Biggest Ship propeller in the World - 2019
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- เผยแพร่เมื่อ 12 ก.ย. 2024
- #Shippropeller #Propeller #Marinepropeller
This video shows the biggest ship propellers in the world for propelling a mega cargo or cruise ship. A ship propeller is a rotating fan-like structure which is used to propel the ship by using the power generated and transmitted by the main engine of the ship. The transmitted power is converted from rotational motion to generate a thrust which imparts momentum to the water, resulting in a force that acts on the ship and pushes it forward.
Marine propellers are made from corrosion-resistant materials as they are made operational directly in seawater which is a corrosion accelerator. The materials used for making marine propeller are an alloy of aluminium and stainless steel. Other popular materials used are alloys of nickel, aluminium and bronze which are 10~15 % lighter than other materials and have higher strength.
The construction process of shipping propellers includes attaching a number of blades to the hub or boss by welding or forging in one piece. Forged blades are highly reliable and have greater strength but are expensive as compared to welded ones. Big ship propeller is constructed by sections of helicoidal surfaces acting together to rotate through the water with a screw effect.
In This Video, we had shown some of the biggest ship propellers which are used to propel the mega-ships.
** PLEASE READ THE LAST PROPELLER (NO.1) SIZE AS 10.5 M DIAMETER. SORRY FOR THE TYPO.
Thanks for uploading!
Glad you liked it :)
@@marineinsight Hello! Thx for the video ) Do you have any insights into the way these propellers are attached to the axis (shaft) leading to an engine? What method of fastening is used?
Britannic was hospital ship she was sister of titanic and Olympic Britannic have giant propellers but Britannic was sunk 30 people was got killed by propellers blades
@@marineinsight คึง งจะ
,MaN
คั
มีอะ ร
แลัวมีแฟ หรือยยย
Ooooo m g 😂😂😂 good luck bro increase the s 😀👍👍
I still don't understand how something like that can move something like THAT.
You underestimate the power of WATERRRRR and engines( also they aren t going that faste really)
My wife says, size don't matters, efficiency does 😂.
Girth matters
Perhaps your wife is very happy with you.🤗😜
Your wife says something different to me!
@@TheAmazingAdventuresOfMiles e a sua diz pra mim
Engineer: "sir, we have broken incredible ground. We've designed a super propeller, capable of unimaginable efficiency. We've invested unparalleled man hours into this
Boss: by how much?
Engineer: 1.2%
Honestly it sounds weird at first, but when you think about how much 1% is on a very stable business, it's a great improvement.
@@litamtondy over the lifetime of the ship yes, financial advisor to client, "we just figured a way for you to make 1.2% more income over your lifetime" client 😀
I would like to add, the center propeller of the Titanic was smaller than the other 2. (22 tons)
And it worked with recycled steam from the 2 main engines (so it couldn't go in reverse, at least not the day it crashed)
And was made of different metals
Thank you for the comment.
@@marineinsight welcome :)
And by the pictures, the center prop. had 4 blades, while the other two had 3 blades...
Cheers!
@@DalmaTon-Records The pic is from the Olympic :)
@@afoxwithahat7846 Yes, I thought it so, but wasn't sure. But, did they have the same prop. design, or?
Titanic's 4-bladed center propeller was actually significantly smaller than the starboard and port 3-bladed propellers. It had a diameter of about 5.2 m (17 feet). It was powered by an exhaust steam turbine while the other propellers were powered by reciprocating engines.The combined power of the engines was about 46,000 hp.
The center propeller was casted in one piece, the other propellers had their blades bolted on.
Thank you for this insight 👍
Titanic's center propeller was most likely 3 bladed, the rest is correct. The photos of a 4 bladed propeller is from Titanic's sister ship Olympic. No known photo of Titanic's center propeller exist.
www.encyclopedia-titanica.org/mystery-titanic-central-propeller.html
Nice
So about 5 ships have the largest prop in the world.
The image that claims to be Titanic, is in fact the RMS Olympic, Titanic's stern wasn't photographed in dry dock...
You are right....The image are for representative purpose. Text has been authenticated from the original source.👍🏻
Yeah, several of these images are not correct.
@@panon5292 sadly, which other images? My grandfather got it wrong too - he told me that one of the men on the starboard side was my great-grandfather...
You may be interested in this. th-cam.com/video/630jXCphHuo/w-d-xo.html
@@christisking7773 Robert Ballard, who found the Titanic, has claimed the switch-story to be rubbish.
Thank you for not showing any propellers underwater. I could actually watch this video with out my anxiety trying to kill me 😂
There are many who have this phobia.
Yeah freaks me out
Hmmm.... Back in my earliest navy days in the late 70's, my first ship was the USS Constellation, CV-64. It was a Kitty Hawk class with four shafts producing a total of 280,000 SHP. The specs I read back then put the propellers at 32' each. I suppose it would have been towards the top of this list, but since there are no conventional powered carriers left, I guess they don't count. Modern nuclear powered carriers of the Nimitz and Ford class have smaller more efficient props. They're "only" 22'. My last ship was the Eisenhower, CVN-69. They list the top speed of modern nuclear carriers as "30+ knots". The actual top speed is suppose to be classified. We did a high speed run from off of Israel to somewhere around the west coast of Sicily. Took about 18 hours.
Thank your or sharing your life experience with all of us
This scares and fascinates me at the same time
Thanks for sharing
I would have thought that the Iowa class battleships would have at least an honorable mention; 25 ft. inboard props and 24 ft. outboard props
This list was for the commercial ships only. Maybe we can do a video on warships too.
Maybe not the biggest screws but certainly some of the most combined power @ 212,000hp. Truly impressive! And think of the combined surface area of those 4 screws. Wow!
At 1:58, Video overlay text says "It is Six blades" when I can clearly see only 5 blades on the propeller....
@Joe. Yes, the images are for representation purpose only as written in the video description.
Great collection
Thanks for liking.
pretty cool that the Titanic, a ship that is fairly below average in size compared to most cruise ships today, has bigger propellers than the largest cruise ship in the world today
Yes, now more compact size with better efficiency.
Well Titanic is a translantic liner so it needs more speed to cross
Okay thanks again for your time ⌚ and effort into the world 🗺
These huge propellers powered by the huge engines are fascinating.
But I wonder: what thrust do they provide?
It should be much more than a Jumbojet engines... Anyone who knows?
It would be very nice to also know the rpm speed of the propeller at Max power . Cheers .
I wish we knew something about rpm and any necessary gear reduction. Still interesting though.
you can get more article on these topics on www.marineinsight.com/
You won't find any gear reduction in most large ships. Often times the propeller is directly connected to the engine. No gearbox, no clutch.
In #1 you say "each blade measuring 10.5 meters". That would make the diameter (you said diameter in #10) at least 21 meters. So I guess it's a mistake, the total diameter is 10.5 meters. A 21 meter propeller would be the height of a 5 story building.
Interesting video.
Yes Narek. That was a mistake in our part. We had clarified it in the description. Thank you. 👍🏻
@@marineinsight thanks for the response. I should've checked out the description before mentioning it.
@@narekounanian8518 no issues at all. Thank you for watching the video so carefully...
I love propellers
❤️
thanks for video. now i will fit my boat with 6 meter propeler
Have fun
I think we also need to mention that the diameter of a propeller isn't the only factor determined by the power a propeller has to transfer. The pitch of the blades as well as the speed of rotation have effect too.
Me: has submanechaphobia
Also me: hey let's see the biggest underwater propelers
Bravo 👏🏻
Captions were misleading. There's a difference between blade length and diameter. There were pictures taken relative to humans in the background, i think you were talking more of the blade length rather than the diameter.
According to other sources... Emma Maersk's prop is 10m in diameter, and weighs 130 ton.
Very interesting.
Glad you think so!
I have submechanphobia so this was hard to watch 😂
OMG 😅
Even out of the water they are freaky.
@@daddyrabbit835 😅Yes, They are massive.
thanks for naming it.
@@jamesthemongrel 👍🏻
The Titanic propellers are more big than the Oasis class propellers! Haha this is amazing
If we see it technically, Titanic has a conventional propeller with basic steam engine driven crankshaft. However, The oasisi class has state of art pod propulsion system which generates higher power without the need to bigger size propellers, making it more economical. 👍🏻
I think the titanic still would win the competition on the water, I think her engine box would tell that I think, let's say that you would be ahead of her a little bit but she would win in the end with space and time on her.. I think 😎
@@marineinsight right
How small those props are in comparison with the vessels.
Yes, they are small compared to the massive size of the vessel
I always wondered if ships have any protections for whales and dolphins who (i imagine) could get dragged and slain by the propellers, in attempt to chase the ship. Do you guys know?
Not all propeller are covered which may lead to injury. Please read this article - www.marineinsight.com/environment/how-shipping-has-become-a-great-threat-to-whales/
I noticed some of the props are lower that the lowest point of the ships hull.. damaging these props can happen in dry dock or shallow water or hitting a object while underway..
The Navigation crew should be trained and must know the ship's dimension/ characteristics for transiting shallow waters.
why at 2 mins tell us about a 6 bladed prop, then show a picture of a 5 bladed one, which is it 5 or 6?
@Andrew: The photos is only for representation purpose. It is 6 blade prop.
Looking at ship propeller’s make my tummy feel weird
🧐
Submachinphobia
0:09 that propeller is wetting the back of the ship
🧐🙂
😅😅😆
Titanic's name should be switched to the White Star Line Olympic Class Liners. Since there were 3 virtually identical sisters.
Thank you for the info 👍🏻
I honestly thought that even number 10 would be over 10M
:)
Sweet dreams everyone!
How comes cruise freight boats are not fitted with jet engines instead of props?
I have no idea. Maybe propellers are cheaper or maybe jet engines are more expensive to repair. Usually money is the answer. I forgot; maybe propellers are more efficient. Your guess is as good as mine.
Compared to diesel engines jet engines have a very bad fuel economy. They work for high speed planes but on land or water they aren't practical in any way.
Gas turbine engines used on, for example, helicopters have been used for ships too, but they aren't very fuel efficient either. These work like jet engines but the power is taken out from their shafts instead of the jet streams.
The fastest traditionally built car/passenger ferry in the world, GTS Finnjet (1977-2008) had gas turbine engines but diesels were installed later to save fuel.
And if you're talking about water jets, the propulsion systems used on jet skis and rescue vessels - it's mostly for safety and other reasons. It doesn't beat propellers if we talk about fuel ecnomy.
So the 2nd biggest was 34.1 ft. in diameter, but the #1 largest each blade was 34.4 ft., so that would make the diameter at least 68.8 ft., right? No, I think they meant to say the diameter of the whole prop was 34.4 ft. Makes more sense.
em 1:52 o texto afirma seis lâminas, mas na foto consta cinco lâminas.
Photos are for representation purpose only. Text is verified.
how does the weight vary so much (from 50 up to 150 tons)? is one made out of lead or something? even then, based on material densities and since no prop here is 3 times bigger or has 3x more volume than the other, I don't see how the weight varies that much. care to explain the numbers?
Depedns on the type of propeller (construction method) and type of alloy used to built it.
المتور تاع الباطوا واعر يالا جبدك النهاية شتوا بعيني كيفاه سرط واحد
Many (but not all) of the propellers shown here have their tips swept forward (leading) for rotation in the direction for forward thrust. While somebody might have figured out some hydrodynamic advantage for this, it seems to pose a risk that the propeller will snag on a stray cable or cast-off net and draw it onto the propeller shaft (and then wind it up) instead of pushing it aside like a swept-back propeller (like a minority of those shown here) would do.
@Lucius Thank you for your input and insight knowledge on propeller design. The actual footage/ photo of the propellers of particular ship were hard to get, hence we have used images for representation purpose only. 👍🏻
no part of the shaft is exposed. there are rope guards behind the prop that cover the shaft and have cutters attached to cut ropes and nets
@@ronalddavis 👍🏻
@@ronalddavis Good to know, but will these deal with metal cables? Also, what do these look like on a big ship? Google keeps giving me small boat propeller shaft line cutters, but not ones for big ships.
these are actually blades that attach to the backside of the propeller hub and spin with the propeller. the small section of shaft between the back of the propeller and the stern tube is protected by the rope guard which is a two piece clamshell cover.remnants of fishing line, nets etc do wind up on the rope guard .I have never seen cable caught up on a rope guard except small diameter stuff under a half inch. I don't see how a ship would run over and entangle itself in a large cable on the open ocean. I worked in the shipyards for 25 yearsand and occasionally we had to remove propellors and even shafts. it was heavy dangerous work and you had to fight barnacles and deadlines and chainfalls all day.most ship props are 4 blade or 5blade.we also removed rudders which is another pain in the ass.
I believe in naval terms the “propeller” is called a screw.
Nobody asked
@@slitsre was intended to be informative not an answer to a question that nobody asked. Guess you enjoy being a dickhead.
@@ricklewis5804 thanks fyi. And also I read crew called bridge and if ship tilt at an angle they call it list. So odd names
Am I the only one who has Deadly fear of those things?
No...there are many who commented :)
My Submechanophobia, Thalassophobia, and Megalophobia be vibin rn
😳
nice guitar solo
👍🏻
Thank you very much and all the best!
Thank you too!
@@marineinsight
🙏😊
You missed the britannic
The Olympic class sisters might've had the exact same prop size
1:52 it says 6 blades, well I see 5. Is there anything wrong with my eyes?
Nothing wrong Nicholas. The image are for representative purpose only. The script is fact checked.
So each blade is 34 feet or 34 feet from the tip of one blade to the tip of the other?
I'm sorry to seem insensitive, but it seems like submechanophobia is the hot new phobia of the 2020's. Never heard of it before, and now put up a picture of a prop, and everybody's got it. You don't even see that many mentions of arachnophobia on spider videos. The funny thing is, I think I might have submechanophobia. I was raised on the beach, and I go out on boats, but deep water, buoys, foghorns, strong current, and spinning props scare the hell out of me.
I dont know how people are scared of propellers and other man made objects underwater. Like I scuba dive wrecks and sunken objects and I love it alot! Its must just be the creepiness people dont like.
Everyone is scared of that one thing 🙀
Can’t see it
It's Awesome!
Glad you liked it. 👍🏻
@@marineinsight Sure!
who belongs to this soundtrack, i think i am only one who likes that music as instrumental😀
I hate propellers, I have a phobia of them and this video just put me in my coffin 😂😂
That's a submechanphobia.
The one about the Titanic was wrong. The middle prop was bigger than the other two and was powered by a steam turbine.
" It is six blades..." shows 5-bladed propeller 1:53
Hi Rod. The images are for representation purpose only.
@@marineinsight bad representation, you said six but showed one with five
@@Martin-xh1hd We will definitely take care of such things in future. Thank you for commenting
Oh because they had separate engine that why
I'm over here thinking all propeller's powerd by one engine on the titanic
I hope it is clear now.
In future videos, could you please compare it to a human?
AVERAGE HUMAN ADUT HEIGHT - 5 to 6 ft ....rest is easy :)
Alright thanks =)
What about aircraft carriers,? Are their propeller sizes classified?
@Keerthi: This list only include commercial ships
They are smaller, 7-8 meters, but there are 4 of them. The largest propeller are on single shaft ships, I don’t think any navy uses single shaft ships, they need that redundancy/safety with 2 or more shafts
Last one: Diameter 10.5 m with each blade 10.5 m. What? 21 m diameter? Which one is it?
It is the diameter and not the blade length.
My weld can hold 10ton props but 112 tons props I need to try to see if will break the pad with the chain.. they doesnt look so big to me.. 😎
Impressive. 🧐
🤔 I work on propellers for a living. I've worked on 3/10 in this video. Propellers are measured tip to tip overall diameter. Not by a single blade length. That's a world standard so this video had me confused for a minute.
Thanks for the tips!
I've heard that my aircraft carrier that was on had propellers that were 35ft across
Woohaa that’s big
@@marineinsight Yep and there were 4 of them!
The music is hell.
Hi Ben. Thank you so much for your comment. Please do suggest if you have a good taste. We will review and change it. 🧐
1:51 6 blades??? then why show a picture of a 5 blade propeller ???
are military ships props any larger say a aircraft carrier or a submarine
aircraft carriers have four props thus smaller although still big.
Theses ships needs to have high speed hence multiple engines are installed which means more than 1 propeller. Hence, the size is not massive.
That's classified information gotta have a need to know
Did you really mean to say the MSC Oscar propeller had BLADES EACH 34.4 ft long? That gives a swing diameter larger than 70 ft.
Over twice as big as number 2.
1:58 I count only 5 blades, not six? :D
Image for representative purpose only
Today I got all answers.thanks
Glad to know that 👍🏻
No. I've always known they use propellers. And that the larger the vessel the larger the prop. This is common sense.
The scale of the props are cool and all of that But....
What about the man who has to
Sand and polish that huge thing.....
😅
Hey there is me titanic the real one sank in 1912 by an iceberg
The Hamburg Express only has 5 blades but the video said it had 6 blades. I am beginning to wonder if any of this is true.
The images are for representation purpose only as we were not able to get actual pics of propeller due to copyright issues. The Transcript of the video is accurate.
That music spoils this vid, it's absolutly f**king diabolical, what where you thinking?? Had to watch muted!
Thank you for your feedback
You fogot to mention why did Titanic have 2 types of bladed propeller fitted, 2 ventral 3 bladed propellers an 1 central 4 bladed propeller on the famous picture!
I thought Titanic had 3, 3 bladed props and Olympic had the 4 blade middle prop. The pics you generally see of Titanic is usually Olympic.
@derekzan its sounds like a good story. But changes that were made to Titanic from the Olympic are the most obvious pieces that debunk that theory.
What sound track/ music is this?. I'd like to download the track.
👍
very nice!
Thank you! Cheers!
Last one :10.5 m per blade? Diameter of 20 mtrs???
Sorry for the Typo, we have clarified the same in the video description.
How big propeller in aircraft supercarrier ?
Would have been great but... Had to turn it off because of the irritating and irrelevant music. Fail.
Thank you for your comments
Biggest propeller's weight > 112 tons.
How big and how much do the propellars weigh on the USS Gerald R Ford super carrier
It has 4 propellers of 30 tonnes each. Each propeller is about 6m in diameter.
@@marineinsight ok thank u
@@ambrosemackinnon8314 👍👍
@@marineinsight awsome
And the Oscar goes to the Oscar
🏆
Ngujima-Yin (FPSO) has 10m propeller...
Emma Maersk is not a Triple E Class vessel.
I went to the OBX and outside a store they had a propeller, I took a picture with it and thought it was one of the biggest.. it’s like half the size of the first on this list LMAO🤦♂️
😅Down the line with time, we will get bigger propeller than listed in the video
Thanks for the video, I'm a boat freak. Btw Titanic's pool is still full. I know that was horrible, God help me.
👍🏻
Ride Red The sinking of the Titanic was a miracle to the lobsters in the kitchen.
@@RepJock88 🧐
Zeark will be terribly getting scared af with this
Poor Zeark!
1:55 5 blades no 6
Interesting how the biggest ships have only one propeller.
👍
You got so many facts wrong.
please do let's know.
And what about those engines driving these props
th-cam.com/video/i1Abti0zBMM/w-d-xo.html
I guess a 10mm wrench is not enough to remove one of those propellers.
So number 8 has 6 blades.....but only 5 shown.
and what if a person comes in there? what happens then
It will be risky situation.
The biggest is probably a single propeller
1:14 Nine of these propellers were actually made, let's not forget the Titanic's sister ships, Olympic and Brittanic!