I was a Machinist Mate on a destroyer USS Davis DD937. While in Vietnam we could never figure out why the #2 engine could not reach its top-rated RPM. When we returned stateside a team from the shipyard came aboard and ran steam flow tests at 4 boiler flank speed with inconclusive results. Later in 1973 we split a seam on the scoop injection for the #1 main condenser which required emergency drydocking for repair at Charleston SC shipyard. In drydock, we found that the wrong screw had been installed a year earlier in Boston. The Starboard screw was nearly 12inches larger in diameter. A real screw-up!
@seafodder6129
2 жыл бұрын
Oh, if you would only have quit typing before that last sentence... /groan 😂
@navywoman7709
2 жыл бұрын
How can this be possible...? At least you survived Vietnam and you can share with us your story now. 👍🏻⚓️
@SSN515
2 жыл бұрын
Interesting. A actual size issue? Not a blade pitch issue? I've heard of pitch mix ups but never heard of size mix ups. Just the imbalance would have buffeted the fantail and steering gear, big time. They didn't catch that on the sonar noise level tests or turn count masking tests, either. Wow. Some epic failure stuff with that one. Wonder who signed off on that?
@s0nnyburnett
2 жыл бұрын
Whenever I make a mistake working on my car or some other machine I can remember I wasn't the moron who grabbed the wrong propeller for a battleship.
@Barbarian1244
2 жыл бұрын
Quite Literally a screw up
@paulmurgatroyd6372
2 жыл бұрын
I do like the way Ryan talks about the battleship in the same way most people talk about looking after a classic car. 😄
@FavioredValkyrie
2 жыл бұрын
Ironic, it is a really old very large classic.
@FavioredValkyrie
2 жыл бұрын
Don't make jokes. She was built in the 40's.
@AnIdiotsLantern
2 жыл бұрын
Probably the most dangerous Classic Car! 😆 but it is great. Ryan clearly loves his job and cares deeply about preserving these ships and teaching others about their features and history. This stuff is important to remember. Plus it’s the right retirement for a priceless battleship who served her country well and earned the right to be pampered and admired by the whole world.
@mikemissel7785
2 жыл бұрын
The ships propellers are painted and the gland seals were properly sealed at Long Beach Navy Yard. I was a crew member from 88-91 and was assigned to #2 Engineroom
@davidb6576
2 жыл бұрын
If you can write up a description of the process and post it here, that would be helpful for the museum staff and readers.
@richcruse2689
2 жыл бұрын
Mike!!! Long time no see. I don’t know if you remember me, I was in EMO1. I am going to visit her in a few weeks. I can’t wait. Taking the tour with Ryan too. MM1(SW) Richard Cruse
@red2001ss
2 жыл бұрын
I was on USS Theodore Roosevelt CVN-71 from Jan. 2000 - Dec. 2004. We went into a drydock availability in 2004, I got the opportunity to go into the Drydock and underneath for Dept photo op. Wanna talk about the eerie feeling of being under a massive 90,000 ton ship and the huge screws/propellers.
@matthewpanfile3121
2 жыл бұрын
Was it in Newport News?
@red2001ss
2 жыл бұрын
@@matthewpanfile3121 Norfolk Naval Shipyards in Portsmouth. TR didn't go back to Newport News until 2009.
@josephstevens9888
2 жыл бұрын
I bet.
@mdb831
2 жыл бұрын
That's a nope for me.
@JohnDoe-pv2iu
2 жыл бұрын
The #4 propeller that was originally installed on the USS North Carolina is what got the ship her nickname. When conducting the shakedown of the ship after launch, she had some bad vibration issues. She was brought in and they started changing the screws, one at a time, starting with #1. This was late 1941 and the Japanese attack of Pearl Harbor occurred. People were waving and Greeting her as she passed in and out of port, for the repairs. The crew was given permission to wave and greet the onlookers and not have to remain at attention on deck. By the time they replaced the #4 screw, she was a regular show. She was literally stopping traffic for the patriotic onlookers! The people of New York were calling her the 'Showboat', and that's how she got her name. Nice video! Ya'll Take Care and be safe, John
@AlexForencich
2 жыл бұрын
Speaking of loose screws: my grandfather was the skipper of the USS Oriskany in 1972, and under his watch two different propellers fell off! As one might imagine, he was quite annoyed at having to take the ship in to dry dock for a second time to get a new propeller installed.
@Timbo868
2 жыл бұрын
I was on the New Jersey in 87. She was in dry dock. The second day aboard I got to walk underneath her. When I came up to the rear of the ship. I remember one of the screws was off the ship. It was gigantic!!! The way I remember it, the propeller was larger than a full size pickup!!!!!
@navywoman7709
2 жыл бұрын
Very impressive indeed!👍🏻
@navywoman7709
2 жыл бұрын
@@frankbarnwell____ So, a Monster Truck.🦖
@Timbo868
2 жыл бұрын
@@navywoman7709 I was thinking an F250. It's been 35 years since I saw it. It was also was sharp as a stake knife.
@navywoman7709
2 жыл бұрын
@@Timbo868 An F450 is more my cup of tea...🤜🏻 Super Duty! PS: You mean a razor sharp serrated blade/steak knife?
@Timbo868
2 жыл бұрын
@@navywoman7709 Okay, I specifically remember running my finger down the edge of one of the blades. If I push my fi get I to the blade it would have cut it. I think it was the first few days of March 1987. She was in dry dock in Long Beach. CA. She was a true Gray Lady!!!
@phillipkalaveras1725
2 жыл бұрын
I'm just happy to know we have competent people like Ryan looking out for our heritage.
@vinny142
2 жыл бұрын
It's amazing that the US has a military budget larger than the GBP of most countries and Americans have this thing about war and veterans, but a museum that shows just one of the ships has to struggle to get funded.
@Tuning3434
2 жыл бұрын
I don't know if 'only a ship' is a valid description of several units of 50.000 tonnes displacement. Remember the US has like a 50% of Washington Navel Treaty displacement limit of capital museum ships floating around.
@DeplorableBitterClinger
2 жыл бұрын
@@Tuning3434 And every example of this type of ship has been made into a museum. Is it an efficient use of resources to preserve all 4?
@Urbicide
2 жыл бұрын
Perhaps if they flew the Ukrainian flag over her . . . . .
@thegardenofeatin5965
2 жыл бұрын
@@DeplorableBitterClinger Of the ten WWII era fast battleships, we've got 7 preserved, with four of them on the East coast, one on the Gulf coast, one in California and one in Hawaii. USS Washington, Indiana and South Dakota were scrapped. Three classes are preserved; one North Carolina class, two South Dakota classes and all four Iowas. North Carolina and the two Dakotas were retired from service pretty much immediately after the war and preserved as World War 2 era ships, meanwhile the Iowa class were reactivated and modernized in the 1980's, since we still have them, we might as well scatter them across the nation so the largest number of people can practically visit one.
@DeplorableBitterClinger
2 жыл бұрын
@@thegardenofeatin5965 And I love the idea of that. But by trying to save 4/4 and 7/10 we are spreading the resources awful thin. Do we have the resources to do it or would 2/4 and 4/10 give them a better chance of lasting another 100 years?
@ytlas3
2 жыл бұрын
There used to be a prop storage yard on the "Mole" area of the Long Beach Naval Station. There were dozens and dozens of new or refurbished props from BB's to Essex Class carriers all the way down to diesel class subs. Most of the props had metal blade guards and the large props were covered in wooden "dog houses." In the mid 90's the government put all the props up in a group auction. The winner showed up with a large flat bed and a portable band saw and managed to clear out that yard in a few weeks using very little extra labor
@stevetodd2424
2 жыл бұрын
Yep i remember those. As a kid, I used to play baseball on the mole. Also was there when the Queen Mary came into Long Beach. My father was stationed there at the shipyard and onboard ships. He also made Master Chief there and Warrant Officer.
@garydewitt8816
2 жыл бұрын
Sometimes a ship will get a slight bend in the shaft, this happened to the USS Eldorado LCC-11. When leaving dock a mooring line got caught in her screw, all back full was ordered and before all stop could be answered the line pulled the shaft out of alignment. A dry docking was able to get the shaft almost straight. Our top speed was rated at 18 knots, however, with the very slight bend in the shaft at 14.55 knots she would shake all the switches on the electrical distribution panel open. (That happened during reftra and we flew 2 black balls in the middle of the entrance toSan Diego harbor for 2 hours.)
@JohnDoe-pv2iu
2 жыл бұрын
I don't know about all the ships but some of the large ones have a unit called a 'Jacking gear'. When the ship is anchored and the screws aren't running the jacking gear uses an electric motor and a gearing system to very slowly maintain a slight rotation of the propshafts. I'm talking about very slowly. I don't know the exact speed but under 1 RPM! The screws are so heavy that they will get bent from 'sagging' if they weren't turned. As I said, I don't know about which ships have this. I just know that, in the 1980s, the USS Midway did. Ya'll Take Care, John
@Urbicide
2 жыл бұрын
@@JohnDoe-pv2iu Steam turbines, in electric generating power stations, have to be kept in rotation even when they are not being run to drive the generators. If not, gravity will cause the turbine to develop a sag. If that happens, then the turbine has to have a major overhaul involving truing of the turbine shaft & all of the associated bearings.
@tommullaney8714
2 жыл бұрын
Ah REFTRA always a blast!!! 😆 endless GQ and drills. I dont miss that one bit...
@Convoycrazy
2 жыл бұрын
Greatly enjoyed this video - thanks for showing us that preserved screw. You’re getting pretty good at non-scripted video banter. 10/10
@Tomcatntbird
2 жыл бұрын
I was in the Navy from 97 to 2005, I was on board the USS Guam lph 9, USS Peterson DD 969, and the USS Carter Hall lsd50. All the ships have what you call a jacking gear when we're not moving in port that slowly rotates the shaft and propeller to prevent the shaft from sagging and or any damage to the shaft seals. The ship's also have a cathodic protection system that is very effective against corrosion on the ship's hull. I'm wondering if either of these systems are used on a museum ship, if not I would see that's a major problem.
@zoopercoolguy
2 жыл бұрын
IIRC, New Jersey never received the cathodic protection system during the 1980's refit.
@edfrawley4356
2 жыл бұрын
Ryan here is an idea for putting aluminum anodes on the ship. It would require an underwater welder (hopefully a volunteer) You can obtain aluminum ingots just down the street from the ship at State Metal. Have the welder clean the hull plates and weld some heavy bolts to the hull then drill bolt holes to match the bolts in the aluminum bars and have the diver bolt them in place. If the diver is a volunteer you can do it for a few hundred dollars. (depending on how many are required) If not then a few thousand. It would be well worth the effort and cost in preventing future repairs in drydock.
@w6krg
2 жыл бұрын
That's what I was going to suggest. Thanks, Ed, for beating me to it! :-)
@divarachelenvy
2 жыл бұрын
I will have to give you props for this ep Ryan ...
@Joe_Blow215
2 жыл бұрын
Another issue with removing the propellers is that someone might steal them and use them on their plane. Plane propellers are very expensive
@qwertzundefinedapfel3830
2 жыл бұрын
Should be easy to trace, though. There aren't that many planes which leave a trail of mounds behind them.
@stevepotthast4911
2 жыл бұрын
That would be one hell of an airplane to take a 44,000 pound propeller
@johnstudd4245
2 жыл бұрын
@@stevepotthast4911 A little bit different of a design also. ha ha
@petewarrell3734
2 жыл бұрын
😆🤣🤣🤣
@fjb6407
2 жыл бұрын
It would be funny if when the propeller's on the plane they find that it rotates the wrong way.
@chrismaverick9828
2 жыл бұрын
USS Cod just completed a long-overdue dry-dock to restore some metal that had deteriorated considerably. Much of this was likely due to the Zincs on her for many years being the salt-water variants rather than the fresh-water Aluminum ones she should have had. Please, PLEASE, get those Aluminum anodes on the NJ as soon as possible.
@tihspidtherekciltilc5469
2 жыл бұрын
I lived in the industrial area of Chesapeake VA for a few years and watched the process of balancing a screw this big. So many different factors other than just balancing like a wheel on a car with hand held grinders doing the final machining.
@carlwogomon5787
2 жыл бұрын
I love the way Ryan goes into great detail about everything.
@timb83
2 жыл бұрын
"How are you gonna steel an 18" bronze propeller" well, we (power plant) had a million gpm river water pump impeller stolen from the shop that was reconditioning the pump. We later found it in a local scrap yard, and they had already started cutting it up. So we went a year operating at half load while we waited for a new impeller to be manufactured.
@jameshardy4946
2 жыл бұрын
Stealing an 18” propeller is easy. I have at least 4 13”x13” propellers decorating my living room. A good example of this happening can be found in the movie “This is Spinal Tap”.
@richardmillhousenixon
2 жыл бұрын
@@jameshardy4946 Stealing an _18'_ propeller on the other hand, is not so easy
@vburke1
2 жыл бұрын
Almost certainly the fact that she's sitting in fresh water makes a MAJOR difference in dissimilar metal corrosion. Salt makes water a much better conductor of electrical current.
@SSN515
2 жыл бұрын
Yep.If we were idle for longer than a week, all condensers, coolers, and seawater systems were drained and filled with freshwater for layup.
@Dayandcounting
2 жыл бұрын
Wouldn't the water their be brackish.
@johnslaughter5475
2 жыл бұрын
Shane, over at USS The Sullivans, said they had to ballast down the stern of the ship when her screws were removed. You'd probably have to do something if you remove over 80 tons. When we were making plans regarding what to do when we got Ranger as a museum (didn't happen 😒), we were going to put 2 of her screws on display, as you have with that one, and then we were going to have the other 2 melted down and recast as miniatures 3" & 5" in diameter to sell. I see no reason you couldn't do that. After all, you'll never see NJ's screws except in periodic drydocking, or by a diver. Sell the miniatures for $5 and $10. That's a nice chunk of change.
@SSN515
2 жыл бұрын
You could have gotten together with Buck Knives and had a Commemorative Buck 112 "Ranger" knife made and sold those, too. The Ranger XO forbid the Buck 110's in 1972 because some guys stabbed each other in a squabble, so Buck made a shorter blade 112 to sell and carry onboard.
@johnslaughter5475
2 жыл бұрын
@@SSN515 I haven't heard about that. As the ship's online historian, I have a responsibility to look into it. I live 25 miles from Buck Knives in Post Falls, ID.
@SSN515
2 жыл бұрын
@@johnslaughter5475 If you go to their website, they'll probably have something about that history. I know they are doing a 50 year celebration of the 112. I think Buck says the CO made the rule, but I knew guys from the Ranger at the time and as I recall, it was the XO who made the rule. Buck Knives was in San Diego in those days.
@gerry5712
2 жыл бұрын
Melting down a historic artifact to make a bunch of souvenirs for fundraising would likely be considered sacrilege; the aim of a museum is to preserve the ship and all its parts
@SSN515
2 жыл бұрын
@@gerry5712 I don't know if one of the props would be considered a historic artifact, because they changed out the props on these guys during most drydockings. The shipyards have giant "prop yards" with hundreds of old and new propellers laying there, in the elements. Nobody really sees the props in the water, either. I think taking a prop and melting it down is the same as New Jersey selling the old Teak deck wood. They aren't saving it and putting it on display.
@paulfennell01
2 жыл бұрын
hey ryan great tour today with my wife i was honored to meet you thanks for all you and the rest of the crew do over there, awesome day!!
@nickjohnson410
2 жыл бұрын
Super Cool someone had the presence of mind to save and donate that Prop.
@mikebrase5161
2 жыл бұрын
Awesome, I'm a Propeller tech I've been building or repairing ship propellers since 1996.
@AbrasiveCarl
4 ай бұрын
That's actually really cool that the scrap yard donated it for display... They lost a good chunk of money doing that.. But so glad they did!
@nealm6962
2 жыл бұрын
Thanks for all the great work you and your team are doing. Guess you better hop on the anode thing.
@wfoj21
2 жыл бұрын
Several comments - now versus then 5 years between Dry Docks (he said 2) for active ships. Active Ships - "shaft always turning"- what about inport? Actually - a good portion of time in port the "jacking gear" is engaged - and the shaft is Turn - Slowly -avoid the issues described (Slowly - minute per revolution - instead or reverse revolution per minute "to be going"
@ghost307
2 жыл бұрын
We use turning gear on the big stuff in power plants; but it's done to keep the shaft turning so it doesn't sag. Turning the shaft doesn't extend the life of the packing where the shafts exit the hull.
@SSN515
2 жыл бұрын
You Jack daily for 11/4 turns for PMS when inport cold iron. But you have to have a closed lube oil system and engine, which you usually don't have because of equipment tag outs and maintenance. You continually jack when lighting off for underway and when cooling down after plant shutdown. BTW, you have to heat the lube oil to 90 degrees before you can start jacking.
@zetordaft
2 жыл бұрын
@@SSN515 I’m curious as to how the Iowas survived such long periods in reserve (particularly BB’s 61,63 & 64 that were laid up for 30ish years between the 50’s-80’s) without periodic jacking and movement of other heavy machinery? People claim that the shafts and bearings will be ruined now due to all 4 ships approaching 30yrs out of service but how is that different from earlier periods of inactivity? I know they have had no maintenance to the machinery as museum ships but it seems they had just as little during their time in the reserve fleet
@SSN515
2 жыл бұрын
@@zetordaft In mothballs, they seal everything up and put desiccants into a lot of machinery and equipment. They put the boilers under a pressurized nitrogen "lay-up". The main engines, reduction gears and condenserrs have huge dehumidifiers placed on welded I-beams with ducting routed to various areas. Same with electronic spaces and gun turrets. Line shaft bearings. Hull blanks. "Igloos' installed. Cofferdams.And as I wrote in another answer, the shafts and props have a marked on the reduction gear "docking position' for weight distribution and main shaft and propeller positioning. The hulls have electronic cathodic protection equipment installed. Costs a lot to keep them around in Reserve.
@pastorjerrykliner3162
2 жыл бұрын
I would guess that a positive of removing the screws would be that you can blank over the shaft opening, thereby lessening the chance for water intrusion and flooding. I would wonder if a negative would be that it could/would affect the overall balance and buoyancy of the ship which probably would need to be addressed through ballasting?
@pastorjerrykliner3162
2 жыл бұрын
@Andrew Crews, well...yeah. But there's no point in having a shaft sticking out without the screw on it. So, yeah...I would guess that if you took off the screws you'd take the prop shafts as well...at least as far as they stick out beyond the hull.
@LawF250
2 жыл бұрын
I don't think it would be heavy enough to really notice them being removed
@AnimeSunglasses
2 жыл бұрын
@@LawF250 well, as Ryan mentioned, they ARE heavy enough to make a difference. The prop shaft seals (which he refers to as gland seals here) do last longer without the weight of the props...
@SSN515
2 жыл бұрын
@@AnimeSunglasses Yeah, but you can put another ring or two of packing in there and dog down on the packing gland. Those shafts don't have to rotate any more and that will keep the water back for decades.
@mammutMK2
2 жыл бұрын
@@SSN515 i think the question is in what state you want to keep the ship, seal everything of as good as possible or keep the ship kinda operational, you could weld everything shut and have a second layer or even from both sides 3 layers of protection, but the shafts won't be operational anymore.
@xrayperforator
Жыл бұрын
Great piece of information about the dissimilar corrosion 👍
@tupublicoful
2 жыл бұрын
Just visited the Battleship New Jersey in Philly. Amazing tour, highly recommended.
@nstooge
2 жыл бұрын
Thank you for these videos and the nuggets of knowledge they provide.
@MartinCHorowitz
2 жыл бұрын
I like theway the Queen Mary displays the props on the ship
@timengineman2nd714
2 жыл бұрын
USS Saratoga (CV-60) had 33 foot diameter screws, but she was also heavier than the Iowas.
@AvengerII
2 жыл бұрын
There are at least 5 aircraft carriers screws that were preserved -- all 4 from the USS Intrepid (CV-11; removed during her 2006 renovation to make it easier to move the ship in the future for repairs) and one propeller from the USS Shangri-La (CV-38), also an Essex-class carrier. Shangri-La was scrapped in the late 1980s or early 1990s. Shangri-La's propeller sits in front of a restaurant in New England. The Intrepid's propellers were dispersed to 3 different locations. 2 are on the grounds of the Intrepid museum itself -- 1 on the carrier in the hangar deck area and 1 on the dock area in front of the carrier. Another propeller is in the Naval Aviation Museum at Pensacola and the last one I think is in a park in Virginia. I'm presuming all other preserved carrier museum ships (the other Essex-class ships and the Midway) still have their propellers attached as well as the USS Oriskany which was scuttled in 2006 in the Gulf of Mexico. I don't believe the screws were saved from any of the supercarriers (all four Forrestal-class vessels and the USS Constellation/CV-64) that were scrapped. I think the screws for the USS America are still attached to her hull 15,000 ft or deeper in the Atlantic. I'm presuming they'll scrap the screws for the USS Kittyhawk (due to arrive in Brownsville, TX later this month) and USS JFK/CV-67 as well. The thing with screws is that during the life of ship or run of a construction program, they get changed because of damage and also to improve performance and efficiency. Pitch angle gets adjusted and even the mounting wings may be different between ships. This means the screws probably can't get reused for newer ships as older ships are taken out of commission unlike anchors and anchor chains. The other thing is that as ships get used, the propeller blades get pitted or damaged. When this happens, they change blades. You can't just patch/repair damaged blades; the stress and vibration propellers undergo in motion would probably undo any patchwork. Basically, at a point, you have to melt down the metal if you want to reuse the blade!
@davidb6576
2 жыл бұрын
@@AvengerII Great comment, thank you!
@AvengerII
2 жыл бұрын
@@davidb6576 You're welcome!
@johnstudd4245
2 жыл бұрын
@@AvengerII It did not look like the prop displayed here had blades that could be bolted on and off.
@SSN515
2 жыл бұрын
If I recall, from my EOOW days, correctly, 4 bladed (2) at 18 1/4 feet diameter, 5 bladed (2) at 17 feet diameter. Let's see if I remember correctly.
@mrb692
2 жыл бұрын
Spot on!
@dougjenks6954
2 жыл бұрын
Good guy to have involved with this gem .
@loyalrammy
2 жыл бұрын
In 1987, my ship (DD-992) and the battleship Missouri were dry docked together at Long Beach Naval Shipyard. I saw the Mighty Mo heave to on the other side of an Oiler as we were taking on fuel at sea, which was impressive. However, seeing that massive ship on blocks in a dry dock was something else!
@ytlas3
2 жыл бұрын
In 1987 the USS Fletcher was in dry dock #3. The battleship you saw in dry dock #1 was the New Jersey. USS Missouri was dry docked at LBNSY in 1984 and 1989. I have the official dry docking records from LBNSY from the Dockmaster and Supervisor of dry docking.
@loyalrammy
2 жыл бұрын
@@ytlas3 That’s possible. I thought it was the Missouri, but I guess I only saw the Missouri underway.
@loyalrammy
2 жыл бұрын
@@ytlas3 So I actually saw the screws of the New Jersey! I’m one up on Ryan, lol.
@dutchman7216
2 жыл бұрын
Thankyou for your work.
@solo2r
2 жыл бұрын
My Father was part of the Crew that put the 'box' around one of the Queen Mary's props. It would be great to see a box around the 2 different sizes on the NJ but cant imagine how much that would cost!
@ronblack7870
2 жыл бұрын
i saw that years ago in long beach. really cool how they did that so you can see the screw.
@bobberger918
2 жыл бұрын
Seen screw in 1987 was in long Beach 70 to 72 dd830 had family on the gueen
@123toysoldier
Жыл бұрын
Ryan, why can you not remove propellers and put them on the deck in the in use configuration. They stay with the ship, you can set up an interesting display I am sure. Just a thought. You do a pretty damn interesting batch of videos. Thank you so much for knowing what it is your are describing and relating. It shows your devotion and care over one of our cherished reminders of America's greatness. God bless you and God bless the U.S.A.
@mikewalker4330
Жыл бұрын
Another excellent video. Thank you Ryan.
@ghost307
2 жыл бұрын
Thanks for the link to the Buffalo crossover video. I learned a lot about how to rub a ship in both directions.
@tomasthomas8563
2 жыл бұрын
In case you really need to replace any of the 4 screws, I know where there is one for each shaft. Hanging at the end of the propeller shafts of the USS Midway. These were changed after the Midway got her angled flight deck to keep the launch speed up to critical speed.
@holdmycoffee4470
2 жыл бұрын
Two comments, as a Midway decom crew member Y'all keep your fingers off the "Tip of the Sword!" Also, according to my copy of the Midway's Propulsion Plant Guide, the outboard (shafts 1 & 4) props are 4 blade 18'8" diameter and the inboard (shafts 2 & 3) are 5 blades 17'6" diameter. Random additional fact, Midway can go from 0 to 33 knots in 32 minutes!
@johnstudd4245
2 жыл бұрын
@@holdmycoffee4470 So are they very close or identical to the Iowa class ships screws? If so could they have interchanged them if necessary?
@holdmycoffee4470
2 жыл бұрын
@@johnstudd4245 I don't know if they are exact replacements. But they are very similar. About the same size, same blade configuration ( 4 bladed outboard and 5 bladed inboard). The ships are similar in size and were built with in a couple years of each other, so it's not out of the question. My point though was that it wasn't like putting a V-12 Ferrari on a scoreboard, what ever that means. Are the shafts the same diameter? Are the hub tapers the same? I will see if I can find that out about Midway. So we can actually get an idea if they would work.
@johnstudd4245
2 жыл бұрын
@@holdmycoffee4470 Yes, I wondered about standardization of shafts and mounting issues and that sort of thing. I'm sure you are not going to hang one of those props on a Fletcher class destroyer, but a Midway class carrier, would seem to be doable, as displacement and shaft horsepower are about the same. Oh, and watch out for those kids on the playground who want to beat you up.
@PrezVeto
2 жыл бұрын
Can some aluminum sacrificial anodes not be attached to the ship by divers? I'm sure it's harder than when she's in dry dock, but I can't imagine it isn't much cheaper than dry docking, so I'd think it might be a good option in between dry dockings, provided it's physically feasible.
@ranekeisenkralle8265
2 жыл бұрын
I'm not an expert, so please take this with a grain of salt.. but I think the problem is that there might be remains of the current zinc anodes still in place, which would probably need to be ground off first, before new anodes can be put on in their stead. Otherwise you would need to make new welding spots and in doing so remove some of the protective hull-paint, thus exposing more of the ship's ferrous metal to water. And given the size of the ship, we are probably talking a LOT of anodes here. Meaning even if it is possible, it would likely be prohibitively expensive both in terms of money and in terms of time required.
@dandan3147
2 жыл бұрын
I don’t really know about how zinc’s are attached to large ships but, they’re bolted onto most smaller craft. Just a shot in the dark here but, I’ll bet the tools alone to bolt something like that onto a battleship are huge. The zink’s/aluminum are probably pretty big too. If it were sailboat sized, no problem. It’s got to be a big 40+lbs brick on a battleship.
@carneeki
2 жыл бұрын
@@ranekeisenkralle8265 curious to know how the welding would work given that both zinc and alu have a much lower melting point than steel. Maybe they could be brazed on with alu / zinc filler? Bolting on might be even easier again, though maybe the attachment point is what gets welded and then the anode screwed to that?
@ranekeisenkralle8265
2 жыл бұрын
@@carneeki Frankly I have no idea how exactly the anodes are affixed. Welding just sounded like the most feasible answer since any screw would also add another metal into the mix...
@ryder6070
2 жыл бұрын
This is obviously a "flex seal and bonder" job
@mtmadigan82
2 жыл бұрын
At a military dive school we dove and attached fake limpet mines under large commercial and military boats. Those screws always were terrifying. If those got a power increase, odds of pulling away from it was miniscule.
@shakeydavesr
2 жыл бұрын
Thank you, I now have a new nightmare to have,,, lol
@daveash9572
2 жыл бұрын
When you said the prop was mounted "in a traffic circle", do you mean a roundabout?
@michaelinsc9724
2 жыл бұрын
Would it not be possible to affix aluminum anodes to the hull to help prevent dissimilar metal corrosion?
@fidjeenjanrjsnsfh
2 жыл бұрын
@C B but it's not rotating so cavitation is no longer an issue
@adub1300
2 жыл бұрын
@C B pitting is on the screw the corrosion happens to the hull and other ferrous metals nearby
@Supersean0001
2 жыл бұрын
Pretty sure he know this. USS Cod, which came out of drydock not too long ago and is a museum submarine in Cleveland, had aluminum anodes installed about every 6 feet down the length of the hull; looked like overkill to me, but the museum staff decided they wanted as many as they could get. Even with a submarine's nice thick pressure hull, and sitting in fresh water since the 1950's, she still had significant pitting of the hull. IIRC, Cod's screws were removed long ago, so it's definitely not to protect the screws -- it's to protect the steel of the hull.
@31dknight
2 жыл бұрын
Great video from the battleship.
@philgiglio7922
2 жыл бұрын
The DDE Samuel B Roberts on her very first deployment, Atlantic convoy duty, struck a whale shortly after sailing. After repairs she went to the Pacific where she was sunk in the battle of Leyte gulf, but not until she performed heroically
@raitchison
2 жыл бұрын
Rumor I heard is that one of the main reasons why Intrepid doesn't really resemble a ship from the interior anymore is because when she was drydocked in 2006 her screws were removed, when she was refloated and back in place the NYC fire marshal declared that it was no longer a "ship" without the screws and as such was subject to many other ADA and fire safety regulations that museum ships are normally given some leeway on. Net result is huge picture windows and wide staircases leading from the hanger deck (which is almost unrecognizable as a ship interior) to the flight deck.
@dewikle2
7 ай бұрын
I like the way they display the propeller on the rear deck of the NS Savannah….
@jakeaurod
2 жыл бұрын
Could you permanently leave the ship in a dry dock designed specifically for displaying it? Maybe there could be an artificial waterline of glass or acrylic that is the roof of a lower gallery where people could walk around it and see the screws and the towed sonar, etc.
@barklet6110
2 жыл бұрын
The only problem is that the ships are designed to have the water support them, with out the water it slowly pancakes out
@philgiglio7922
2 жыл бұрын
DD 661 USS KIDD is on display in Baton Rouge. She sits in a cradle and is completely out of the dry when the Mississippi is low, but she appears to be floating when the river is high. You Can walk all around the hill as well as inside. She has also been completely restored to her WW 2 configuration
@duuurs
2 жыл бұрын
USS Hazard (AM-240) is a ww2 minesweeper displayed on blocks here in Omaha, NE. She's holding up fine, and will float when the Missouri River comes out of its banks. (3 times since 2000). Doesn't seem to be a problem for her.
@fidjeenjanrjsnsfh
2 жыл бұрын
@@barklet6110 j think that issue only arises when in dry dock since due to the nature of needing to work under the ship, the ship sits on pillars that concentrate the weight only on those locations, thus the pancake issue. However if you pour concrete all over up to the 'waterline', the weight would be equally supported in all directions
@snupjeve
2 жыл бұрын
@@fidjeenjanrjsnsfh - but concrete produces it's own problems. Ryan and NJ museum got that question and covered it as well. Pancaking addressed, but corrosion worsens. kzitem.info/news/bejne/km2t1JptnpqUjaw
@floridag8rfan
Жыл бұрын
I think at least one off the ship and displayed is ideal. I haven't been to the New Jersey, but I did visit the Wisconsin last year, and the afterdeck was just an empty boring expanse, except for the empty aft gun tubs. Maybe one (or two) could go there for display.
@randelbrooks
2 жыл бұрын
It would be nice to trim the bushes back a little bit on each side so we can see more of the propeller. I think the public would like that.
@rabidbigdog
2 жыл бұрын
As I understand it, the four vs five blade propellers was an attempt to address full ahead vibration.
@JohnThomas-lq5qp
2 жыл бұрын
Camden is such a crime ridden getto surprised nobody took a torch or saw to steal part of the rudder. Worked on a busy Philly street and 3 guys stole 50' of large copper Cornish off roof around 6 PM during daylight and only 2 blocks from one of the busiest police departments.
@johnwells9839
2 жыл бұрын
Ha ha it figures in filth adelphia
@dynamicworlds1
2 жыл бұрын
There's a difference between "it looks like they're doing some roof work up there" and "hey, they're cutting apart a historic artifact at street level at an intersection" As often is the case, reality resists such simplicity.
@philgiglio7922
2 жыл бұрын
Knew of a case where a stolen car was parked in front of the police station. For weeks, and the cops never twigged
@Joe-ym6bw
Жыл бұрын
Thats good they preserved it
@briancox2721
2 жыл бұрын
Is new Jersey big enough to store get screws on deck? Solves the problems of seal crush and corrosion while keeping them with the ship.
@benpluta3924
2 жыл бұрын
Were the screws specific to a ship type or could they have been used on another ship, shaft diameters being the same or just another of the same class?
@SSN515
2 жыл бұрын
I think those props could be used on the Midway class carriers, if I recall correctly.
@strydyrhellzrydyr1345
2 жыл бұрын
Nice... Keep the odd parts videos coming... They are cool
@sail72
2 жыл бұрын
Ryan, someone should probably trim the hedges around the propeller, they seem overgrown. If you can't find someone from Camden or a current volunteer to do it, let me know. I'll come do it myself if you let me. Love your KZitem channel. -John, West Chester PA.
@samthemultimediaman
2 жыл бұрын
should have some divers do some inspections if your not able to dry dock anytime soon.
@brucesheehe6305
2 жыл бұрын
We need more ships - ASAP. Philly Naval Yard should be opened again to construction of US Naval ships.
@nottiification
2 жыл бұрын
Looking at the dent in that one blade... i'll bet that made a helluva noise when they hit whatever that was.
@markwatson3135
Жыл бұрын
My dad was on USS Scamp SS(N) 588, when they were testing a new propeller and it came off. Needless to say being a single screw sub, they need to be towed back to Mare Island. It was in the paper and kind of embarrassing for the crew!
@yes_head
2 жыл бұрын
I'm guessing that over the long run the propellers will need to be removed. Extending the life of the ship (and saving money) will outweigh preserving an artifact the public will never see anyways (except as an external display like this.)
@davegoodridge8352
2 жыл бұрын
Here in Oklahoma City on display is a propeller and anchor from the Battleship Oklahoma. I know in Oklahomas case it isn’t possible to put it back on. But if possible propeller, anchor etc. should reman on the vessel. Keep em intact is my feeling.
@johnclapperton5556
2 жыл бұрын
I agree, here in Toronto when I was younger we had HMCS Haida on display with her props on posts next to her. I always felt that was wrong as a ship isn't complete without her props.
@RunningSwimmingMan
2 жыл бұрын
Hmmmm.... That’s quite a quagmire.... Now you’ve got me worried about what I should do with my propellers...
@spikedpsycho2383
2 жыл бұрын
amazing how something so small can move something so big
@fidjeenjanrjsnsfh
2 жыл бұрын
Like wings on a bumblebee?
@dmprdctns
7 ай бұрын
Thanks...
@jaquigreenlees
2 жыл бұрын
That particular alloy used I think is what is called Nibral of propellers available now.
@drubradley8821
2 жыл бұрын
I would "assume: also, if all 4 screws were removed from the ship, due to the combined weight of them, wouldn't the back end of the ship come up out of the water a bit? I personally do not have a clue how much, but, then to level the ship out, that would require ballast tanks be filled to comp the missing weight, again, "assuming"... which if that being the case, water rusting the inside faster now?... I could very well be 100% wrong on my assumption....
@benni5941
2 жыл бұрын
20 tons each, 80 ton total versus 45,000 ton ship. If it were a straight percentage, then an inch or so difference, but the shape of the hull changes that, so probably wouldn't be easily measured.
@arthurjenkins9757
2 жыл бұрын
It be barely noticeable
@drubradley8821
2 жыл бұрын
Right on. I forgot about the biggest part of that equation, "the weight of the ship"
@aserta
2 жыл бұрын
I wonder if it's impossible to disconnect the shaft from the motor and rotate the blades by other means. Speed is not in question, rotation is. So every two months (with a pinch of salt on the statement) wrap a cord around it and pull. That would give the seal its relief. Otherwise, if it's possible to design a brace that is mounted unto the hidden part of the hull which pulls the blade up just enough to negate the weight. Just thinking out loud...
@brianedwards7142
2 жыл бұрын
It isn't just the size of the screw that matters. Hey, I was raised on Carry On movies and Are You Being Served? You can't expect me to NOT make a double entendre with a title like that.
@brianedwards7142
2 жыл бұрын
Leonardo was working on the biggest bronze statue ever: an image of Lorenzo De Medici on horseback but Lorenzo was engaged in a war at the time and had it melted to make cannons. Posterity is no protection.
@thurin84
2 жыл бұрын
bravo to bongivoglio family!!! im sure the propeller represented quite a tidy dollar amount.
@Dayandcounting
2 жыл бұрын
A screw was/is an early type of propeller like many naval terms it stuck kind of like sailing.
@byronharano2391
2 жыл бұрын
With all the ailments plaguing the US Navy concerning surface combatants procurement and failures (DD 1000 class as one example) along with rising global threats to sea lanes. Anyone else believe that the US Navy Admiralty secretly wishes at minimum one Iowa Class BB was kept in active service and updated for the modern battlefields at sea? USS Missouri is berth in my home State. I hope everyone gets an opportunity to visit both the USS Missouri and USS Arizona memorials. Oh...USS Utah is often forgotten as a 3rd BB memorial at Ford Island, Naval Ship Yard Pearl Harbor. God bless our USA. Thank you USS New Jersey museum staff and crew members. Anchors Aweigh ⚓
@johnstudd4245
2 жыл бұрын
It's a nice thought, but there are a whole boatload(no pun intended) of reasons why they did not do that, and never will.
@byronharano2391
2 жыл бұрын
@@johnstudd4245 I know John. You are correct
@jaycrank8163
2 жыл бұрын
Why not have a fiber glass panels that have a walk way built into it to keep it away from the haul of the ship. then pump out the water to remove the water part from the formation of rust. Have a form in tubes to make walk ways and keep the distance from the fiber glass away and cradle the ship and seal the compartments to stop water entering the void. Another way to think of it is having a caissons against the haul and you can have members of the public walk around the ship.
@bradjames6748
2 жыл бұрын
I hope you can do a story on uss the sullivans and the recent sinking and recovery
@Hamann9631
2 жыл бұрын
I think I read that a museum ship in the Great Lakes doesn't have its propellers because of a treaty with Canada.
@spikedpsycho2383
2 жыл бұрын
Many ask why ships us propellers opposed to pumpjets...Low efficiency at low speeds. The waterjet propulsion system has a lower propulsive coefficient than standard propulsion systems at low speeds. The thrust force is dependent on the change in momentum, and the water-jet develops less thrust at low and intermediate speeds because of the inherent difficulty it has in handling large mass flow rates at low speeds, whereas the opposite is true for conventional propellers. * Clogging. The seawater intake grill can become easily clogged with sea debris.
@wolfhalupka8992
2 жыл бұрын
about the props on the ship... puttin on my engineering hat, I would get them removed to protect the gland seals, unless one could find another way to take care of them (could one turn the shafts slowly, somehow from time to time, like with a turning gear on a Diesel plant?)- however, looking at the financial aspect- I can very well imagine that some clever pencil shover would calculate the value of such a prop and have them scrapped, or sold to a foreign collector, to rake in that cash, which would leave the ship without her props. so, in the end, keeping them where they are supposed to be in the first place might be best, having a close look at those seals.
@buddyb4343
2 жыл бұрын
What would be the lilelyhood of ever needing the props to move the ship again? I would think in servicing the ship, replacing the props would normally be accomplished in drydock. To do that on a museum ship would potentially mean arranging a DD visit which might be more difficult, or could a dive crew drop them off the ship while submersed? So leaving them on (and perhaps turning them over every so often) would seem more practical. (Like when they reverse the Constitution every so often.) Or at this point do you feel the the ship will eventually become a husk? (A sailing ship doesn't have a lot of moving parts compared to more recent "mechanical" ships.) So you are really just slowing the losses over the next 2-400 years? (What is the real expectation for the longevity of the ship from here on out? A nice topic in and of itself.)
@russellhltn1396
2 жыл бұрын
The likelihood of needing the props: zero. They're not allowed to fire up the steam plant that propels the ship.
@murraystewartj
2 жыл бұрын
Your last question is important. Keeping a museum ship in water (or contact with water) without the regular dry docking it would receive when service is problematic - just look at USS Texas or USS The Sullivans. Like New Jersey and so many other museum ships, they are supported by grants from states, perhaps a few rich donors, but mainly by tourist traffic and, of course, many dedicated volunteers. And that is still not enough money or labour to do important hull repairs. What is the life expectancy of these exhibits? Museum curators the world over struggle to balance money with protection of the past, and many artifacts are locked away in climate controlled storage because there isn't the room to show everything at once. But for a few examples, Vasa being one, this option doesn't exist for ships, especially for one the size of New Jersey. It's a dilemma of the first order. Keep the ship intact and have it corrode faster and have prop glands leak water into the ship or ditch the props and preserve most of the ship longer? Curators like Ryan want to keep everything intact, which I agree with, but if that leads to the entire exhibit becoming scrap metal in a few decades then what's the point? None of these ships will be around in 200-400 years. The only hope for that would be for them to be hauled up onto dry land (horror) and kept there, even though that is problematic and with a ship like New Jersey, well nigh impossible. These are important but strangely transient artifacts given their relationship to water, salt or fresh.
@resurgam_b7
2 жыл бұрын
They are not permitted to (nor capable of) "turning on" the ship and rotating the propeller shafts without engine power isn't something that could be realistically done with separate machinery. There isn't exactly a hand crank sticking out of the powerplant that they can use to give the multi-ton shafts, gearboxes and screws a couple of turns every few months. Any moving they need to do will be accomplished by tugs towing them. That would be the case even if the engines could be started, you don't want to be trying to steer a 45,000 ton ship into or out of a mooring space under its own power, that's asking for a very bad day and a very broken dock.
@gnamewname8553
2 жыл бұрын
You have any police cars driving by because it's frickin Camden. Peaceful quiet Camden.
@dundeemink3847
2 жыл бұрын
Should not the weight be carried by bearings rather than the seal?
@davidb6576
2 жыл бұрын
The bearings have clearance, the seals (a sort of rope-like material) are compressed onto the shaft by glands that can be tightened. So it actually is the lower section of the seal (and bearing) that supports the shafts and screws when the shafts aren't turning. If the glands aren't tightened, a gap can form at the top of the seal, allowing leakage.
@fredvelasquez4011
2 жыл бұрын
They have both
@itsmezed
2 жыл бұрын
So the propeller/screw is about 3 curators across then :)
@itsmezed
2 жыл бұрын
I wonder what the size of an international curator would be. 2 Meters, perhaps? 🤔
@Formulabruce
2 жыл бұрын
Installing New "correct" Anodes should be doable as she sits, without a cofferdam?
@harrykilman5634
Жыл бұрын
Not being the expert, I would have them removed at the next dry-docking. The static load of a non spinning screw just makes it harder to tow although not too much at tug speeds still an increased load. Perhaps keep one of the 5 blades so that there is a set to see but perhaps the others could be sold to fund the macro artifact preservation. Perhaps with proper balancing and ELF bearings it might be displayed somewhere in a vertical position that actually could be spun.
@asbestosfibers1325
Жыл бұрын
No thanks.
@Logan-dk8of
2 жыл бұрын
holy shit $18,000,000 to dry dock a battleship. i know its a massive ship but I would not have expected it to be that much
@jodicobb6382
2 жыл бұрын
Come on with it! I done all my chores quickly, just to see this. Now I must wait some more?
@daniel_poore
2 жыл бұрын
If NJ ever takes all the screws off, i hope and wish that they are displayed side by side on muesum property. Imagine that side.... theuy could be mounted upright like the one your standing in front of, and you could probably position them in such a way that guests would need to walk under / thru them to get onto the ship.
@johnm7249
2 жыл бұрын
Submarine museums on the Great Lakes have their propellers removed and stored on the dock due to a treaty with Canada.
@SSN515
2 жыл бұрын
A treaty put in place after the US-Canada Great Lakes Submarine War, no doubt.
@eugenelindsey1523
Жыл бұрын
Why don't you put on a secondary school program called "SOS" - Save Our Ship. You could offer tickets for admission for $1, 5 or what-ever. It promotes the ship, raise money now and increase admission. North Carolina did this in the 60s to raise money for purchasing the ship.
@NKP73
2 жыл бұрын
USS Intrepid had all 4 screws removed because they got stuck in the muck at the bottom of the Hudson River , at least 2 are on display
@kilikus822
2 жыл бұрын
1:17 [Keep Away 150 Feet. No Photography} Cameraman - "No."
@nomimalone7520
2 жыл бұрын
The pentagon has an outrageous annual budget of $725,000,000,000!
@Storyideas81
2 жыл бұрын
Are you allowed to run the engines from time to time? That might help save those seals.
@ghost307
2 жыл бұрын
Nope. The engines are steam powered and the Navy won't let there be steam.
@mrb692
2 жыл бұрын
@@ghost307 I can’t imagine they’d need to turn super fast, pneumatics would probably be enough to get it to turn
@mytmousemalibu
2 жыл бұрын
They are not allowed to operate the ship's propulsion in any way. The seals are going to age no matter what and eventually need repairs.
@tobyw9573
2 жыл бұрын
@@mrb692 Compressed air might work on a reciprocating steam engine, but at the high pressures a steam turbine would take a vast volume of air since the densitry of high pressure steam is very high and in fact can become even denser than water in commercial steam generating plants. A very wise chief power plant engineer explained this to me. en.wikipedia.org/wiki/Supercritical_steam_generator See Supercritical Steam Boiler
@aamiddel8646
2 жыл бұрын
How about an in between idea. Remove 2 props at the next dry docking and put them on display. And by the next dry docking after the Coming dry docking swap the props. You get experience both ways.
@anselmdanker9519
2 жыл бұрын
How long did it take to cast the propeller and what is the type of bronze used and are the same materials used today on the navy's ships.
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