Author Carleton Mitchell, who penned a plethora of seafaring stories for Yachting back in the day, was a lifelong sailor with a serious case of wanderlust. In 1968, Mitchell wrote his autobiogrphy in this publication: "Somewhere around 10, when asked what I wanted to do when I grew up, my mother has said I answered, 'I want to sail and write about it.' In later life, I have been lucky in making that boyhood wish come true-with a measure of power-boating thrown in." If you read these pages, then you have likely shared Mitchell’s dream. His statement brings us to the image seen here. It’s his 1968 Grand Banks 42 Sans Terre, which translates to "landless." And he was indeed landless-often. His first powerboat, Sans Terre, had some memorable adventures,…