Back to 400 Years of Subs Plunger, launched in 1897, failed before ever leaving
the dock. The temperature in the fireroom reached 137°F at
only two-thirds rated output. As one of Holland's employees
later testified, "They forced us to put steam in the
Plunger against Mr. Holland's advice. When we . . . put
the steam on, we found it was so hot we could not live in
her." In what must be an unwitting irony, the first U.S. Navy
submarine with built-in air conditioning was the 1935
Plunger, SS-179.