Two Goofs that Aren't
--It is noted that the Balao-class submarine has four diesel engines vis the two diesels show in the engine room. However, fleet subs had two engine rooms, with two diesels in each compartment. Given that, according to my understanding, filming was done on the real fleet sub Pampanito, I'm pretty sure this isn't a credible goof.
--It is also noted that the Orlando disregards the diesel contact as a sub. While this isn't entirely worng, its important to remember that the Orlando was participating in a solely American exercise, and as a result would not have any reason to expect an American diesel.
As a side note, there are apparently several U.S.-made fleet subs still in operation with the Taiwanese Navy, nearly seventy years after being built. Now that's an enduring legacy.
"You feel the way the boat moves? The sunlight on your skin? That’s real. Life is wonderful."