Ah! But Toshiba fixed that noisy propeller for them. They sold them (or gave them) our plans and machinery for a super quiet prop like we had on our subs.
Thanks, Toshiba. Hope you don’t choke on the money.
I seem to remember that the Russians got hold of a bad prop design, stolen from the US by way of a sting operation (to catch a spy selling secrets). I wonder if this was it.