They attacked Oregon using it and nearly attacked the Panama Canal.
They attacked Oregon using it and nearly attacked the Panama Canal.
There were two of them, I believe.
One was sunk in a secret location a couple miles off of Oahu. It was feared the design would inspire the Russians who, because of some Yalta treaty gobbledigook, were technically entitled to inspect such captured weapons.
The risky part of this sub design was that setting up the steam-launch rail required the sub to be on the surface for a dangerous amount of time.