I like Ships too






Wreckage Of USS Indianapolis, Sunk By Japanese In WWII, Found In Pacific

For 72 years since the cruiser USS Indianapolis sank after being struck by Japanese torpedoes in the waning days of World War II, her exact resting place had been a mystery.

But a team of researchers... now says they have positively identified the wreckage, 18,000 feet below the surface in the Philippine Sea.

The sinking of the Indianapolis — on its return from a secret mission to deliver components for the atomic bomb that would be dropped days later on the Japanese city of Hiroshima — became the single-largest loss of life in the history of the U.S. Navy.

Indianapolis sank in just 12 minutes, with 300 of her crew going down with the ship. With few lifeboats, many of the remaining 900 faced death by exposure or shark attack until they were spotted three days later by a U.S. Navy patrol plane. By the time they were reached by rescuers, only 317 of the crew of 1,196 aboard were still alive......The ship's destruction and survivors' attack by sharks inspired a famous scene from the movie Jaws, in which Captain Quint (played by Robert Shaw), recounts the events.






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Maud, on her way home to Norway.
 
Hollywood movies notwithstanding:

While returning to Bergen, Norway to repair a misfiring engine, the U-864 was detected and sunk on 9 February 1945 by the British submarine HMS Venturer, killing all 73 on board. It is the only instance in the history of naval warfare where one submarine intentionally sank another while both were submerged.
 
Hollywood movies notwithstanding:

While returning to Bergen, Norway to repair a misfiring engine, the U-864 was detected and sunk on 9 February 1945 by the British submarine HMS Venturer, killing all 73 on board. It is the only instance in the history of naval warfare where one submarine intentionally sank another while both were submerged.



That's an interesting historical tidbit.

Wikipedia has a good entry on the method employed by HMS Venturer to torpedo U-864 whilst both boats were submerged. It was a helluva solution but, nevertheless, still represented a lucky shot.



https://en.wikipedia.org/wiki/German_submarine_U-864

 
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Sibir is launched.

60 megawatts of power from twin nukes for main propulsion.
 


'twas another absolutely gorgeous day on the water— simply magnificent.


We followed in the path of two big bulk carriers on their outward passage and couldn't help but admire their lines when viewed from directly astern. They made beautifully symmetrical outlines against the cloudless blue sky with their bridge wings providing balance to their wide hulls. One of the vessels was owned by the Euro-Indian steel manufacturer, ArcelorMittal ( https://en.wikipedia.org/wiki/ArcelorMittal ). She was likely carrying yet another cargo of high quality U.S. metallurgical coal bound for Brasil(?), Poland(?) or Spain(?).

Their grace and beauty contrasted with the sheer ugliness of the auto carrier— the damn thing is basically a floating box. I cannot imagine the windage that monstrosity has. Obviously, aesthetics are far from the minds of those who design them. Their main objective is, of course, to come up with a vessel with the least wasted interior space. Almost by definition, that means no rounded corners if you're loading rigid cargo like automobiles.

It's amazing to contemplate just how far and how rapidly hull designs have advanced. A mere seventy years ago, freighters were tubby and had lots of overhang at the bow and stern. If you've ever seen a Liberty ship, you can't help but immediately be struck by how tiny they were and conclude that they were absolutely bound to corkscrew about in any kind of sea.

Today's 700/800/900/1,100-foot long commercial vessels (be they container ships or bulk carriers or tankers) all have large protruding bow bulbs that easily extend 25-30' forward of the bow beneath the water. When under way, it's easy to see the water being upthrust by the bow bulb and why they are effective at breaking the water. The ships, when fully laden, sit low in the water. It is astounding how little wake they create— that is a product of the hydrodynamic efficiency of their hulls. Fifty years ago, if you were on a sailboat crossing the wake of a commercial vessel, you'd be crashing and bouncing all over the place. Nowadays, you almost don't even notice.

Ship design has come a long, long, long way in a comparatively short period of time. That has happened because of advances in computing power, tank testing and hydrodynamics that permitted numerous hull shapes to be rapidly tested. The same has occurred in hull design for sailboats.


It was such a gorgeous day that I managed to sunburn my lips. This morning's shower was a little unpleasant as the water striking my lips from the shower head felt like a bunch of sharp needles. As you might imagine, that frickin' hurts.


 
CFD, computational fluid dynamics, has really streamlined ship and aircraft design.
 


For those of you who don't know what the underwater hull shape and bulbous bow of a modern vessel looks like.


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