Unlike ships, which will, hopefully, always be able to stop when needed, I sincerely appreciate our friend, Mike Brady, from Oceanliner Designs, and his non-stop effort to bring great content to us.
A couple of small points: 1) Not only is the weight of the ship moving, you also have a lot of water that is in motion. This makes it even harder to stop quickly. 2) On ore carriers on the great lakes the amount of engine per ton is a lot less and as a result, full astern doesn't do much.
No matter what aspects about ships you put out on this channel, even me who has barely been on any ships, will always watch it because you make it interesting. Thank you Mike! I always think hopefully this’ll come in handy for trivia someday 😂
I remember an old 90s tv show where Jeremy Clarkson was on the Jahre Viking ( at the time the biggest man made moving object ever, not sure if it still has that record) and the Captain said it takes her 5/5.5 miles to stop from full speed
In open seas, if the engine is stopped at full speed, the propeller is still driven ahead by the water flow and so is the engine because it is a direct drive. It is impossible to start the engine astern unless the speed is sufficiently reduced. This is done by injecting compressed air in the cylinders. But the reserves of compressed air are very limited and it is not certain that enough air is left to start the engine astern. This manoeuvre is tested during sea trials but at this time, the ship is empty which makes a big difference compared to normal use of the ship !! In my opinion as former Captain, the most efficient way to stop a ship in open seas is to do sharp turns (for example, performing the "Williamson Turn") but remember it's not the bow that moves, it's the stern !!! Anyway, thank you so much, Mike, for this comprehensive video !
Not sure about wanna taking over want to . There seems to be this thing where people think it's cool not to pronounce Ts I'm not sure what this is about lol
Thank you Mike for another very interesting video. In 1961 my parents did a cruise from Wellington to New York on the JVO. I remember my father talking about how long it took to stop when a man jumped overboard to swim to a nearby island. I think that he said it was over one mile. They picked up the bloke and threw him in the brig as he had also set fire to his cabin, he thought that the island was quite close, it was over three miles away! All the best from Sydney.
anything can be a unit of measurement, i in fact measure the weight of modern vehicles in number of 'lizzo's' , for example a cadillac seville is 3 lizzo's, a Harley Fatboy is 1.75 Lizzo's
The ship used for USS Indiana appears to be the Indianapolis or one of her sisters, they of course being WW2 cruisers whereas the USS Indiana was a battleship laid down in 1891 and looked vastly different. Theodore Roosevelt passed away before the Indianapolis was laid down
I was born, raised and live in Indiana. The USS Indiana is my favorite battleship, and the SoDak class is my favorite all around class. They look like brawlers, and were.
@@kurtkuczynskiMassachusetts on Jean Bart, South Dakota getting the bad end of a three way engagement between herself, Washington, and Kirishima - and then Indiana and Washington having a major oopsie - yeah, the SoDaks were absolute units. Glad that we still have two of them.
Several commenters have already mentioned Variable Pitch Propellers and Auxiliary Propulsion Units. In the US Navy, PERRY, SPRUANCE, TICONDEROGA and BURKE class ships as well as others have variable pitch propellers powered by gas turbine engines (GTE), GTE's turn the propeller shafts in the same rotation all the time. It is the propeller blade, which can rotate on the hub, that determines forward or rear movement. From full power, SPRUANCE class ships could stop within their own hull length (563') and then move in reverse without stopping the rotation of the shaft. Certainly the torque on the shafts (in particular the over 400' long port shaft) was tremendous. But this was designed into the structure of the shaft and shaft bearings. PERRY class frigates, with only one shaft, also were equipped with an APU near the bow. It could move the ship at about 5 knots itself and was fully 360 degree maneuverable when deployed. R. Rose, PNC(SW), USN(Ret)
As the news from Baltimore are trickling in😢, I've sent this video to several people already, so that they have some general background information on how to stop a ship - before the wild online speculations start
We learned that hitting something does technically count as "stopping". _EDIT: Context for future viewers - a ship lost power and couldn't stop before hitting a bridge in Baltimore just three weeks after the video was posted._
The ship in the video thumbnail picture looks amazing. You do well, Mr. Brady. I always enjoy watching and learning from your videos. You do well. Man, Titanic was a true super performance ship. It is amazing and forever will be for a ship to stop from 21 knots in less than 1 km, despite being almost 900 ft long.
Wait, they really do this? You're telling me they DON'T put everyone's hand and feet in the water? I realize some boats are really tall. This is what portholes are for.
Another great video! It's so important for smaller craft to always give way. Unfortunately, every summer we here on Lake Erie see small boats playing "chicken" with lake freighters and "salties." Dangerous business!
Dear Mike, I truly appreciate your channel as well as the enormous work underlying. On this topic, however, there are some considerations. Basically there are three propulsion systems in the merchant marine: 1) Slow running two-stroke Diesel engines, vaiable RPM, acting directly on the vessel`s prpopeller shaft. That means, if you want to use the propeller to support stopping you'd have to crash-stop the engine (already bad) and restart it turning in reverse (worse). No good option, because it strains the whole powerplant to the the utmost 2) Medium speed four stroke Diesels. They usually run at constant RPM irrespective of engine load, acting on the propeller shaft by reduction gear and on a variable pitch propeller. For reversing, only the propeller pitch will be altered. Strain is there, but it won't kill the engine plant 3) As with most modern cruise ships, there is Diesel electric propulsion. I.e. Diesels are just providing electricity and propulsion motors consume whatever power they need, there is no mechanical connection between powerplant and prpulsion unit. Usually these propulsion motors are housed in the gondolas of azimuth drives (Azipod). Breaking there is best achieved by turning Azipods outward and going to full thrust against each other - the breaking moment is induced by the paddle wheel effect. Happy to chat if you`d like. Best regards from Hamburg, Germany, Meyerchen
@01:02 There is a documentary where aliens invade the earth and it's up to the US Navy to defend the world; I suggest the viewers watch it to see how ships can turn and stop very quickly
I feel like I need your accent to retain the information, especially on the first go around. You could be the world’s finest professor. The delivery of information, the connections, I just cannot get enough of OLD ❤
Regarding what you said about smaller boats staying out of the big shipping lanes reminds my husband of someone he knew who worked in the Merchant Navy. He had the most chilled out captain who everyone on the crew respected and got on with. Here are a few examples of what experiences he spoke of. There they were sailing along in a big bulk carrier and a small sailing boat is on an intercept course. A call comes over the radio to the captain on the bridge, and the gentleman on the small boat is demanding they heave to and make way! The captain looks at the bridge crew, looks and the boat says, 'No can do'. The gentleman then says, 'You have to stop your ship, Sail before steam.' Again the captain says, 'No can do' He is much, much bigger. The gentleman again demands that they stop and let him past, with the phrase, 'sail before steam', repeated. By this point the captain is bored, plus he cannot stop due to the immense size, and he is in his legitimate shipping lane. The old boy demands, 'Stop, sail before steam,' and the captain says,' Do what you want mate, I'm burning diesel',🤣 and carries on. Another example, is that they are out in the middle of the ocean on an oil tanker and over the radio comes a call from US jets, that they are going to do a low level buzz over the ship. No asking, just telling. The chilled out captain just replies, 'OK, not a problem, but be aware we are venting propane'. (This has to be done as it comes out of oil naturally and has to be released because it will explode if you don't). 💥💥 The jets became visible on the horizon, got visibly bigger as they screamed towards them, then both of them pretty much stood upright on their jets and shot off sideways at 90 degrees at high speed. Brilliant bit of piloting👍👍. They certainly got to test their flying skills that day. His mate said to the captain, 'Are we venting propane today?'. The response, was, 'No, but fuck 'em. Arrogant yanks'. 👎👎🤬 He didn't appreciate them 'telling him' they were going to buzz over as opposed to asking if it was OK. Another story not relating to stopping, but returning to the ship at Panama. They have their own dock police, so they have to go through security/customs. They are all stood in line with their documents and there is a complete dragon on the counter checking the papers. The captain goes in front of my husband's mate and the dragon says, 'Any criminal history?' The captain simply gives her a lopsided smile and says, 'I'm sorry, I never realised you still needed a criminal record to be a ship's captain.' The dragon instantly blushed and giggled like a schoolgirl and let him through. His mate then stepped up to the desk, and she instantly reverted into full dragon mode.🐲🐲 This last one is not so much to do with encountering other ships or planes. But the captain did a favour for someone in Panama and was asked what he would like as payment. He thought for a moment and asked for a full size snooker table. Sure enough, he got a snooker table. It was set up in the restroom and became quite the focal point. It was set up on mahogany beams that were stored on the ship. When the sea was nice and calm, he would have a game and would call down to engineering to adjust the ballast, so the table was level. News of this table started to spread, and when the top brass visited and everyone was on parade in full dress uniform, the brass would approach, introduce themselves, and then they would quietly ask,' Is it true what we hear..... that you have a snooker table on board?' He would say, 'Yes sir.' 😊😊 The brass would smile and say, 'May we see it, please?' He would of course oblige, then they would all have a game of snooker. It was the best icebreaker ever, and they could talk about all manner of things while having an enjoyable game. 😁😁 To my husband's knowledge all of these are true incidents as his mate was no one to tell tall stories. He said, that he felt it had been a privilege to sail with this captain, as he had been a pleasure to serve with and made other people's jobs that much easier. Very switched on but very fair. Makes you wonder what does go on with the various ships around the world and their crews!!🤔🤔
130 Fletchers or 5 Titanics...sounds like Mike Brady in Australia is well acquainted with the American way of avoiding any and all metric measurements by saying how many this or that or using "freedom units" as some call them.
I just found this channel from his main video on the collapse, and immediately checked his back catalog. When I saw this video, I had to watch it immediately.
"has jokes recommending this to me now!" The way you word that doesn't really make sense. Are you saying that RUclips is recommending this to you and you think it's a joke? ☕😁
Awesome explanation of braking! I love how well that puts the Ever Given's insane size in perspective too to compare it to multiple Titanics. And yes - very wise small-vessel advice. As an avid kayaker, that's a very base rule; do NOT get in the way of larger vessels. We call it the "might has right" rule.
Throwing one of those ships into reverse at full speed and full power must put monsterous forces into the thrust blocks and whatever they're attached to. Good info.
Your intro theme score synced perfectly with the note frequency of the foghorn sound over your "Oceanliner Designs" logo. Just listen to that perfect matchup from 1:18 until logo. Magic 🎼🎵
@@grayrabbit2211it's worth watching Alaska Bush pilots doing their short takeoff and landing competitions. There's some that can take off and land in less than one plane length. Really crazy to see.
Ships don't have brake pedals, but they do have a system that tells the engine room crew to slow down. They enact the brake system which consists of large flaps of steel that fold out from the hull, bringing the ship to a stop. I used to do that when I was in the US navy.
My father was a Master at sea and then became a harbour pilot in Auckland NZ, he was always on about the sail boats that would cut under the bow of ships coming into port as some ships could take up to 5 miles to come to a full stop. Ocean liners have good power and multiple props but some cargo ships are very under powered for their size, fine at sea but slow to react. As a teen I have been out on the pilot boats .
Depending on the rudder design, you also have the option of 'Closing the barn doors'....turning the rudder(s) completely sideways and effectively dragging a wall through the water.
Since ships float on water like hot-air balloons float on air, it's likely impossible to stop being buffeted about by the waves and currents without poking a hole in the hull and coming to rest on the ocean floor. Submarines, on the other hand, are essentially airplanes of the liquid sky, and thus one would naturally assume that they stop by lowering their landing gear and engaging their thrust reversers.
I served aboard the US carrier, USS Nimitz back in the 90s and when we were fully loaded out with bombs, beans and bullets as they say, it would could take as much as two miles to bring the 110,000 ton ship to a full emergency stop from max speed (appx: 33 knts)!
Stay out of Shipping Lanes. reminds me of the collision between the steamer Bangor Packet and a small fishing/excursion vessle called the Bluebird near Kennebunkport, Maine.
Agree Murdoch gave command to STOP engines not REVERSE. Passengers reported no shaking or vibration which would have occurred if screws were reversed at 21knots. Titanic coasted into the iceberg.
you think after all the trauma of being freezing cold and put into lifeboats, and having your trip runied, they would remember a bit of vibration? Not likely.
@@Astronist So would an all-stop. When cruising, and especially as lower spees, the local velocity of water imparted by the props substantially higher than the hull velocity. Therefore ordering all engines stop considerably reduces rudder effectiveness. Assuming the officer wanted to port around the berg, it would have been better to keep the engines at ahead, and not stop or reverse.
I like your last warning. I was on a Disney cruise ship heading out of San Diego harbor and there was a tiny boat right in the channel - Disney blasted their horns so loud, like we're not stopping, you better get out of the way!
Solid vid! Kind of alluded to but worth noting directly that during a crash stop, with the screws in full reverse, the rudder basically loses all effect.
Bigger vehicle has right of way. A large ship might not even see a small boat. And might not even know it hit it. Imagine a giant ship like the titanic plowing into a bass boat. It would be like hitting a cat with a semi truck.
@@gregrowe1168That's no contradiction. The smaller vessels are normally the more agile which have to give way. Only exception is when sails are involved, as ships with no engine are considered less agile. But in this case ... if you put up a sail boat, even a large one, against a container freighter, the sail boat ends up to be more agile.
Interestingly, that isn't true in road traffic; with road user substituted for vessel, of course. Not at least from legislative perspective. Maybe that's because vehicles can usually stop unlike vessels. Apropos, my reply to the title question: they are drydocked. All watercraft, except bottomed submarines, have to be drydocked to make them stand still.
One reason really big ships start slowing down 50 miles back, is that there's often only enough water depth for the ship to enter its destination port at high tide - and however carefully the Captain may plan his passage to arrive at high tide, anything can change the ship's speed; like headwinds or waves on the bow that may only slow the ship by a fraction of a knot, but over a four-day passage, that adds up. There are two additional, grisly factors waiting in the wings at that point: when Torrey Canyon went aground on the Seven Stones, the Captain was down below, moving oil about in the ship. They were drawing 60' forward and 62' aft, and there'd only be ~61-and-a-half feet in the channel at high tide in Rotterdam the next morning. Coupled with the complication that tankers are a conglomeration of separate tanks which may be transporting several different grades of crude oil, and they CAN NOT mix the different grades, this job was not necessarily quick or easy. The second factor is that these big ships are almost unmaneuverable in shallow water, as the rudder is not nearly as effective with only a few feet of depth beneath it. Not a fun job... And of course, it must be mentioned that in many ports there are cables, pipelines and even tunnels running along the bottom of harbours - and a ship dragging its anchors in an emergency stop can do hugely expensive damage to a port's infrastructure. The pilot should know about things like this, which isn't a lot of good if the ship doesn't follow the pilot's instructions... But that's a really good warning you gave: " - Small boats, STAY OUT OF THE WAY!"
The Iowa-class, and presumable other dual rudder vessels, also had an emergency stop procedure they called closing the bar doors. Where you'd put over the rudders in opposite directions to increase drag.
Thanks for the info mike! i love the new style of videos you make. you've really advanced in video making since i first learned about you! keep up the good work!!
I was blessed with the chance to take my speedboat and kids to Thousand Islands area of New York. It was my first time around such huge ships on my little 20 footer. Never felt so small. But very neat to see.
You have a wide knowledge and you turn attention to small details as well which is great. Do you cover modern ships as well? Like luxury cruise ships, modern yachts, aircraft carriers... If yes, please do some detailed videos.
I always wondered how these gigantic things could stop that well and go that fast. Like its a simple question at first like just reverse the propellers but its a lot more complex than i ever thought
Its actually surprisingly simple to work out in instances like this with low to no friction, like space ships, its newtonian physics, the force and stopping time required to decellerate the vehicle from to its maximum speed is directly proportional to the inverse, ie from going from a standstill TO top speed, since the ship applies full thrust in the opposite direction, theoretically, the stopping distance/time must be inversely proportional to the rate of acceleration from a stand still to top speed, so if you know how fast it does from 0 to 20, you know how fast it also goes from 20 to 0, since the equation is the same, just with some values inverted
8:20 Most modern ships have azimuth thrusters to provide control at low speeds. As a result, they do not require headway and water over the rudder for controllability.
Paddle steamers can stop really quickly. It's their very nature. The floats act exactly like the ship brake, only one that works really well. By chance I was looking at the Talisman's bell today. She was an LNER paddle steamer of 1935 that had an electric motor (GEC?) with a paddle wheel on each end; direct drive, no gearing. The Talisman was especially good at stopping. She could stop in about 2 lengths. I think she was 230 feet long. The strain on the motor must have been immense but it worked perfectly. The strain on the generator sets was another matter. The wheels were rimless with 8 steel, later wooden floats. The steel ones caused the wheels to fracture but the wooden ones had more give and were far less harsh. I believe they were Canadian Rock Elm. The Waverley uses Opepe now. Full details are in Talisman, the Solitary Crusader, by Alan Brown, but I don't have the book to hand just now so I'm going from memory.
We were becalmed in the mouth of the Brisbane in our sailing boat. My wife pointed to the charter boat and said watch out, it’s coming near us. I said that’s not the one I’m worried about as she turned to see the cargo ship bearing down on us. Finally got our motor going just in time to get out of the way. That ship certainly wasn’t stopping in a hurry .
![[DRAGON BALL LEGENDS REVEALS ＆ STUFF] LEGENDS FESTIVAL 2024 Special Edition Part 2](http://i.ytimg.com/vi/af0phKxitX8/mqdefault.jpg)
Unlike ships, which will, hopefully, always be able to stop when needed, I sincerely appreciate our friend, Mike Brady, from Oceanliner Designs, and his non-stop effort to bring great content to us.
He's not my friend. I never even met him. He's not even a acquaintance. It irritates me that he says it.
hear hear
to the original comment
@@tarstarkusz brother, we all are your friends whether you like it or not. Accept the love or get crushed by it
@tarstarkusz "grrrr stop being nice!! 😡😡"
Awwww want a hug widdle baby?😢@@tarstarkusz
Like how you throw (physically) 5 Titanics on the screen, it really gets me.
what
It's a real sinking feeling.
...I'll see myself out.
He has REALLY STRONG arms! 😮
@@TheEDFLegacy 🤣
Lol
BABY WAKE UP OCEANLINER DESIGNS JUST POSTED!!!!!! (also love the content)
“This is how ships stop at sea”
-My friend Mike Brady from Oceanliner Designs
Mike Brady is such a superstar name.
you are mistaken. He is in fact MY friend Mike Brady from Oceanliner Designs, he told me so at the beginning of every video
I think you will find, Mike is my personal friend. When it comes to maritime matters.
I'll bet the Ever given has one whoppa of a propeller
Yes he did say that didn't he?
Hmmmm ....that's funny because I might need to hit my friends up for a small cash loan!
A couple of small points:
1) Not only is the weight of the ship moving, you also have a lot of water that is in motion. This makes it even harder to stop quickly.
2) On ore carriers on the great lakes the amount of engine per ton is a lot less and as a result, full astern doesn't do much.
the timing on this!
Today, of all days, this video get recommended to me. The day the ship knocked down a bridge in Baltimore
Timing
Very convenient this gets recommended to me following recent events in Baltimore 🤔
No matter what aspects about ships you put out on this channel, even me who has barely been on any ships, will always watch it because you make it interesting. Thank you Mike! I always think hopefully this’ll come in handy for trivia someday 😂
Same, I've worked on ships only because I was in the French Navy, but as a helicopter pilot ^^. But damn, his channel is gold. =)
@@fridaycaliforniaa236dude that’s awesome, good for you
Hi Mike,as a retired marine engineer with 32 years in tugs I find you channel very informative and entertaining.Cheers,Roly🇬🇧.
Those big ships and the engineering are just amazing.
I remember an old 90s tv show where Jeremy Clarkson was on the Jahre Viking ( at the time the biggest man made moving object ever, not sure if it still has that record) and the Captain said it takes her 5/5.5 miles to stop from full speed
It does still hold that record, or at least the record of the longest self-propelled vessel. It was scrapped back in 2010 though.
It's on RUclips. Just type in jahre Viking
A good segment by Clarkson, That man can make anything interesting
@@jspaceemperor420 The only thing that would have made that show better is if we got to see the ship in drydock.
In open seas, if the engine is stopped at full speed, the propeller is still driven ahead by the water flow and so is the engine because it is a direct drive. It is impossible to start the engine astern unless the speed is sufficiently reduced. This is done by injecting compressed air in the cylinders. But the reserves of compressed air are very limited and it is not certain that enough air is left to start the engine astern. This manoeuvre is tested during sea trials but at this time, the ship is empty which makes a big difference compared to normal use of the ship !! In my opinion as former Captain, the most efficient way to stop a ship in open seas is to do sharp turns (for example, performing the "Williamson Turn") but remember it's not the bow that moves, it's the stern !!! Anyway, thank you so much, Mike, for this comprehensive video !
just wanna say the new intro music works REALLY well with the iconic foghorn! although... is it just me or has the foghorn gotten a little muted?
Yeah it sounds a little quieter. Was the horn taken from any real ship? I am genuinely curious. It does sound like an ocean liner horn.
Not sure about wanna taking over want to . There seems to be this thing where people think it's cool not to pronounce Ts I'm not sure what this is about lol
Thank you Mike for another very interesting video. In 1961 my parents did a cruise from Wellington to New York on the JVO. I remember my father talking about how long it took to stop when a man jumped overboard to swim to a nearby island. I think that he said it was over one mile. They picked up the bloke and threw him in the brig as he had also set fire to his cabin, he thought that the island was quite close, it was over three miles away! All the best from Sydney.
London busses are a unit of measurement
anything can be a unit of measurement, i in fact measure the weight of modern vehicles in number of 'lizzo's' , for example a cadillac seville is 3 lizzo's, a Harley Fatboy is 1.75 Lizzo's
so are football fields, but that doesn't differentiate between the NFL, the CFL or the Premier League. It depends on what county you are in.
@MunkyGameDesign So that means that a Lizzo is about 250 pounds? But wait, a Cadillac Seville would be more than 3 Lizzos. More like a dozen.
Yall will use anything else except the imperial system for measuring XD (couldn't resist)
@@TheGoddamnBacon But are you talking about length? Distance? Weight? Volume?
The ship used for USS Indiana appears to be the Indianapolis or one of her sisters, they of course being WW2 cruisers whereas the USS Indiana was a battleship laid down in 1891 and looked vastly different. Theodore Roosevelt passed away before the Indianapolis was laid down
Correcdft, USS Indiana BB1 was a pre-dreadnaught.
There was also a USS Indiana - BB58, a South Dakota class fast battleship.
I was born, raised and live in Indiana. The USS Indiana is my favorite battleship, and the SoDak class is my favorite all around class. They look like brawlers, and were.
@@kurtkuczynskiMassachusetts on Jean Bart, South Dakota getting the bad end of a three way engagement between herself, Washington, and Kirishima - and then Indiana and Washington having a major oopsie - yeah, the SoDaks were absolute units. Glad that we still have two of them.
Several commenters have already mentioned Variable Pitch Propellers and Auxiliary Propulsion Units. In the US Navy, PERRY, SPRUANCE, TICONDEROGA and BURKE class ships as well as others have variable pitch propellers powered by gas turbine engines (GTE), GTE's turn the propeller shafts in the same rotation all the time. It is the propeller blade, which can rotate on the hub, that determines forward or rear movement. From full power, SPRUANCE class ships could stop within their own hull length (563') and then move in reverse without stopping the rotation of the shaft. Certainly the torque on the shafts (in particular the over 400' long port shaft) was tremendous. But this was designed into the structure of the shaft and shaft bearings. PERRY class frigates, with only one shaft, also were equipped with an APU near the bow. It could move the ship at about 5 knots itself and was fully 360 degree maneuverable when deployed.
R. Rose, PNC(SW), USN(Ret)
The new intro's amazing, mike. Like it a lot
As the news from Baltimore are trickling in😢, I've sent this video to several people already, so that they have some general background information on how to stop a ship - before the wild online speculations start
We learned that hitting something does technically count as "stopping".
_EDIT: Context for future viewers - a ship lost power and couldn't stop before hitting a bridge in Baltimore just three weeks after the video was posted._
Interesting content, which is, crucially, very well presented. Congratulations on an excellent channel.
Cheers
The ship in the video thumbnail picture looks amazing. You do well, Mr. Brady. I always enjoy watching and learning from your videos. You do well.
Man, Titanic was a true super performance ship. It is amazing and forever will be for a ship to stop from 21 knots in less than 1 km, despite being almost 900 ft long.
Wait, they really do this? You're telling me they DON'T put everyone's hand and feet in the water? I realize some boats are really tall. This is what portholes are for.
"How Do Ships Stop?"
"They hit a big rock in the *insert body of water here*"
I guess an iceberg is a giant ice rock so the math checks out thus far
Does a bridge also count as a rock? Asking for a friend...
Love the new intro, the Ship horn fits the melody so much better than it did before - great work Michael!
Another great video! It's so important for smaller craft to always give way. Unfortunately, every summer we here on Lake Erie see small boats playing "chicken" with lake freighters and "salties." Dangerous business!
Dear Mike,
I truly appreciate your channel as well as the enormous work underlying.
On this topic, however, there are some considerations. Basically there are three propulsion systems in the merchant marine:
1) Slow running two-stroke Diesel engines, vaiable RPM, acting directly on the vessel`s prpopeller shaft. That means, if you want to use the propeller to support stopping you'd have to crash-stop the engine (already bad) and restart it turning in reverse (worse). No good option, because it strains the whole powerplant to the the utmost
2) Medium speed four stroke Diesels. They usually run at constant RPM irrespective of engine load, acting on the propeller shaft by reduction gear and on a variable pitch propeller. For reversing, only the propeller pitch will be altered. Strain is there, but it won't kill the engine plant
3) As with most modern cruise ships, there is Diesel electric propulsion. I.e. Diesels are just providing electricity and propulsion motors consume whatever power they need, there is no mechanical connection between powerplant and prpulsion unit. Usually these propulsion motors are housed in the gondolas of azimuth drives (Azipod). Breaking there is best achieved by turning Azipods outward and going to full thrust against each other - the breaking moment is induced by the paddle wheel effect.
Happy to chat if you`d like.
Best regards from Hamburg, Germany,
Meyerchen
@01:02 There is a documentary where aliens invade the earth and it's up to the US Navy to defend the world; I suggest the viewers watch it to see how ships can turn and stop very quickly
lol funny
i never realized the complexities of ships, until i started watching your channel
Our friend, Mike Brady from Ocean liner Designs!!! ❤❤❤😊
This is absolutely fascinating, and something I had never considered before. Thank you for sharing, Mr. Brady.
I feel like I need your accent to retain the information, especially on the first go around. You could be the world’s finest professor. The delivery of information, the connections, I just cannot get enough of OLD ❤
Subtle thing, but I like the new intro. The section plans forming into the 3D model, very thematic. Elegant.
I have only been on any vessel twice in my life and yet I am hooked like hell.
Regarding what you said about smaller boats staying out of the big shipping lanes reminds my husband of someone he knew who worked in the Merchant Navy. He had the most chilled out captain who everyone on the crew respected and got on with.
Here are a few examples of what experiences he spoke of.
There they were sailing along in a big bulk carrier and a small sailing boat is on an intercept course. A call comes over the radio to the captain on the bridge, and the gentleman on the small boat is demanding they heave to and make way!
The captain looks at the bridge crew, looks and the boat says, 'No can do'.
The gentleman then says, 'You have to stop your ship, Sail before steam.'
Again the captain says, 'No can do' He is much, much bigger.
The gentleman again demands that they stop and let him past, with the phrase, 'sail before steam', repeated.
By this point the captain is bored, plus he cannot stop due to the immense size, and he is in his legitimate shipping lane.
The old boy demands, 'Stop, sail before steam,'
and the captain says,' Do what you want mate, I'm burning diesel',🤣 and carries on.
Another example, is that they are out in the middle of the ocean on an oil tanker and over the radio comes a call from US jets, that they are going to do a low level buzz over the ship. No asking, just telling.
The chilled out captain just replies, 'OK, not a problem, but be aware we are venting propane'. (This has to be done as it comes out of oil naturally and has to be released because it will explode if you don't). 💥💥
The jets became visible on the horizon, got visibly bigger as they screamed towards them, then both of them pretty much stood upright on their jets and shot off sideways at 90 degrees at high speed. Brilliant bit of piloting👍👍. They certainly got to test their flying skills that day.
His mate said to the captain, 'Are we venting propane today?'.
The response, was, 'No, but fuck 'em. Arrogant yanks'. 👎👎🤬 He didn't appreciate them 'telling him' they were going to buzz over as opposed to asking if it was OK.
Another story not relating to stopping, but returning to the ship at Panama. They have their own dock police, so they have to go through security/customs. They are all stood in line with their documents and there is a complete dragon on the counter checking the papers.
The captain goes in front of my husband's mate and the dragon says, 'Any criminal history?'
The captain simply gives her a lopsided smile and says, 'I'm sorry, I never realised you still needed a criminal record to be a ship's captain.'
The dragon instantly blushed and giggled like a schoolgirl and let him through.
His mate then stepped up to the desk, and she instantly reverted into full dragon mode.🐲🐲
This last one is not so much to do with encountering other ships or planes. But the captain did a favour for someone in Panama and was asked what he would like as payment. He thought for a moment and asked for a full size snooker table. Sure enough, he got a snooker table. It was set up in the restroom and became quite the focal point. It was set up on mahogany beams that were stored on the ship. When the sea was nice and calm, he would have a game and would call down to engineering to adjust the ballast, so the table was level.
News of this table started to spread, and when the top brass visited and everyone was on parade in full dress uniform, the brass would approach, introduce themselves, and then they would quietly ask,' Is it true what we hear..... that you have a snooker table on board?'
He would say, 'Yes sir.' 😊😊
The brass would smile and say, 'May we see it, please?'
He would of course oblige, then they would all have a game of snooker. It was the best icebreaker ever, and they could talk about all manner of things while having an enjoyable game. 😁😁
To my husband's knowledge all of these are true incidents as his mate was no one to tell tall stories. He said, that he felt it had been a privilege to sail with this captain, as he had been a pleasure to serve with and made other people's jobs that much easier. Very switched on but very fair. Makes you wonder what does go on with the various ships around the world and their crews!!🤔🤔
This new intro is brilliant. Another masterpiece from you guys!
130 fletchers. yeah but what's that in metric? 5 titanics.
130 Fletchers or 5 Titanics...sounds like Mike Brady in Australia is well acquainted with the American way of avoiding any and all metric measurements by saying how many this or that or using "freedom units" as some call them.
Ironically, Britain is one of the countries who use non-metric measurements today
@@nthgth because us English nations want to avoid the heathen system.
youtube has jokes recommending this to me now!
I just found this channel from his main video on the collapse, and immediately checked his back catalog. When I saw this video, I had to watch it immediately.
This is not 🚫 a joke 🤣
"has jokes recommending this to me now!" The way you word that doesn't really make sense. Are you saying that RUclips is recommending this to you and you think it's a joke? ☕😁
@@joshhutchison6201 I mean RUclips has a cruel sense of humour
Awesome explanation of braking! I love how well that puts the Ever Given's insane size in perspective too to compare it to multiple Titanics. And yes - very wise small-vessel advice. As an avid kayaker, that's a very base rule; do NOT get in the way of larger vessels. We call it the "might has right" rule.
its no different than an RR crossing for cars, the train is bigger so stay off the tracks because train always wins.
@@filanfyretracker - Exactly!
voice: titanic could stop in 780 meters.
me: that's a long way...
voice: three ship lengths
me: ah... yeah that's actually very impressive.
Throwing one of those ships into reverse at full speed and full power must put monsterous forces into the thrust blocks and whatever they're attached to. Good info.
Your intro theme score synced perfectly with the note frequency of the foghorn sound over your "Oceanliner Designs" logo.
Just listen to that perfect matchup from 1:18 until logo. Magic 🎼🎵
full stop in 3 ship's lengths ?!
impressive.
I guessed more than a mile.
It really is. Try doing the same with a car or airplane; it isn't going to happen.
@@grayrabbit2211it's worth watching Alaska Bush pilots doing their short takeoff and landing competitions. There's some that can take off and land in less than one plane length. Really crazy to see.
I really enjoy your information on ships and shipwrecks I've always have been fascinated with them
Excellent video, Mike! Also, I noticed new opening titles and visuals - excellent work there, too.
New intro!!!! Looks really good nice one mate.
Ships don't have brake pedals, but they do have a system that tells the engine room crew to slow down. They enact the brake system which consists of large flaps of steel that fold out from the hull, bringing the ship to a stop. I used to do that when I was in the US navy.
My father was a Master at sea and then became a harbour pilot in Auckland NZ, he was always on about the sail boats that would cut under the bow of ships coming into port as some ships could take up to 5 miles to come to a full stop. Ocean liners have good power and multiple props but some cargo ships are very under powered for their size, fine at sea but slow to react. As a teen I have been out on the pilot boats .
Amazing how large and fast ships are now! Thanks for the helpful comparison descriptions of the Ever Given's specs.
Thanks!
Depending on the rudder design, you also have the option of 'Closing the barn doors'....turning the rudder(s) completely sideways and effectively dragging a wall through the water.
Absolutely love your content man! easily one of the most underrated channels on RUclips. keep up the great work as always
My man i love your videos mike
That is a good point about staying out of shipping lanes with small boats. I've had first-hand experience.
odd this shows up recommended this morning.
Really good and informative video btw. 👌🏽
That intro. was fire man!!
Great video Mike. Hope to see more! (Also nice new intro)
Since ships float on water like hot-air balloons float on air, it's likely impossible to stop being buffeted about by the waves and currents without poking a hole in the hull and coming to rest on the ocean floor. Submarines, on the other hand, are essentially airplanes of the liquid sky, and thus one would naturally assume that they stop by lowering their landing gear and engaging their thrust reversers.
Love your humor and seeing you means I learn sth. today.^^
Great information! Thank you for the video!
I served aboard the US carrier, USS Nimitz back in the 90s and when we were fully loaded out with bombs, beans and bullets as they say, it would could take as much as two miles to bring the 110,000 ton ship to a full emergency stop from max speed (appx: 33 knts)!
a quick wiki shows the carrier has 194Mw of power.
I love the new intro Mike.
Well put together and interesting video, thanks!
Much respect Mr Brady
I remember hearing about the patented ship brakes, and finding them really cool and interesting!
I appreciate them and wish they were more common.
this is a suspiciously relevant video
Nicely done, including the new intro!
Stay out of Shipping Lanes. reminds me of the collision between the steamer Bangor Packet and a small fishing/excursion vessle called the Bluebird near Kennebunkport, Maine.
Thank you for more excellent content my friend mike Brady.
Agree Murdoch gave command to STOP engines not REVERSE. Passengers reported no shaking or vibration which would have occurred if screws were reversed at 21knots. Titanic coasted into the iceberg.
Plus, reversing the engines would have made it impossible to steer.
you think after all the trauma of being freezing cold and put into lifeboats, and having your trip runied, they would remember a bit of vibration? Not likely.
@@Astronist So would an all-stop. When cruising, and especially as lower spees, the local velocity of water imparted by the props substantially higher than the hull velocity. Therefore ordering all engines stop considerably reduces rudder effectiveness. Assuming the officer wanted to port around the berg, it would have been better to keep the engines at ahead, and not stop or reverse.
😂@@keithammleter3824
I like your last warning. I was on a Disney cruise ship heading out of San Diego harbor and there was a tiny boat right in the channel - Disney blasted their horns so loud, like we're not stopping, you better get out of the way!
Solid vid! Kind of alluded to but worth noting directly that during a crash stop, with the screws in full reverse, the rudder basically loses all effect.
Beautiful content Mike. Thank you very much. Looking suave too, there, mate 😎
12:00 that's why small boat owners learn the most important rule of way: Under normal circumstances, the more agile vessel has to give way.
It works in traffic too. Physics says "Let the Wookie" win. 😂😂😂
But with boats, it's atually the regulation :)@@atrifle8364
Bigger vehicle has right of way. A large ship might not even see a small boat. And might not even know it hit it. Imagine a giant ship like the titanic plowing into a bass boat. It would be like hitting a cat with a semi truck.
@@gregrowe1168That's no contradiction. The smaller vessels are normally the more agile which have to give way. Only exception is when sails are involved, as ships with no engine are considered less agile. But in this case ... if you put up a sail boat, even a large one, against a container freighter, the sail boat ends up to be more agile.
Interestingly, that isn't true in road traffic; with road user substituted for vessel, of course. Not at least from legislative perspective. Maybe that's because vehicles can usually stop unlike vessels. Apropos, my reply to the title question: they are drydocked. All watercraft, except bottomed submarines, have to be drydocked to make them stand still.
Thank you,Mr. Brady, for another interesting and informative video. Looking forward to seeing more.
One reason really big ships start slowing down 50 miles back, is that there's often only enough water depth for the ship to enter its destination port at high tide - and however carefully the Captain may plan his passage to arrive at high tide, anything can change the ship's speed; like headwinds or waves on the bow that may only slow the ship by a fraction of a knot, but over a four-day passage, that adds up. There are two additional, grisly factors waiting in the wings at that point: when Torrey Canyon went aground on the Seven Stones, the Captain was down below, moving oil about in the ship. They were drawing 60' forward and 62' aft, and there'd only be ~61-and-a-half feet in the channel at high tide in Rotterdam the next morning. Coupled with the complication that tankers are a conglomeration of separate tanks which may be transporting several different grades of crude oil, and they CAN NOT mix the different grades, this job was not necessarily quick or easy. The second factor is that these big ships are almost unmaneuverable in shallow water, as the rudder is not nearly as effective with only a few feet of depth beneath it. Not a fun job...
And of course, it must be mentioned that in many ports there are cables, pipelines and even tunnels running along the bottom of harbours - and a ship dragging its anchors in an emergency stop can do hugely expensive damage to a port's infrastructure. The pilot should know about things like this, which isn't a lot of good if the ship doesn't follow the pilot's instructions... But that's a really good warning you gave: " - Small boats, STAY OUT OF THE WAY!"
Hey Mike, It's your friend Winton McReady again. LOL.
Thanks for another great video.
The Iowa-class, and presumable other dual rudder vessels, also had an emergency stop procedure they called closing the bar doors. Where you'd put over the rudders in opposite directions to increase drag.
Your channel has spectacular production quality.
Thanks for the info mike! i love the new style of videos you make. you've really advanced in video making since i first learned about you! keep up the good work!!
I was blessed with the chance to take my speedboat and kids to Thousand Islands area of New York. It was my first time around such huge ships on my little 20 footer. Never felt so small. But very neat to see.
Proper football used, nice 👍
Very informative. Thanks.
You have a wide knowledge and you turn attention to small details as well which is great. Do you cover modern ships as well? Like luxury cruise ships, modern yachts, aircraft carriers... If yes, please do some detailed videos.
I always wondered how these gigantic things could stop that well and go that fast. Like its a simple question at first like just reverse the propellers but its a lot more complex than i ever thought
Its actually surprisingly simple to work out in instances like this with low to no friction, like space ships, its newtonian physics, the force and stopping time required to decellerate the vehicle from to its maximum speed is directly proportional to the inverse, ie from going from a standstill TO top speed, since the ship applies full thrust in the opposite direction, theoretically, the stopping distance/time must be inversely proportional to the rate of acceleration from a stand still to top speed, so if you know how fast it does from 0 to 20, you know how fast it also goes from 20 to 0, since the equation is the same, just with some values inverted
@@GrumpyMunkyGameDesign Damm thank you for explaining it in such a understandable way make ssense now that i think about it. Have a nice day man
@@AtlanticPOGYou too my Dude!
I'm like "Yay a non titanic video" Mike Bridy proceeds to use Titanic as a unit of measurement.
Great video, very stylish.
Very interesting video, as usual. Great job. Thanks, Mike !
Excellent work on your video you have an awesome RUclips channel I like the documentaries as well on Maritime history.
Titanic full stop:
1) hit ice berg
2) sink
Vessel has now stopped entirely. Duration: 2h 40min.
Perfect 👌
8:20 Most modern ships have azimuth thrusters to provide control at low speeds. As a result, they do not require headway and water over the rudder for controllability.
this is incorrect, some modern ships do have azimuths, but the majority still use traditional propulsion
By driving into a suspension bridge obviously
I hear bridges can also serve as a braking device.
Um they should give it a try.
Much love from Zimbabwe
I’m so glad you’re my friend, Mike Brady. 😊
I haven't watched the video yet, but the answer is obvious. Force fields.
Excellent as always
Mr Brady I could listen to your narrative all night.
Paddle steamers can stop really quickly. It's their very nature. The floats act exactly like the ship brake, only one that works really well.
By chance I was looking at the Talisman's bell today. She was an LNER paddle steamer of 1935 that had an electric motor (GEC?) with a paddle wheel on each end; direct drive, no gearing. The Talisman was especially good at stopping. She could stop in about 2 lengths. I think she was 230 feet long. The strain on the motor must have been immense but it worked perfectly. The strain on the generator sets was another matter.
The wheels were rimless with 8 steel, later wooden floats. The steel ones caused the wheels to fracture but the wooden ones had more give and were far less harsh. I believe they were Canadian Rock Elm. The Waverley uses Opepe now.
Full details are in Talisman, the Solitary Crusader, by Alan Brown, but I don't have the book to hand just now so I'm going from memory.
We were becalmed in the mouth of the Brisbane in our sailing boat. My wife pointed to the charter boat and said watch out, it’s coming near us. I said that’s not the one I’m worried about as she turned to see the cargo ship bearing down on us.
Finally got our motor going just in time to get out of the way. That ship certainly wasn’t stopping in a hurry .
Another great video Mike, thanks. What effect, if any has the application of azipods had on modern shipping with regard to stopping and maundering?