History Lesson: From Gas to Diesel

In the early 1970s the inboard powered sailboats we sold almost all were powered by 20 to 30 horsepower gas engines.  Some were Palmer but most were the ubiquitous 30 horsepower universal atomic 4.  There were the occasional Gray marine gas inboards too.  Diesel inboards were mainly confined to larger sailboats 40 feet and up.…