What's Going Wrong With Fuel Efficient Ships?
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- Опубликовано: 4 янв 2024
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✩ABOUT THIS VIDEO✩
In this video, we investigate why some areas around the world are instructing large seagoing vessels to disable power limitation systems to navigate safely.
✩ABOUT CASUAL NAVIGATION✩
I am a former maritime navigational officer and harbour pilot, with a passion for animation. My hobby is presenting educational stories and interesting nuggets from the maritime industry and sharing them on social media to keep them freely accessible to everyone.
For training & educational use, I offer downloadable variants (free from all ads, sponsors, and social prompts) in the Casual Navigation Store: store.casualnavigation.com/
✩SUPPORTED BY PLUS MEMBERS✩
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✩WITH THANKS✩
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Howard Harper-Barnes / A Place For Us / www.epidemicsound.com
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✩DISCLAIMER✩
All content on this channel is provided for entertainment purposes only. Although every effort has been made to ensure the content is accurate and up to date, it remains the responsibility of the viewer to determine its accuracy and validity. The content should never be used to substitute professional advice or education. 
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No thank you
First paycheck of the new year. 😉👍
Not a chance. I use a service like that for the IP location trick, but the marketing material they use to sell the product is misleading. It's true VPN will hide your traffic on open wifi, but almost every site now uses https which encrypts the traffic between your browser and the site so the 'security risk' isn't there. At best the open wifi will be able to see the sites you visit, but not see the content. They may learn you bank at XYZ bank, but they can't see that funds transfer to your aunty. The only extra benefit of a VPN service there is that it masks the sites you're browsing, so the wifi hotspot can't observe your browsing habits.
In short, the implied "OMG your banking will be hacked on public wifi if you don't use our service" is rubbish.
The ability to mask your true location is the feature I use on my VPN provider (I chose one that doesn't make half-truth claims, just says we offer this, we cost this, and they support their VPN running on my router, a nice touch.) but even that has some limitations as a lot of streaming platforms block traffic from IP's they know belong to these sorts of services.
Don't forget that by using a VPN the VPN provider can see all your traffic just like your ISP does when not using one so make sure you trust that your VPN service doesn't log traffic. For Nord I find it suspiciously cheap compared to providers like Mullvad or Proton
One should also be aware that some content hosts know when you're on a VPN and will deny you access.
Why does it go to Japan when the mouse clicked Spain?
Cars: go too slow and you cannoy people
Ships: go too slow and you will have severe control issues
Airplanes: go too slow and you will literally fall out of the sky
This is nuts, i was never interested in this topic nor did I watch any videos on this topic, yet the algorithm has been recommending this channel for 2 years straight now. RUclips must LOOOVE this guy. His content is good and educational, granted
Spaceships: go too slow and you might never get into orbit and/or escape the gravity of the body where you start.
Helicopters:
So Jeremy Clarkson was right all along. Speed and power IS the answer.
@@m0-m0597 Deez NUTS
One engineering principle that I really wish that people would demand more of any automatic system is some form of complete override. When your product is going to be in use 20+ years eventually you will find more than one moment where the end user needs full unfettered control of the product without the normal restrictions imposed by automatic systems.
This is why I use an android phone and still run windows 7.
Sometimes I need to tell my shit what to do.
Overriding everything is a bad idea in some cases. There are fighter airplanes, that need to protect themselves from ripping their wings off from too harsh maneuvers. Also they usually keep the pilot alive by limiting g-forces.
Disabling that systems will kill the pilot within moments.
On the other hand, I was almost killed by a „lane assist“ feature in a car that wanted to follow a white line instead of the concrete barrier separating lanes in a road construction site. Those should be far easier to disable and off by default.
@@Gamer1928“turn off everything“ obviously shouldn‘t include basic operational requirements. If you shut off the electronics on a brake-by-wire or steer-by-wire system it just doesn‘twork anymore. Similarly you would never disable basic limitations on a fighter jet.
However, modern fighter jets also constantly adjust flaps to keep the plane flying because they are usually so aerodynamically unstable that you wouldn‘t really be able to fly them for long. In some mind of emergency however this system might do something dangerous, so being able to turn it off is important.
Edit: Also it should obviously be more involved than just pushing a single button. Deactivating should be a multi-step process.
Still, being able to put things into a ‚dangerous‘ mode is usually still a net benefit.
There's also just a lot of cases where a "helpful" automatic system causes more inconvenience by being unintuitive, unpredictable, or limited even if it's not actually dangerous.
@@Gamer1928That sounds like a bad lane assist system. Both cars I've owned that had that feature were designed so that you could over ride them very easily. Effectively what would happen if you turned out of a lane it will provide a moderate counter torque on the wheel, basically a "I think you're going to cross a lane boundary" warning, and if you continued to turn the wheel despite the torque it would very quickly release the counter torque.
It feels weird when you get the wheel resisting your movement, but like, that's literally the point of the system, and when I say moderate torque, I mean it, it's very easy to overcome it (and can even be calibrated to be weaker for those with mobility or strength issues who also need "light" steering).
Seems to me like ships need a “sport” mode like a modern car, where power & responsiveness are improved where conditions warrant it.
It sounds like ships have a manual mode, like modern cars that use a manual gearbox, where power and responsiveness are exactly what the driver commands at any time.
Direct handling mode
They can turn off the limit
Well some ships have a special "manuvering mode" where the engine goes to a higher rpm and the propellor pitch is more responsive than on the normal operation mode.
@@m1co294some ships literally can't turn off their power limitation systems, as mentioned in the video
Just want to let you know that next to this video I saw a recommendation for a James May video and I thought it was somewhat funny
Power restriction video next to a video featuring Captain Slow is amusing.
Yo, a James may video lead me here. Seriously
CLARKSOOOOOOOOON
I love watching James Mays disassembly and building stuff videos, he's a brilliant dude.
Now viewers, as you might imagine, I've done this properly. So, power limitation on, and engage.
This reminds me of how traction control kicks in on your car when you might be trying to steer with the throttle or are trail braking. Suddenly you are out of position.
omg i cant stand traction control... in the winter it is one of the most dangerous things to have on your truck. giving gas to spin wheels and bite for traction when trying to get on the freeway is a big deal but with traction controll you just end up capping RPM at 1500 and stuck at 12mph with your foot burried to the floor. then your side swipe, rear ended, or people up your ass behind you trying to get around.
@@beardedgaming3741Yep, it’s the worst. I was turning a corner in the snow (I have AWD and winter tires) and all of a sudden traction control kicked in and cut power and I started sliding into oncoming traffic. After that happened I always turn off traction control when driving in the snow
Tried to give my car a kick of throttle to try and get it back on track in icy conditions, but the traction control kicked in and killed my power and I ended up sliding into a crabapple tree.
You should be used to traction to control by now , it's been pretty standard for 30 years . I remember the days before it , you needed to know how to drive people these days can barely tie their shoelaces you want them in a car they've got to control without assistance ?
@@mathewkelly9968 none of my vehicles even have ABS
It is strange... I will probably never pilot anything larger than a canoe but I keep watching these videos because they are so interesting. Great job keeping them short, on topic, and super interesting!
Im serving on board a ship today
The coffee machine joke wa s spot on
Most informative part of the video.
It's a sail-by-wire system! Neat.
*Snail-by-wire
@@nellinkafotky8369 Zing. :)
More like EEC or FADEC imo. and such system on jet engines have been mature for decades I rarely heard anyone would complain it limits crew's control on the engine. kinda wonder why such system on ship still need to be disabled.
Because ships act differently. It's explained in the video that the systems are made specifically to slow down reaction time, so if they need fast reaction time they need to override it.
“Damn it Scotty! I said FULL POWER”
Good video. This an example of a good RUclips channel: human narration, professional - no bad language - no sarcasm, good scripting, and editing, informative, and entertaining.
How is there not a simple "pilot off switch" for this? It seems kinda simple...
On another note: Sentences like "on the ships I served" make these videos truly what they are! I honestly don't care for big ships in the slightest. But it's actually really rare to have someone on RUclips talking about shit they've actually been taught. And it's a nice experience to find such a channel. Thank you!
01:00 Your talking like there are tons of Ocean Liners. Only one comes to my mind actually 😂
technically, that is still tons of ocean liner.
The MV Astoria (originally MS Stockholm) is not quite dead yet, apparently being laid up in Rotterdam. Technically she is no longer an ocean liner, but she was born as one. I don't know if she was converted to thruster propulsion. If not, she should still count.
@@thekinginyellow1744 Noo, definetly doesn't count as an ocean liner. As you said, she is no longer one, as she did cruises for a very long time, before she was taken out of service. Only the QM2 swings regulary between Southampton and New York.
But yes, she do has 1 bow thruster :-)
Reminds me of the way cars behave now, I’m glad there’s still a place for the skill of a captain in shipping
when lane departure system came out - we started getting people who had crashed their brand new cars. the wheel would jerk one way or the other as they drifted close to the line OR they would go to merge with out a signal. the jerk would surprise them and they would WAY over correct. ive seen roll overs and hard slams into freeway dividers from that kind of reaction.
@beardedgaming3741 auto lane correctors are a bad idea. Sometimes, you need to drive on or over the line to avoid an obstacle. Also construction zone often force you to drive halfway outside the lane.
Can you do a video on how the navy and coast guard conduct search and rescue post tsunami? Specifically the Japanese ones since they probably have more experience. Where big ships are allowed, search patterns for medium boats, zodiac/rihb usage, shipping/supply management, that kind of stuff.
LEEETS GO it sa little ambitious but if he is up for it it d be great
The big ships don't do SAR, they serve as logistics & communications hubs. In the Tsunami, most of the SAR work was done by h-60 helicopters with FLIR. (Anything smaller than a navy cruiser is a "small" ship.)
Destin (Smarter Every Day) did one on the distinctive Zig-Zag / Wig-Wam search routes, and was granted access to a coast guard helicopter. ruclips.net/video/fU_pilTk624/видео.html
Makes me wonder if that ship that blocked the Suez canal might have been under economy mode...
Same, this was my exact thought after the last section of the video. "Was this the cause of the container ship getting stuck in the Suez Canal?"
definitely could have been if a burst of power was needed to avoid the collision.
All ships likely turn off the limit before they enter the canal for obvious reasons, it's just that massive ships like the Evergreen G-class are slow to respond in those situations even when the limit is turned off due to the narrow space and the slow speed that they go at.
Of all the many millions of ships that have gone through the canal, some may have had economy mode on, yet still they made it through. The Ever Given event was just one of those inctedibly rare inevitable moments, a freak accident.
CasualNavigation did an excellent video on it - I'm surprised you discovered this one first. Bank Effect played a huge part, but mainly there was a communications disaster between the local pilot, and crew who unwittingly overrided his advice.
Crash Stop Manuever is the ultimate ship’s engineering test. Look up the Paul R Tregurtha’s CSM footage. that +1000 ft long beast is shaking hard!!
This kind of reminds me of the increasing sophistication in software control of cars including throttle maps - there are aftermarket remap tools you can use to dynamically chance the accelerator response curve for efficiency or faster responsiveness, but there's also the more recent introduction of drive modes in newer vesicles that does all of that with more explicit and integrated control that the vehicle is designed to work with. Are more modern ships being designed with native control over power delivery in a similar way (ie the tiller itself does things like acceleration smoothing and control remapping to optimise for efficiency, but with explicit exposed controls that could be engaged to indicate an emergency manoeuvre either as a separate "drive mode" control or maybe by having an extended range on the control inputs with an immediate response guaranteed at the extreme ends of that range).
@@-DMFair, but I would hope commercial ship operators have enough common sense to realise that if there's a setting with a "comfort" mode that switching to a different mode will obviously be less comfortable...
Yeah the whole smoothness of how the engines are throttled up and down really struck a nerve lol. Idk if you’ve driven a modern car with a manual, but because the electronic throttle always closes gradually to reduce nox emissions, every time you change gear the revs keep going and it makes it so annoying for anyone who’s used to a cable throttle that just closes immediately when you lift off to change gear. Honestly would be a deal breaker lol
This video talks about how ships are sometimes required to disable the power limitation system for certain piloting operations.
I suspect this includes newer ships, and thus answers your question about whether ships could disable power management.
My car has electronic throttle control. My previous one used a cable. Although my new car is easier to rev-match when I shift gears, it honestly doesn't bother me. The engine responds instantly and the clutch is crisp. It doesn't mess me around.
I imagine that Toyota's electronically controlled clutch might annoy me, but I avoided that for other reasons. Honda still makes a great manual transmission.
I have been up the Houston Ship Canal on a LPG carrier several times, usually to New Warren gas terminal, Houston. These passages seemed quite fast.
On one occasion, the 2nd. Officer told us that the Pilot was on the VHF to ask a vessel coming downstream what they were carrying. The reply was "Biscuits", whereupon our Pilot told them to get out of our way, because "Butane and Biscuits don't mix".
This was many years ago, and I didn't see the other vessel concerned as I was on Engine Room watch at the time, but I was amused to hear about it.
As an aside, regarding slow speed and electricity generation, on several of our vessels the exhaust gas boiler could supply enough steam at full speed to run a turbo-alternator sufficient for the entire electrical needs. At slow speed, due to insufficient steam production a diesel alternator had to be run too. This was, of course, before the systems that you described were in use.
Well adding a ship mode led indicator to the captain's console panel along with a basic Norma:- (Slow open ocean Fuel-efficient mode), Performance-(High-speed good Fuel-efficiency), and high-Performance mode:-(All speed & Power with low Fuel-efficiency).
All the Different modes can also Add or remove all fuel consumption limits set by power regulator units according to what engine mode is set to additionally having some Variable speed controls work in parallel with each Engine mode it is set to.
Increasingly, this is happening in cars as well.
The levels of driving aids in the modern motor car is just crazy and I find myself in a battle for control whenever I drive my wife's newer car.
That's terrifying! Doesn't the owner manual tell some way to disable some of these automated systems?
Also, what model are you driving that has automation that seizes control? The Automated Driver Assistance Systems that I've heard about are all augmentation, for example a warning when you start to depart a lane. Well, there's also automated braking during cruise control, but that's cruise control and anyway not many people get upset that they failed to crash into the vehicle in front.
@@j_taylor Automated lane keeping tugs on the steering wheel when choosing better driving lines on twisty roads.
The automated braking system applies when continuing straight ahead off a roundabout behind a car that is turning...
After years of driving rally cars and enjoying driving, I'm not a fan of the car trying to do it for me.
I've recently purchased a '98 GC8 WRX for myself to drive, the only driver aid is ABS 😁👌
Seems like if it cannot be turned off that the pilot should order up a couple of tugs. Once the company gets the tug bill they’ll get their system modified.
Houston...the "Channel Chicken" capitol of the world. Can't imagine navigating that channel without instantaneous controls.
Didn't have those efficiency computers in my time that I'm aware of...guess that means I'm officially old.
You need to understand the costs of shipping, (Fuel, Port Fees, Each canal, Suez, Panama charges huge fees) because the time, labor costs and fuel to go around a continent is higher but these canals are Gouging shippers with Unreasonably high fees. Panama you get in Queue(Perishable, Time Sensitive Cargo) To jump the Queue you can add Another 15% or more to the Base Canal Fee.
was this the reason for the Suez Canal stopping in 2020?
Interesting....here in the Detroit area, we've had a few Great Lakes freighters transiting thru the Detroit and St. Clair River that have run aground while simply going thru the channel and no docking maneuvers. I think it must be complex in other areas with currents.
I find it hard to belive that people who have developed and implemented this power limitation system wouldn't have an immidiete first thought about the safety, and dont install a simple on/off switch
Speed restrictions can sometimes be rather... Administrative.
I the Swedish archipelago the speed close to harbours, and in straights are usually 5 knots.
This is normally something to reduce waves.
Most small boats however, tend to produce more waves in the area of 3-9 knots.
So, wooo.
Had to stand i front of the conning wheel in a small boat to even Se above to bow at that speed.
Lom
As a Norwegian l always assumed that boat speed restrictions were invented to give vacationing Swedish boat people more time to view and appreciate a proper country as they enter a Norwegian harbour 💪🇸🇯🖕
@@SofaKingShit haha hahaha! If I ever boat in Norway I'll make sure to honor that tradition 😂😘
Very very nice video and explaination. And 05:09 is very true.
New Casual Navigation vid lets gooo
😆😆 thanks for the honesty when the pilot get on the ship to get coffee first. That was funny.
A long time ago, someone told me that for many of the ships on the great lakes you would all for full ahead before breakfast and by lunch time the ship had started to move.
Every good idea carries within it the seeds of its own destruction.
Happy new year!
1 minute in, and already very interesting!!!
This is a very good instance of the efficiency trying to save pennies when the pounds are at stake.
I love this channel it help with my maritime studys
That add segway was fire!
Only system I've worked with - granted it was 20yrs ago - was a "load program" that was used between maneuvering full ahead and sea speed. If you were timed steaming at less than full sea speed, it would work within that zone from FA to sea speed (usually 93% MCR).
Can't imagine a car would limit the power when I need to quickly merge in heavy traffic!
Cars actually do dynamically remap throttle inputs these days, there's just fewer restrictions on it (because there's fewer requirements and a simpler powertrain) and the ones with more advanced control software expose those settings readily to the operator (drive modes include things like throttle responsiveness).
Yeah, but they don't do it because they want to maximalize fuel efficiency or useless stuff like that. Of course if you reduce maximum power not to break the engine or to maintain traction, it is completely different and justified story@@bosstowndynamics5488
Was this system responsible for the Evergreen grounding in the Suez Canal?
I wonder if this issue is part of what happened to the Ever Given in the Suez Canal?
Gotta admit, that was a SMOOTH ad segue....
Damn you upload fast!
Take a break if you need it
Thanks for sharing
Read the book "Dead In The Water" about marine insurance fraud and concluded shipping is not an industry I would invest in as a shareholder (as an owner it's probably different). Perhaps one reason a lot of shipping stocks seem "dirt cheap" (or as cheap as water in the sea).
Now that we're here, and the Dali hit the Baltimore Bay Bridge, what are the odds that the blackout/engine failure the appears to have happened is the result of a PLS being on, and large engine controls overloading the system causing a blackout, at the wrong time, which led to their collision?
I can't believe that there is no override on some ships. Seems like that best compromise is the switching to cleaner diesel near port and disabling the PLS altogether. Automatic pilot and road assist driving are cool but in the end. I know some planes are impossible for a human to fly without computer assistance.
Often wondered why in the 21st century that VLCC's are still only single screw as has been known for a century that multi screw vessels are far more manoeuvrable. Must be for cost reasons only.
Interesting and weird. Ships have been around for a very long time. Just as a piece of rope can replace autopilot I'm sure there were similar things even on masted ships. Maybe like a mid-masted sail that doesn't get you all the speed but can easily deal with variable wind speeds so everybody can relax and take a nap? Or that other thing, what am I thinking of... Oh yeah! CRUISE CONTROL! You know, like in your automobile? Won't engage under a certain velocity? Helps with fuel/engine efficiency on long trips?
In all fairness I'm pretty sure the shipping industry already wrote the book on long travel efficiency AND 3D navigation. And also insurance. The main point I got from your vid is that neither automation nor capability is the problem.
The problem is they installed automation but never put a !BYPASS! switch on the control desk. That's why Bow-Wingg managed to sell a plane that flies into the ground on purpose. Oh, and also apparently automatically disintegrates when off the ground. It's not a bug! It's a...! OK, it's a design flaw.... But digress I am...
Thanks, great job, please keep at it man! Everyone should learn to Navigate, Casual or otherwise!
ok that sponsor segue was smooooth 😂
Soooo, why isn't there a software mode for open water and confined water with suitable algorithms for all expected scenarios. If it can control the ship of fuel economy it can also control the ship for response and performance. Just like an economy mode and sports mode on a car.
Sounds to me there is not a whole lot into this. When I was sailing you had full ahead on the telegraph, and above that at sea or full seaspeed. Everything up to full ahead was instantaneous, going to full sea would activate a load up program of 20 minutes. The thing with manouvering is not so much speeding up or slowing down instantaneously, but adding more revs generally increases pressure on the rudder making it more effective. In close quarters near collision avoidance you generally go to full ahead for this reason. The vessel will not accelerate much in a short space of time but the added pressure on the rudder will make it turn better. Cargo vessels spend most of their time at full seaspeed so these fuel economy systems do not save all that much I would think.
Casual Navigation:" the easiest way is with a bit of software that sits between the Telegraph and the main engine intercepting orders to make them more efficient".
Me: Thats sounds awfully specific for a speed adjustment system in ships.
Casual Navigation:"it reminds me a bit of this video's sponsor..."
Me: NO DONT SAY IT
Casual Navigation:"NORDVPN"
Me: NOOOOOO! NOT AGAIN!
~ 😠
Sponsor block
Best over ride command is to say I’m the Captain now
What about the navy? Do they run these optimisation systems for fuel?
That was one S-Tier transition to the ad 😂
Smooth segue. 😂
One way I can see this problem being solved (especially with no override systems) is that the Power Limiter has GPS coordinates of every channel, and automatically disable when around 5 nautical miles from the entrance. Reactivate 5 nautical miles away
I've heard the same sort of comments about traction/stability control on the Dodge Charger Hemi V8 cop cars when they first came out. Gave the cops a false sense of security in that if you are engaging stability control, you really are out-driving the car and need to back off. Or the stability control/traction control would kick in a way that the driver was not expecting it to throwing the balance of the car off in a high speed maneuver. The old Ford Crown Vics didn't have stability control(and were down 100hp vs the Dodge) so they handled different if you pushed them to the limit. Also you weren't going as fast in a Crown Vic so it was easier for an unskilled driver to correct at a lower speed, it was harder to outdrive the car.
When they do sea trials do they test with a fully loaded ship, an empty ship or some load in between (3:50)?
This overlaps somewhat with the concept of a battle short.
Where a security feature triggering could sink or ground the ship.
Why not made a modern ship just like a modern car, which has a choice of driving modes, such as eco mode and performance mode.
I assume those power limitation systems are after market add-ons for older vehicles, but would be very interested in hearing if they're still aftermarket only for modern designs or if they have been implementing more integrated control approaches like the drive modes on modern cars
Those modes adjust suspension and gear shift timings. Ships have tons of adjustment options for these systems and are adding sensors these days just like cars. It's a problem that's solved by making more advanced systems rather than regressing back to direct control.
I mean, driving too slowly may be dangerous as well. I can't say that I know much about it, but I guess it's mostly about the idea that all cars in traffic should move at the relatively same speed; moving slower is perhaps not as dangerous as speeding, but disrupts the traffic in a somewhat similar way.
Driving slower is in fact more dangerous than speeding. I have a theory that it is always better to be faster than slower compared to other cars - The most important factor is that you see much better in front of you compared to sides (merging with traffic) or back (distracted cargo driver). Also if anything goes south, the most sasfe collision is front one - you have the most deformation zones there to absorb the energy of impact. Also driving slow makes all the others hate you, overtake you and that makes lot of dangerous situations. If I could choose to drive 70km/h or 30km/h in a 50zone, always go for 70.
When you drive beyond (below or above) the speed limit, you know that you're doing this. If you drive too fast, you will anticipate approaching vehicles that go at the regular speed, and need not worry about them responding to your speed as you yourself will understand that you need to act appropriately.
If you drive too slowly, however, approaching vehicles have a heavy disadvantage in regards to realising that their approach velocity may be too high. As such, you are putting other people in the active role without giving them the knowledge thereof.
Therefore driving too slow is far more dangerous than driving too fast (assuming you can operate and manoeuvre your vehicle at such speed)
@@nellinkafotky8369As someone who agrees that overly slow drivers do create dangerous driving conditions for others, I don't agree with the broad statement that driving slow is always more dangerous than driving fast. There are plenty of conditions where it's absolutely safer to drive under speed even compared to merely at speed, and driving over speed carries a number of fundamental safety hazards that can't be mitigated (higher collision energy, shorter effective reaction times, other drivers not realising how quickly you're going to pass through a give way intersection etc etc).
Often the biggest safety hazards caused by slow drivers aren't even them going slow in and of itself, but them driving inattentively and carelessly when it comes to navigating overall traffic flow (driving slow in the slow lane of a multi lane highway is far safer than driving slow in the passing lane while obstructing faster moving traffic, which creates unnecessary frustration and encourages aggressive manoeuvres by other drivers trying to pass you, for instance).
@@nellinkafotky8369the problem with speeding is that you can't expect everyone to go at the speed limit. There will always be accidents/broken down cars/tractors that make the traffic slow down/stop. By going faster than everyone around you are giving yourself much less time to react because your stopping distance increases exponentially with speed.
Well of course there is speeding and there is "speeding". One is driving like a crazy person, the second one is just driving over the speed limit. I tend to drive over the speed limit quite often but only if the conditions are good - visibility, road conditions, not overtaking on one lane road unless it is 1000% safe etc..@@vilkku792
So freighters generally are built without thrusters at all? Wouldnt they make docking more practical?
thanks for putting my home city in there Liverpool
Isn’t there an option or setting to change the response from the software? I’m thinking about some cars that have an “economy” or “sport” mode for different situations.
Why are there 2 mapped out red areas on the ships tachometer?
As engineers we know that smart technology is more trouble than it's worth for many applications. If you want the engines to be more efficient then you tell the person at the helm to drive better or you give the telegraph handle a little button to be held when you want a gradual change. Aircraft pilots manage just fine when they get a new button and so can maritime pilots.
We used to say "Never let a computer make a decision because it can't be held accountable." and we need to bring that back immediately.
well thats why the smart tech is turned off when it has the potential to cause more trouble... as the video explains...
Fortunately, Casual Navigation just released a video about why ships sometimes disable the automation that you mention. 😀
@@redbean9410 Of course, and usually it does turn off! Sometimes however it doesn't respond as it should and causes an accident, which is the point of the video. It's a feature that is better turned on when needed than turned off when not. You want software like that to fail to a known state that prioritizes safety above efficiency.
I'd rather pay a little for human inaccuracies than risk paying a lot for the inaccuracies of an imperfect program. If I was captain of a ship and silly software decided to ignore what it was told to do and caused someone to get hurt, I wouldn't have a cow; I'd have an *aurochs* about it.
Have you done a video about how they're experimenting with high tech. sails? I don't know much beyond that it's being looked into. Just an idea for a video.
Not related to this video, hoping the mariners here can answer a question for me.
Today on the Liverpool to Belfast ferry we passed/overtook another ship, a dredger.
Do the officer's on watch/ masters acknowledge each other from the bridge? Eg wave , say Hello over radio. Or is it strictly keep your distance and course, keep comms clear unless required
I was working on the Liverpool to Dublin ferry and when we were still sailing on the Mersey river, you have to report to a vessel traffic control system (Mersey VTS). They have a radio channel which is dedicated to traffic on the river and there you make agreements regarding overtaking and movement in general. Probably you will contact the dredger and VTS before overtaking. Once you are off the river, you are free to do what you want as long as you follow international regulations. At sea I was only contacting other vessels before overtaking or crossing if I required their assistance.
feels like every system has this issue at some point when you start to add automation into a control by wire system
5:50 anyone notice the "smiley face" cloud? 😊
How do you illustrate your ships in your videos?
Thet was the smoothest transition to a NordVPN sponsor section I've seen.
Smooth sponsor spot ngl
i doubt it was the fuel conservation system that caused the suez canal blockage.
i think it was the captain being bored and using the navigation path history to draw a naughty shape.
what happens if someone goes into the engine room and pulls on throttle cable manually?
while they can manually rev up the generators unless the electric motors has a similar throttle cable system they couldnt control it manually
Sound similar to an airplane's direct and alternative laws. Alternate law will override the pilots to prevent over banking and stalls. Direct law will not. Pilots will switch modes whenever there is a systems failure for better control of the plane
easy way to explain: the sea has waves, tides and current. when entering shore, those thing can move your vessel if he you are too slow
Sounds like a good thing to have geo-fenced.
You should make longer videos
So, you're saying NordVPN is unsafe to use in the Houston Ship Channel?
Where are the sources for information in the video?
Most vehicles occasionally need adrenalin.
"Environmental reasons"... My heart goes out to all of you, the UK prisoners. Many of you don't even recognize their prison for what it is.
Why isn't there a Pilot Key to override all ships control systems?
Thank you for the video. Commenting for the Algorithm.
why was that ad like a quarter of the damn video. istg
Well, if You run Into the ground you still stay in the Channel…
a certain orang utan would say POWERRRRRRRR
Houston, Texas?
Same thing happens with hybrid cars.
The pikot, to go through the Panama canal came on to the bribge, turned his baseballl hat in reverse and said "Let's see how fast she(ll go".
So it’s kinda like why drifters turn TC off
ok so about NordVPN
how do i know that their servers are not selling my information. Thats no better than somebody else doing it...
It’s almost like people implement things without thinking consequences
4:35 Or both
Minimizing fuel consumption is not about "environmental reasons" - it's all about cost and efficiency.
hi
So a power limitation software is like an autopilot for the engine? In that case, shouldn't all system have something a disengage them easily? Ships might be slow but there are situations where the crew would need to squeeze every bit of power they can from the ship at the shortest amount of time to avoid something so in my opinion, this kind of system should just have a big red button that when pressed would switch the ship's system from automatic to manual to give the crew the freedom they need.
What do you mean with manual? A giant steering wheel to mechanically push the propeller in a different direction?
@@eljanrimsa5843 manual in a sense that the computer won't interfere with the input of the helmsman. If the helmsman inputs "full astern" the engine would switch gears and go to full astern without any interference from a computer program. The a narrator said that in some cases, the power limiting system can't be disabled in some ships which I think is dumb. What if you saw someone about to collide with hit and you needed all the power you can get from the enhine to move out of the way but the power limiting system prevented you from doing so?
Not a fan of the mid video plug… can you do the ad at the beginning or the end instead?