One of the Surprises When Drydocking the Battleship
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- čas přidán 10. 09. 2024
- In this episode we're talking about an unique feature on New Jersey's underside.
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The views and opinions expressed in this video are those of the content creator only and may not reflect the views and opinions of the Battleship New Jersey Museum & Memorial, the Home Port Alliance for the USS New Jersey, Inc., its staff, crew, or others. The research presented herein represents the most up-to-date scholarship available to us at the time of filming, but our understanding of the past is constantly evolving. This video is made for entertainment purposes only.
My wife got my chunk of the deck framed! It's not covered by glass so I can still touch it. She's the best!❤
She sounds like a keeper. Nice!!!!
She's a keeper!!!!
The wife too!
She's probably too old for me.
Actually, only the stern tube bearing uses lignum vitae wood strips as a bearing surface. They must be submerged at all times as seawater is their lubricant. Where the shaft enters the hull, there is a stern tube seal packing gland at the end of the shaft alley that keeps the seawater out. All of the lineshaft bearings right up to the thrust bearing and reduction gear box are plain journal babbit bearings in a sealed pedestal housings. Each one has an oil sump and a pair of bronze rings bigger than the propeller shaft on either side of the journal bearing. When the shaft rotates, the bronze rings rotate and their lower portions are submerged in lube oil. This action brings oil up to grooves where the oil pours by gravity into the upper half of the journal bearing. There is no oil pump, just oiling rings on the propeller shaft bearings in the shaft alleys. Oiling rings are a foolproof reliable setup.
Sometimes in the shipyard, we were required to measure the load that each propeller lineshaft bearing carries. The upper housing is removed, a jack with a scale is put under the propeller shaft, and a dial indicator is put on top of the propeller shaft. As soon as the indicator moves, the shaft has been lifted a few thousands of an inch up, you record the weight. If it falls within the specs, the bearing is properly loaded. If not, the shims on the housing are changed to put it within specs. I hope this helps.
Thank you for that. I was having a hard time understanding why they would not use babbet. Babbet is such an amazing bearing material.
These days rubber is used for "Cutlass" bearings on smaller craft. I don't know if the big ships, like container or bulk carriers, use rubber. But Lignum Vitae is pretty rare and hard to get these days. I love oiling rings! Grew up with them in line shaft bearing for the old flat belt machines.... ahh the smells. That was almost 60 years ago.
An additional comment. You are spot on in your description, one thing, making rounds (in the Navy and Merchant ships) was to make sure the rings were rotating properly.
Lignum Viate is a very hard and heavy wood. Very tight cell structures that can be polished to a mirror finish. Put salt water (not fresh so much) on it and it is slicker than snot! Plus, it doesn't wear. Another place lignum viate is used is on the focsle to run the anchor chain out over.
They are installed in a dovetail profile in the strut bearings. Modern ships use some sort of rubber polymer material, if they even have a strut bearing.
@@brucelytle1144 I miss ship repair!
Is there any way of finding an architect drawing of the setup? These little fixes really interest me and to be able to document this would be awesome
As soon as I started this video I knew what it was about. I took Ryan's dry dock tour last Saturday and he took us under the ship and explained all about this patch and the extra bearings. If you have the means you owe it to yourself to take a dry dock tour with Ryan. I drove from Chicago to Philly and stayed at a discount hotel just so I could take the tour with Ryan.
When he says this is a once in a lifetime event he is not exaggerating. Ryan in real life is exactly who you see in his videos. When we got to the part of the tour where the dock workers were pressure washing off paint he honestly stood in awe for several minutes. He then said he could watch them do that work all day. This is truly his ship, as much as any captain who commanded her in the past.
If you go get him to autograph your hardhat, I saw several people to that and I missed the opportunity. :(
...
TLDR if you can in anyway afford to take Ryan's tour DO IT!!! I am honestly considering going out there again.
If you all don't all sell out May 25th I'll go and take both Ryans and DRACHINIFEL's tour.
Wish I could do both, but at least ONE! I'm all the way over on the West Coast (inland) in Idaho and it would be so... SO expensive for me to take that kind of a trip not including all the time off work I'd have to take. It's virtually impossible for me to do, and it breaks my heart.
I so much want to tale my son to see it, but it's a lot of money on a blue collar paycheck.
Still trying to figure out how to afford it.
@@MarkJoseph81 Ah, a fellow Idahoan!
Sadly it is very far for us both and just too expensive for me as well.
@@GudrezBilly Exactly. If I had another chunk of reasons to go already planned, like a vacation and historic sites to go see all planned out, I'd lump this in with that trip. Alas, that is not the case.
(Nice "meeting" you!)
I took the tour also. It was well worth the money.
Now I'm wondering, "How many curators wide and long is it in that space?" GET IN THERE RYAN!!! LOL
@@GrumpyIanall you need is good airflow. enclosed spaces are only an issue if they're filled with stagnant air
@@GrumpyIanit’s almost like they check the air in spaces before they start filming. 👀
Ryan: this hole was made for me!
NEEDS BANANA FOR SCALE.
(please include large AND small bananas)
This is the only Iowa-class with this feature??!!?? If Ryan doesn't do a follow-up video from inside this compartment, I'm gonna take my rubber ducky and GO HOME!!!!!!!!!!!!!!!!
Always interesting to see the differences between ships of the same class. As Dr. McCoy said - "engineers love to change things".
I love that scene from The Motion Picture
🖖
A shorter shaft = a different resonance frequency than the longer shafts.
@@freightrain3023 Yes. But it depends on the structure surrounding the shaft that higher or lower frequency is worse.
Inside propellers have different nr of blades than outboard propellers. So, they excite different resonant blade frequencies. Perhaps that is one part of the problem.
Staggered engine rooms, so probably 4 different shaft lengths.
Also, more blades equals less vibration and less efficiency, all other things being equal.
An Iowa out of the water has gotta be something chock full of surprises - just so long as they’re only the good kind of surprises!
I hope you guys had a photographer on site to take "historic pictures" for the next generations to pull up on their virtual mind tablets when the curator logs in the IntraTube and posts a video about the molecularly stable kept Battleship New Jersey museum.
This was awesome.
Wait how did you type this 5hrs ago when the video was released 2hrs ago? You a time traveler?
In the future they will not be able to maintain this BB, the average IQ will be to low. Our future will be like the documentary Idiocracy.
Really amazing. You all are awesome. Your taking your jobs so seriously and providing great educational value. .
it would be really cool if they could have a drone fly around and 3d map the exterior
If it were me, id be cracking open those panels and getting a close look inside. Its gonna be the only time for the next 2-3 decades, best not miss it.
Might be an expensive can of
worms to open up there. May not go back together as easy as expected
It appears than an access plate has been removed to do just that,(The round hole). I notice that the one on the other side has not yet been removed. That may just be a pipe cover or something else but it does seem to lead into that section.
@@JoelAntoinette It's kind of a crap shoot either way. Do you goop it up and hope it seals, or do you pull the panel off to seal it, or should it even be sealed? I couldn't even guess. I would assume they scoped it and will make a decision based on that.
Might want to look up "Enclosed spaces" before following the instinct to enter bolted up spaces in metal constructs.
@@adriankoch964all you gotta do is open it up and get some good airflow in there for an hour or so
Nice report! I worked on BB NewJersey /Missouri had to be around 82 - 86 when to President decided to bring out of mothball to counter the Soviet Unions Kirov Class New missile cruiser. I worked in 02 shop . We were tasked with pulling the anchor chain out of the mud. After being mothballed in the 1967 the chain and anchor had sunk down so deep in the mud we had to bring a giant flooding crane up from Sunship to get the chain out of the mud, in took weeks... then She enter Dry dock to get her Hull , propulsion system overhauled before being sent to a shipyard I think in Alabama or weapons intergration. I remember how thick to armored hatch was on 16 in gun turret.. Truly an amazing Warships.....
Lusitania had bad vibrations too. I'd read somewhere that they eventually noticed that the period of the vibrations was four times the shaft rpm. She originally had 4 blade screws and they concluded that as each blade spun up towards the hull it sent a shockwave ahead of it that vibrated the plating like a drum head. They added bracing to stiffen the stern and switched to 3 blade screws which decreased the frequency of the vibrations. These fixes helped but never completely fixed her vibration problem. New Jersey's inner screws likely vibrated more than the outer ones because of the 5 blades and their being positioned more directly underneath the hull.
Bet'cha it's cavitation.
The great thing about modern times is, this could now be simulated and thus figured out exactly where it comes from. Assuming one could obtain an Iowa's accurate construction plans and modification addendums. Which clearly would be the greatest challenge. Without correct parameters, you cant have a correct simulation.
One of my Dad’s WW II stories is about his return to the the States from Occupied Japan on a troop ship with bad shaft bearings. A very slow trip with the ships crew packing the bearings with Army wool blankets and soaking them with oil. The ship took the Japanese current around past Alaska and Canada stopping for supplies in Seattle and the went to San Francisco much to the disgust of the troops who wanted off in Seattle, after being on board about three months.
It was also mentioned in regards to the SS United States, and they solved it by having outboard 4 bladed screws and inboard 5 bladed screws.
Seemingly the 5-bladed screws work better in water churned by the outboard screws in front of them.
Interestingly this detail was taken from the Iowa Class, alledgedly. Same as the idea of having seperate boiler rooms, which was a USN tradition.
Williams Francis Gibbs was a rather prolific naval architect, who designed Liberty ships, destroyers and LSTS s
@@LupusAries Interesting. 4 blades outer, 5 blades inner fixed the vibrations on United States, but the same configuration vibrates on New Jersey. The hull shape must have something to do with it.
I went aboard New Jersey when she visited Yokosuka in 1969 (she was in service hitting Vietnamese targets). One of the most beautiful ships I've seen (I'm a Navy brat). Those long, sloping, slender lines are incredible.
I had no idea that wood qas used for bearing material and has been used for maritime applications for over 100 years. Pretty neat stuff.
Case IH uses oak for bearings on combines. Works good
Lignum vitae is one of the densest, hardest, oiliest woods in the world. Navies have been using it for shaft seals and bearings for a loooong time. Much, much better than hard plastics such as Delrin. It's also used for many other uses, such as the sole of a wooden hand plane. Great stuff. Hard to work with in a wood shop due to it's properties.
@@fredinit IIRC, Lignum vitae was used in the first accurate sea chronometer. It was used to cut down on the internal friction of the clock.
Try 1,000 years! 😊
Wood gasket
@3:14 - Lignum Vitae is one of the heaviest, most dense woods known. It was used to make hammer heads back in the day. One other thing about that wood - it sinks. It's so dense it absolutely cannot float.
That's why its nickname is Ironwood!!! 🤠👍
At least three woods sink: Ironwood, petrified wood and Natalie Wood!
@@williamforbes5826 Ouch!
Also Palo Santo
I have a 1914 (or there about) LV shovel, made completely from the material. Family heirloom. It's about 5 times the weight of a similarly sized shovel. Funny thing... it's so oily (the handle) that you can't actually use it. It slips from your hands. Nobody in the family knows where it's from. Grandpa got it from his grandfather from his mother's side who used to tour the world, was part of the Legion and did all manner of weird things.
Ryan is definitely daring something to add those to their model.
I know I’m going to add it to mine. The more detailed the better!!!!
So many bearings were subsequently lost that we now have the Bering Sea.
GROAN !!!!
Boo-Hiss
Due to mariners losing their bearings, navigating there is difficult. …ok, I’ll leave now….
This joke is Unberable
@@williamforbes5826nahh....bahdum...tiss
When the shipyard guys said "keel coolers," I immediately thought, "left handed screwdriver" 🤣🤣 I had to stop and look it up.
Lol. I told an apprentice the other day he needed to get a left handed drill bit to remove a screw with a stripped head and he thought I was " hazing " him and complained to the HR dept at our dealer group. Of course, HR didn't know left-handed drill bits exist so they took his complaint seriously and came to discuss it with me , I showed them to her , and had her google left handed bits.
@@John-or9ccUndauntedRaceCars , a place i worked used to send the apprentices to the tool store for a long weight. i actually saw one, one day. it was about 100mm dia. and about 600mm high and had its weight cast into the top of it. a legitimate weight. it must have been for a special weighing machine. it was being used as a doorstop.
Or headlight fluid.
@@alexhemsath6235 , yeah mate, ive been chasing that stuff for years. have you found a place that sells it?
Must have been a "Z"
Those 'docking keels' are also called "skegs". There should have been a drain plug at the bottom of keel (may be covered by a keel block) it in addition to the fill plug that you show with the hose connected to it. Rudders have the same thing and are drained, the steamed out and gas-freed prior to any hot work for repairs. They are then preserved with the same preservative shown in a "fill-and-drain" procedure. Since you have the bolted access plates you can repaint the inside (hopefully with 100% solids such as Sigmaguard BT). The keels should then be air-tested via the drain hole to ensure they don't refill with water.
Yeah. I always knew them as skegs.
I really appreciate you posting all of these details about the ship. It adds a whole new dimension of understanding about both them and the many men who made them work so well.
I was on a ship that used Lignum Vitae in the stern tube but it also used it in the hull side sea chest grill hinges as bushings.
Ryan I just want to thank you for hammering out a video on this wonderful ship every single day it's been in Dry Dock. you really are new jerseys MVP.
My friend and I saw the New Jersey last September. Sadly, we missed seeing Ryan by about a half hour. I was impressed by the amount of the ship we could see just self guided. It seemed like work is ongoing to open up even more of the ship. I really liked finally being on board after watching these videos over the years. (The new teak on the deck was looking fabulous too!)
Another interesting naval history linkage to Lignum Vitae is that John Harrison, inventor of the clocks that won the Longitude Prize, used that wood as a self-lubricating bearing in his earlier clocks like the H1 (which weird as it was was already accurate enough to have claimed the prize)
and he got screwed
At my hydroelectric plant that I work at we use lignum vita for our wooden turbine bearings
My thought is to remove those panels and replace with new ones without all the holes, perhaps a single hole for inspection short of full removal. A hundred bolt holes is a hundred potential leaks and rust problems down the road. Fix it right while you can instead of another bandaid. You don't want NJ to face the next one looking like TX did going in. Make sure to reclean for painting too. It might be cool to replace a few of those through haul openings with an armourlight type glass for underwater lighting or a scuba tour of the haul as part of a class that doubles to keep up inspections. Might even get Seals to do it as part of training. By inspecting her haul they train to place charges on other nations hauls.
It was a modification done during her career, so it's historic. The mission is to preserve, not modify.
@@MisterLongShot_Official they have done lots of things that are not historic . just replace or weld over.
It's "hull." I'm sure they have a plan to make these plates tight for another 2-3 decades.
Maybe they found proof that Kilroy had been there.
Kilroy was everywhere in WW2. I think he stole Santa's powers. Last known appearance was in a Styx video.
@@Norbrookc " Kilroy was an American shipyard inspector He worked at the Fore River Shipyard in Quincy during the World War II checking the work of riveters paid by how many rivets they installed.Usually, inspectors made a small chalk mark which riveters used to erase, so that they would be paid double for their work. To prevent this, Kilroy marked work he had inspected and approved with the phrase "Kilroy was here" in more durable crayon
This claim was verified by shipyard officials and the riveters whose work he inspected. While Kilroy's marks might normally have been painted over, interior painting was a low priority in the rush to launch ships, so Kilroy's marks were seen by thousands of servicemen who sailed aboard troopships built at Quincy. A New York Times article noted that Kilroy had marked the ships as they were being built as a way to be sure that he had inspected a compartment, and the phrase would be found chalked in places that nobody could have reached for graffiti, such as inside sealed hull spaces" - "Lifted" from the Wikipedia article" - wrong shipyaard.
Maybe, still in there !?
@@michaelmoorrees3585Should probably let him out for a smoke and a sammich at least
To remove cosmoline from your battleship, first, set your drydock for 350 degrees...
Remember to preheat it😅
Cosmoline = awesome when you need it, horrible to get rid of.
@@jth877 Schrodinger's preserver.
NAVSEA still requires Cosmoline to be smeared onto the face surface of bolted together electrical Busbar joints to this day! And the Busbars have to be ASTM B700 Silver plated. Works just fine, and has for many decades.
@@stevenmclaughlin1809 Squatch253 would love it!
It is always crazy the stuff that is done on a ship. I am always amazed that more of them do not sink.
I do want to hear more about the armor, thickness of the steel on the sides of the ship.
Thanks
Keep up the good work
Mil-C-16173 Type 2 is a soft film wax based liquid, quite like LPS-3 (available in well stocked hardware stores or online). Cosmolene is MIL-C-11796C Class 3, and would be rock hard after 30 years
I've been using LPS-3 on my truck for a couple years now and I like it. I buy it in 5 gal containers and apply by spray and brush.
Thanks Ryan!
I haven't heard the term cosmoline since the 70s when all of the guys who worked at Bethlehem steel would take it and paint it on their chrome bumpers and trim for the winter!
It’s now a popular Internet meme in the gun community owing to Russian sks imports.
the Navy started putting holes in the hulls to flow sea water through the bearings on the victory ships. That is where that practice started. It worked well, and was implemented on many other navy ships like the Iowa class.
every time ryan introduces himself, i fist pump while shouting his full name coz he's about to teach me all kinds of cool shit. let's gooooo!
Fascinating bit of history.
"you can remove this panel to access the last coupling" that makes it sound simple, yet I bet those bolts are very stuck and would probably need to be torched out. And there's alot of bolts.
I'm currently building a 1/200 scale Sharnhorst , but the big Mo is my next project. No holes in the dock keels.😊
Why not the nj? I’m putting the holes in my model 😊
putting ship on blocks is ultimate "open and inspect"
I did a job years ago where we were working underneath the aircraft carrier USS Constellation in dry dock. The entire thing was sitting on wood timbers stacked together. I would have thought that there would be a better system of supporting it, but if it isn't broke, don't fix it I guess.
@@philduoos2961 Maybe the wood has just enough "give" to avert damage which could result from suspending the hull with metal.
@@SeekingTheLoveThatGodMeans7648 That makes a lot of sense!
I need to see what's inside. This is such a rare chance to get photos and video from that space!
Keel Cooler sounds like shipyard "Blinker Fluid"
They are real. Used to cool diesel, and gas, engines on many boats and ships. Also used occasionally for hydraulics and refrigeration systems. Basically a closed loop system where engine cooling water circulates through tubes, pipes or channels attached to the hull of the vessel. Takes the place of a radiator.
Send a guy to get the left handed hammer or screw driver.
Go to walmart, buy some chicken legs. Then ask the checkout girl if these are from the front or the back of the chicken. She'll check.
Gomar Explorer had keel coolers. They were removed in the 90's refit.
We've got a 24 foot steam boat, with a two cylinder compound it it. It was built in the late 1920's with a keel cooler and it worked well but was a pain to keep clear of oil! We've since installed a proper condenser and fixed the pump. So much better!
@robertthomas5906 ...on her way back ask if she can check on muffler bearings too! But for sure they'll need a discombobulated fratastat, they should be back there right next to the shelf extenders! 🤸🏼♂️🎉🍻
Nothing like new diaper panels to keep your keel fresh. Thanks, Ryan!
I am really enjoying these videos. Thank you Ryan!
Any time I've been around a dry-docked ship, albeit much smaller, I've always been impressed by the looming mass over my head. Your shot here nailed it. The mystery is nice, but until you've been under a ship of such dimentions and size on the blocks, you have no comprehension just how truly massive something capable of manouvering at 25-plus knots really is. There's "wow", and then there's Iowa-Class WOW. If you have any change left over after this, I know HMCS Sackville and Haida could use some drydock time as well...not hat-in-hand, but hat-in-hand. Canada's glory deserves similar royal treatment!
Fair winds and following seas!
So true!!! I was under a couple Spruances as a kid at LBNS, and then my ship Sylvania eons later when she was in the yard... An Iowa is on a whole other level, being 300 feet longer than my ship!!
@@wheels-n-tires1846 I remember operating with a couple during several RIMPACs while in the RCN. LOL: Our ships might have been a little under-armed, but you folks were dry so we were able to quickly reach a mutual understanding while alongside. I have a lasting and profound respect for the professionalism and humour of the USN! I'll never forget dancing the Macarena on the bouncy castle acousticly tiled fo'c'stl of USS OLYMPIA with her Captain! Good times!
The wooden bushings you speak of here, sound like the wooden bushings in a combine harvester's straw walkers that throw the straw out of the rear end of the harvester, the bushes used on the straw walkers are dry and can last years.
Awesome, thanks Ryan 🙏🤠🇬🇧
Thank you for this video.
I really appreciate the time you, Ryan and everyone has put into her.
The vibration being worse on the inside shafts is probably due to resonance. The length of the propeller shaft changes the frequency it vibrates at and in turn that frequency syncs up with the vibrations naturally occurring in the hull.
When my supercarrier was in drydock, I climbed to the very top of the mast (13 stories from the dock) & went down into the drydock & walked under the keel. It's really not that big of a deal, but not many people can say that. I had no life when I was a kid.
Starboard side inboard propeller shaft was still leaking water as of 4/20/2024. If anyone is on the fence about doing the drydock tour.... DO IT! I was a little disappointed that I couldn't walk in the Holland Tunnel but, still worth the time/expense.
I wanna see some of these New Jersey models that people are putting together now that Ryan is sharing all this new information!
Got my model ready to start. Might have to do a few mods.
Amazing engineering that went into these beasts!!!
It's quite interesting history thank you for caring so much for our heritage
Would love to know about the thrust bearings that transfer the propeller trust to the ship to move it forward.
He showed those in a crawl thru shaft alley some time ago.
Fascinating nerdy stuff! Thumbs up!
Thank you, keep working.
“Keel coolers”?? Sounds similar to the “pad eye covers” we used to send new guys looking for on the Eisenhower
there are such things as padeye covers
@@clementgoetke2385 There's also such things as "Propwash", "Flightline", "Fallopian tubes", and "K9P Lubricant".
Which is why it was always so fun to send the new guys to get them.
Though, my faves were always a "Left handed screwdriver", and a "Brass/aluminum magnet".
For us in the Army, it was exhaust samples, blinker fluid, PRC-E7s (pronounced prick-E7s), and boxes of grid squares. Same principle though...mess with the new guys and "welcome" them to the team.
Keel coolers are indeed an actual thing, there are a number of suppliers and manufacturers; they are basically external radiators below the waterline which take advantage of the high heat transfer rate when in direct contact with the surrounding water. Among the places they are used is on those towboats which move barges on the inland waterways. Often they are inset in to the hull sides although termed keel coolers.
@@Plaprad dont forget skyhooks
Found the battleship's speedometer?
I can't imagine how scary it would be to be the workers that position the keel blocks!
Thanks Ryan, I REALLY want to see this Battleship reborn as it were. Brought back into fighting strength to the modern standards and leading our fleets into the future! They certainly cant build them like they used to can they!!!
Unfortunately I just don’t see that ever happening again. As much as I would love to see it happen too, it would be too expensive and take too long. Plus to bring it up to modern standards would mean a total gutting of the ship to install new vls tubes, replacing of old equipment that is no longer viable in modern combat and in the end a new ship would be much easier and cheaper to build. That said we don’t even have the ability to manufacture key components of battle ships anymore like the armor. As sad as it is the time has passed for having the battle ships in modern service. Even the shells are no longer available and would have to be replaced. The propellant bags are gone and nobody makes anything close to them so it really is just too costly all the way around. As a Marine who has been discharged, nothing would have been better than to have those big guns hurling the huge shells at our enemies!😢😢 never again
@@robertschultz6922 In addition All that armor is worthless against modern anti ship missiles that plunge through the upper deck. It's a wonderful price of history but would just be a liability to her crew in a modern war.
Aaah yes I would definitely try to clean that oily gunk and that sea water out, dry it out and repaint the inside of the keel to protect the metal. Once all of the interior stuff is finished, then I would seal it up so that water can’t get back in there and sandblast that area and yes I would definitely repaint that area even though you can’t see it. Every inch of the hull that sits under water needs to be painted and protected. Those are my thoughts anyway. Thanks for preserving the ship and American naval history
Now is the time to begin the Space Battleship New Jersey Project!
a lot of the time vibrations are due to resonance issues. the shorter shafts might have just been resonant with their propellers at certain speeds. without modern computer modeling it would have been difficult to see the issue before the ship was built, even scale modeling wouldn't really help since the different size would change the resonance.
So Wise , Thank You
This is detail I need. Yes, I will incorporate this into my 1/3 size model of the new jersey...
Great video with lots of discovery's! Just curious, among all of the hull penetrations below the water line, have you found the penetration for the pitot meter (speed sensor)?
Fascinating!
I worked on prawn-trawlers out of Darwin in the early 90s. One skipper sent me spelunking on my back through the bilge of an old wooden boat, half way down it's length to get to the final joint of the tail shaft, with bits of fish guts and old diesel in my hair as I crawled my way though a space so small my nose was getting flattened going under the bulkhead supports. It would have been nice to have a maintenance hatch like on this ship.
Oh, I thought that it might have been the top secret mini-sub port? 😁
They put bitumen in bilge keels and spaces without access to prevent inside out corrosion. Likely the oil substance you are seeing.
Fascinating.
One of the best storyteller 😊
"Is this a feature you're going to add to your model of New Jersey"... seems like something the navy shouldn't have added to the real New Jersey.
You don't know if it'll work till you try it!
I will definetely add this to my personal Iowa. Wish me luck in conquering sealand.
This makes me want to see the BB at full speed...the trials must've been awesome!
Would really like to see a photo of that block of lignum vitae. It's a very rare and expensive wood, as is ebony.
It must be huge
Greetings from the BIG SKY.
Ryan, you are a national treasure!
Thank you for doing what you’re doing!
I grew up in jersey since I was 4yrs old till I moved to Florida last year at age 53.
Each time I watch one of your videos I get to learn more about the big j.
I never had the chance to go see the New Jersey when I lived there hopefully next time I go back I can go see her.
God bless you & thank you very much😁
My dad was a drydock engineer when he was in the Navy in the 50's. He was stationed in Brooklyn Naval Yard, and later, Sasebo, Japan. I wonder if he worked on this project?
Laser is probably faster than sandblasting when possible. Some spots will of corse need sand blasting but for keeping things clean and taking it down to bare metal laser is hard to beat.
Ryan, I understand you're under the ship right now but I have a question about the top side. When did the Navy strip the Measure 22 "Deck Blue" from the decks and go back to natural teak?
Its the blades chopping into different flow/turbulence. It was the opposite on North Dakota class, and lots on this if read on the B36 with it's 18 ft three blade props.
Vibration depends on the resonance. Resonance occurs when the structure length is a multiple of the wavelength.
We saw the mighty Mo in Bremerton back in the 70's Pa got one of the barrel corks from the sweet 16's . I latter met the man who was the babbitt bearing expert there for over 30 years .
Only requirement to be a babbitt expert is be the guy willing to do it.
when i get a model, ill add this detail for sure.
I was handed a fastener diagram by an engineer on a structural carpentry repair project. It looked a lot like that grid of bolts.
Also known as the... "Inboard muff".
Our motto was..."No muff too tough". LOL
Navy: it’s not a bug it’s a feature
It's a mounting point for when the BB62 becomes a full scale model in some rich gal's front yard,
I do marine painting and the number of times i have had to talk to a boat owner about random leaks out of Tanks, Voids, or other parts of boats when liquids should be staying or shouldn't have gotten in the first place is shocking
A serious journey of continual discovery.
The bearings are probably acting as a flexible coupling that dampens the vibration. Quite ingenious to be honest. Might be worth opening up and checking if it is still good, once in 30 years and better not let stuff pass!
Oh I am putting especially since I got to see it.
So it came like that from the factory, Mr. curator! Seeing how it is, you guys are back where the thing was built I’m wondering if it is too late to put in a warranty claim?
I think it might be a secret compartment for sentient ninja dolphins.
Standing below an entire battleship. But hey, wearing a helmet! 😂😂
New Jersey, #1 in total number of shaft bearings for the Iowa class!
At 1:36 you referenced the exterior shaft coupling on the outboard shafts - and then did not show them. You showed the inboard shafts instead. Bet some folks are confused. :)
⚓🐉Tonkin Gulf Yacht Club Member 1968-69🐉 🇺🇸⚓
Ryan, do the propellers on the battleship cavitate at full speed? If so, is there any damage on the propeller surfaces?
When they dismantled the ss great Eastern, they found the skeletal remains of a bashboy and a riveter who they presumed got trapped inside when the final rivets where hammered in 😢