Submarines general topic

SpaceNut · 2023-08-13 14:47:06

I have seen it
https://youtu.be/bmXBHHBup4A?si=Qis2dbtwtvHuDCk1
Ghost ship

Mars_B4_Moon · 2023-09-15 13:44:14

Mini-Subs Could One Day Ply the Seas Under Europa’s Ice
https://www.universetoday.com/163186/mi … ropas-ice/

Mars_B4_Moon · 2023-09-16 06:38:05

more on the Russian loss of a Submarine

Russian Submarine Suffers 'Catastrophic' Damage In Ukrainian Missile Strike
https://ca.news.yahoo.com/russian-subma … 41575.html

Russian military sources have tried to downplay the damage caused to the landing ship Minsk and Rostov-na-Donu submarine.
But in their latest intelligence update on the war, the UK’s Ministry of Defence (MoD) said: “Open-source evidence indicates the Minsk has almost certainly been functionally destroyed, while the Rostov has likely suffered catastrophic damage.
“Any effort to return the submarine to service is likely to take many years and cost hundreds of millions of dollars.”
The MoD also said that “there is a realistic possibility” that the dry docks where the two vessels had been situated will be out of action for “many months” while the wreckage is cleared away.

SpaceNut · 2023-09-17 10:02:07

Why Modern Submarines Are Nearly Impossible To Detect

Columbia: The Largest Submarine Built by the Navy Is a Big Secret

SpaceNut · 2023-09-23 16:58:25

The USS Scorpion: The Cold War Mystery That Remains Unsolved

tahanson43206 · 2023-09-26 14:25:08

This ariicle is about the recent return of a British nuclear powered submarine, after a six month tour of duty.

The crew appear to have survived, but the author of the article considers the deployment to be "irresponsible". The crew is only 130 people. Compare that to 1060 people for eight months.

https://www.yahoo.com/finance/news/roya … 00888.html

(th)

SpaceNut · 2023-09-27 19:25:50

The large ship while it's to be considered spacious truly is a test of man's ability to live with one another.

Space however could have issues which happen due to complacency as Negligence on Board: $3 Billion Submarine Almost Capsized Due to Unsecured Hatch

Space also has less chances of a ‘Sir, We Hit a Russian Submarine’: A Navy Sub ‘Hit’ a Nuclear Attack Sub

AA15QdXc.img?w=768&h=485&m=6

In either case it's important to save the equipment and then crew for our space adventures to mars.

SpaceNut · 2023-10-03 18:42:21

Thedanger of war tactics Fifty-five Chinese sailors are feared dead after their nuclear submarine 'got caught in a trap intended to ensnare British sub-surface vessels in the Yellow Sea'

Shipbuilders 3D-printed a part for a nuclear submarine

tahanson43206 · 2023-10-31 06:04:37

GW Johnson wrote:

Electric Boat in Connecticut built a lot of diesel-electric submarines for the US Navy, from between the world wars until the 1960's, when nuclear pretty much superseded the diesel-electric. I'm not sure about the early designs, but the WW2 fleet subs and their immediate predecessors at the time of the V-boats in the 1930's were all-electric drive, with the diesels running only electric generators to keep the lead-acid batteries charged.
These fleet types were 4-engine boats capable of running up to about 22 knots on the surface, and with 10,000-12,000 nautical mile range if you slowed a bit. The Gato's were test depth rated to 300 feet, while the Balao's and Tench's were rated to a test depth of 400 feet. I've actually been aboard a Balao still on active service with USN as a Guppy-modified boat when I was young. Several of them survived in combat to depths of 600-700 feet.
A lot of the nuclear submarines are direct mechanical drive with steam turbines. Some are electric drive with the steam turbines instead just generating electricity.
Some of the WW1 designs had clutches so the diesels could drive both the generators and the propeller shafts while surfaced. That didn't work out so well as all-electric drive, in terms of reliability. This clutch thing was in the S-class boats from about 1919-to-1925-ish. Some of these served in combat during WW2. They were were 2-engine boats, capable of about 14 knots surfaced, and about 5000 or 6000 nmi range, if memory serves (which it might not at my age). Test depth was 200 feet. One of them survived grounding at 315 feet off China, running from Japanese destroyers in WW2.
The diesel-electric thing done as all-electric drive is a true hybrid propulsion system. In the 1930's it was small enough to fit in a 300-foot-long fleet submarine, and in a railway diesel locomotive. It's small enough now to it in a car. The plug-in hybrids approximate it, but not correctly. You still have a very complicated and expensive transmission accepting shaft power from both an engine and an electric motor, even with the plug-in hybrids.
Hybrid cars really should be done with all-electric drive, and you do not need a complicated transmission. The plug-in hybrids proved that the electric components have to the power and the ruggedness to serve that function. You could put the motor-generator and the fuel tank in a small trailer, that you pull only when you need the range. That trailer could also carry luggage or cargo for you. Again, only when you need it.
GW

SpaceNut · 2023-10-31 18:44:15

Life Under the Sea: 30 Fascinating Facts About Living in a Submarine

Mars_B4_Moon · 2023-11-27 05:38:23

Explorer who made the first dive to the bottom of the Marianas Trench

Retired Navy Capt. Don Walsh, Deep Sea Submariner and Ocean Explorer, Dies at 92
https://news.usni.org/2023/11/13/retire … dies-at-92
a deep-sea submarine officer, oceanographer and renowned explorer

'Ocean Explorer Recalls Dive to Deepest Part of Sea'
https://www.youtube.com/watch?v=6MXgqqmc1l8

SpaceNut · 2023-12-12 18:21:38

Navy Submarine Just Tested A Torpedo Tube-Recovered Drone

quite an interesting item to make use of...

SpaceNut · 2023-12-29 08:50:12

Many in service are coming up ill these days due to exposes The Air Force said its nuclear missile capsules were safe. But toxins lurked, documents show

SpaceNut · 2024-01-05 18:38:39

USS Columbus receives final funds as it nears overhaul completion

The US Navy’s Los Angeles-class submarine, USS Columbus (SSN 762), approaches the end of its eight-year-long engineered overhaul.
HII Newport News Shipbuilding, a US naval industrial prime and contractor for the submarine’s sustainment since 2015, has received the final funds worth $283.9m. This will see the boat return to active service sometime after December 2025, when the Navy expects the work to be fulfilled.

All I can say is that's too much time to not be available for the Navy to make use of.

SpaceNut · 2024-01-06 10:04:07

Inside a Submarine: A Glimpse into the Lives of Those Serving Beneath the Ocean's Surface

SpaceNut · 2024-01-10 20:00:22

A new X fighter is born as it is designed to replace the existing Ohio-class boomers Columbia Missile Submarine's X-Shaped Stern

SpaceNut · 2024-01-15 15:37:02

It does happen Navy fires captain of guided missile submarine for 'loss of confidence'
Not sure why and article does not have details...

Mars_B4_Moon · 2024-03-31 04:05:03

Why were passengers allowed on OceanGate’s experimental Titan sub?

https://www.youtube.com/watch?v=h4bYuSL8uVQ

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#26 2023-08-13 14:47:06

Re: Submarines general topic

#27 2023-09-15 13:44:14

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#28 2023-09-16 06:38:05

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#29 2023-09-17 10:02:07

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#30 2023-09-23 16:58:25

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#31 2023-09-26 14:25:08

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#32 2023-09-27 19:25:50

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#33 2023-10-03 18:42:21

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#34 2023-10-31 06:04:37

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#35 2023-10-31 18:44:15

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#36 2023-11-27 05:38:23

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#37 2023-12-12 18:21:38

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#38 2023-12-29 08:50:12

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#39 2024-01-05 18:38:39

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#41 2024-01-10 20:00:22

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#42 2024-01-15 15:37:02

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