Analysis of information sources in references of the Wikipedia article "USCGC Triumph" in English language version.
But astonishingly, the 52-footers were not self-righting. Flip one over, and it would stay over. And not only that, but there was no provision to prevent seawater from flooding the air intake for the boat's diesel engines if it did flip over, so even if you could get it back right-side-up, it was still done for.
