Re: submarine
Not trying to be argumentative, but something's not right. Sub's can't run fast on the surface. 5 knot max. Any faster and they risk cavitating. Cavitation on that big of a prop can tear them apart, or at a minimum change their noise signature. You didn't say how much of the con tower was visible, so there's a chance they were partially submerged, but still couldn't go that fast.
How do I know - spend 24 hours on surface transit through a storm just once and you'll know exactly how subs travel on the surface! Never been that seasick in all my life.
Previous home was Groton CT.
I'm not trying to be argumentative either but you are incorrect. The published speed of a Ohio Class Ballistic Missile Submarine depending which Navy, DoD, or civilian website is approx. 12 knots. The submarine pictured above just got underway from Naval Station Norfolk, Va inside of the Thimble Shoals Channel which is dredged to 50 feet so there is no way that submarine is partially submerged. Also, just by looking at the pictures above you can clearly see the bow, sail (conning tower), the hull where the missile tubes are located, and the rudder. Besides the nuclear reactor there is nothing more of a secret than a submarine propeller so no one can assume if or when it will cavitate. The noise of the water moving over the bow and into the sail causes a lot of noise while surfaced so noise is not an issue, only when submerged which is when the secrecy of the propeller comes into play.
How do I know - I am a active duty Chief Petty Officer in the United States Navy with over 15 years of active service. I have spent 12 of my 15 years of duty in Norfolk and I worked for 3 years on both Los Angeles and Ohio Class submarines.
Disclaimer - All of this info is on Navy, DoD, and public websites and also goes more into detail on History Channel's Modern Marvels.
