace MD
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