Comments by "Abraham Dozer" (@abrahamdozer6273) on "The Drydock - Episode 160" video.

" Whats the difference between naval and merchant spec construction? " Modern warships incorporate the so called "gas tight citadel" in which the atmosphere and environment within a substantial portion of the ship can be sealed off and controlled for nuclear, chemical and biological defence. You wouldn't bother incorporating such a feature in a commercial vessel. Maybe, cruise ships have climate controlled areas but they are nothing like the sealed and filtered atmosphere in a gas tight citadel.
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"Why did the River class use triple expansion engines if they were built in 1941? Weren't those outdated by WW1? " Steam turbine production required high skill levels that were anything but widespread. Reciprocating steam engines had been produced all over the place for more than a century and good production techniques were widely known. Any factory or engine shop that cold produce large railroad steam locomotives could all make marine reciprocating steam and they did all over.
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"HTP powered U-Boats" see: Royal Navy experimental submarine HMS Explorer a.k.a. "HMS Exploder". Word is that you could always spot her crew on the streets because none of them had eyebrows.
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@WALTERBROADDUS They were only just starting to. Diesel development sped up because of the war but it really wasn't "there" yet. Besides, the triple expansion steam was tried, true and reliable. There was no need or reason to be screwing around with "littoral like" experiments during a dire emergency. That's a peacetime luxury.
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@gregorywright4918 He hinted at it in the video but your post is more precise. That's why it takes six years or so to build a proper destroyer (makes you wonder what sort of tin can the Chinese are pushing out right now)
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@benwilson6145 I've never served on a ship without one.
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@benwilson6145 It's not the same as "climate control". You seal up the ship from, specifically nuclear fallout for a few weeks at a time while "pre-wetting" sprinklers wash the upper works clean of fallout. All of the major ships in the navy that I served in were built that way from 1950 onwards. Don't try that on your box carrier. You will die a miserable death. Patrol boats ... Tango Sierra ..
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@benwilson6145 A box carrier is a container ship. If the AC setting in your cabin gives you the NBCD protection that you think you need, be happy with it, I Guess. Yankee, eh? Figures.
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@benwilson6145 My mother died 27 years ago, troll.
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@stevewyckoff6904 I was on one, once in Halifax: HMCS Cape Scott. She was a Canadian-built Liberty ship which had been acquired by the Royal Canadian Navy as a supply ship, post war. Her days steaming around were long behind her and she was a floating machine shop and at the end of her life. As a young Marine Engineer we were fascinated by her triple expansion reciprocating engine and I remember an ad hoc lecture that an old hand gave us describing how the ingenious machine worked. Reciprocating steam had ended years before in the Canadian Navy with the retirement of some modified WWII Frigates in the late 50s except for Cape Scott, her sister in Esquimalt and a lonely, old Flower Class Corvette HMCS Sackville who is still with us.
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@WALTERBROADDUS Diesel wasn't well developed among the Allies during WWII. The Germans were a generation ahead of the British and Americans although the US experimented with diesel-electric drive in one class of escort. They were a bit of a flop. A couple of dozen US built Lend-Lease diesel electric built ships ended up in the RN but they were a dismal failure.The British and Americans even put gasolene engines in their torpedo boats, they were so far behind (German Schnell Boots wee all diesel and therefore far less explosive.)
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