HOW DO YOU WEIGH A SHIP?

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Casual Navigation

Casual Navigation

5 жыл бұрын

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For most things, you can use a set of scales to weigh them. With a ship, things are slightly different.
In this video we explore how sailors determine exactly how much their ship weighs and how you can work it out yourself.
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Images used under license from Shutterstock.com
World Map - Ekler / Shutterstock.com
Draft Marks - by Hugh Nelson (flickr) - CC-BY-SA creativecommons.org/licenses/...
Draft Marks Roman Numerals - by Paul VanDerWerf - CC-BY - creativecommons.org/licenses/...
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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.

Пікірлер: 739
@lifethrownoutofthewindow
@lifethrownoutofthewindow 5 жыл бұрын
I literally will never use this information in my entire lifetime but man did i spent my 5 minutes well.
@ssi3262
@ssi3262 5 жыл бұрын
maybe u do if u work on a shipyard
@lifethrownoutofthewindow
@lifethrownoutofthewindow 5 жыл бұрын
@@ssi3262 😂
@ceriabestsb3023
@ceriabestsb3023 5 жыл бұрын
We used to calculate ship's weight before but I'm more of assisting my superior.Anyway I used to calculate barges as they were simpler.On the big ship I mostly take record of tanks sounding.
@matthewgillespie2835
@matthewgillespie2835 4 жыл бұрын
ViniByte might come up in a conversation sometime, if your brain found it important and you remember the details, small or big. It’s amazing how many “useless facts” I’ve learned watching videos like these have come up as an additive to conversations about various things.
@vvdaniii244
@vvdaniii244 3 жыл бұрын
Lmao no cap doe
@thealleys
@thealleys 5 жыл бұрын
I have no practical purpose for knowing this information... not one... but damn that was interesting.
@filiparsovski4250
@filiparsovski4250 5 жыл бұрын
Quiz shows?
@scottwhitley3392
@scottwhitley3392 5 жыл бұрын
Become a marine engineer or deck officer, you’ll get sick of this pretty quickly 🤣
@kenbtheman
@kenbtheman 5 жыл бұрын
I just add it to all the other useless information that I will never use that floats around in my brain.
@QuantumRift
@QuantumRift 5 жыл бұрын
Well, the next time you see a ship, you can point this out, and say "Damn that ship's sitting pretty low in the water, carrying a lot of cargo..." and then go into how you weigh a ship....
@scottwhitley3392
@scottwhitley3392 5 жыл бұрын
QuantumRift people don’t realise it, but as much engineering goes into making a large ship float as does Making a large plane fly
@femanvate
@femanvate 4 жыл бұрын
I'm adding plimsoll marks to the mother-in-laws pool: finally gonna figure something out
@TurboJenkins
@TurboJenkins 4 жыл бұрын
😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂
@prtcgv5105
@prtcgv5105 4 жыл бұрын
Ha ha ha!!! Very clever indeed...
@deen7052
@deen7052 4 жыл бұрын
Good one
@Make_Boxing_Great_Again
@Make_Boxing_Great_Again 4 жыл бұрын
🤣🤣🤣🤣
@sarkedev
@sarkedev 3 жыл бұрын
And if she floats, she's a witch!
@TGears314
@TGears314 5 жыл бұрын
I’m so glad the principles I’ve learned as an engineer can help me predict the answer to questions like this before watching the video. It’s so great to know that not only was I taught well, but there are genius creators like you on KZbin here to make the “hard” stuff accessible for us all
@101jir
@101jir 4 жыл бұрын
I figured it would have to do with water displacement, but exactly how that was done was a lot simpler than what I had in mind.
@Aliquis.frigus
@Aliquis.frigus 2 жыл бұрын
I'm not an engineer, still called it.
@ViperGTS737
@ViperGTS737 5 жыл бұрын
this channel will have a lot more subs in the future, thanks for the high quality explanation
@natedunn51
@natedunn51 5 жыл бұрын
ooh neat, episodes on subs will be cool
@Arbiter099
@Arbiter099 5 жыл бұрын
will they form wolfpacks? I might need some more escorts for my convoys
@TrickiVicBB71
@TrickiVicBB71 5 жыл бұрын
I can see this guy having a few hundred thousands or a few million.
@Oberon4278
@Oberon4278 Жыл бұрын
I really prefer the videos on surface ships.
@Naturenerd1000
@Naturenerd1000 5 жыл бұрын
Fascinating. Genius to paint the numbers on the ship to see how much lower the ship is telling you the weight. It's such a simple brilliant solution.
@clansman89
@clansman89 5 жыл бұрын
And then there are Americans with their units
@bitpumpkinn2923
@bitpumpkinn2923 5 жыл бұрын
@@clansman89 Uhh, you forgot to put 'superior' right before 'units'...
@theworldoverheavan560
@theworldoverheavan560 4 жыл бұрын
@@bitpumpkinn2923 lol
@ahriman935
@ahriman935 3 жыл бұрын
@@bitpumpkinn2923 Pffft hahaha. Even many americans engineers think imperials are retarded compared to SI units. Meanwhile not a single SI user will say that imperial units are better. Your units are so superior that they are all literally DEFINED using the metric system and NASA already used metric units when going to the moon in 60s. Superior, right...
@toml1446
@toml1446 3 жыл бұрын
@@ahriman935 nasa used both imperial and metric on the moon landings
@bagdok4695
@bagdok4695 5 жыл бұрын
Nobody: KZbin: Hey, wanna know how to weigh a ship? I'm not complaining tho.
@FreakSX93
@FreakSX93 5 жыл бұрын
For some reason many people don't seem to be interested in the details that keep the world running :I
@saintshaye1177
@saintshaye1177 5 жыл бұрын
@@FreakSX93 agree
@vvmvx
@vvmvx 3 жыл бұрын
@@FreakSX93 same
@livethefuture2492
@livethefuture2492 3 жыл бұрын
without watching the video, i'm guessing its something to do with the amount of water displaced, buoyancy, and Archimedes principle. edit: yay i was right! now if only i remembered that in high school...
@onemoremisfit
@onemoremisfit 3 жыл бұрын
Nobody: Will it fit in my Honda? Hold my beer Am I a joke to you? Asking for a friend Everybody gangsta End this man’s whole career He protecc, he attacc … Sexual/genitalia innuendo Scatological/potty joke Question of quantity answered yes Plot twist Left/entered the chat Gaming reference Dislikes are from I’m a simple man Not gonna lie Last time I was this early Legend has it That’ll buff right out Fun fact (X) be like (X) intensifies (X) wants to know your location Ha ha (X) go brrrrr POV: (X) YT algorithm counting down years Who’s watching in current year? You Tube recommendations So you've chosen death? Understandable, have a great day Punch line below read more
@mustafanizambijunizam3475
@mustafanizambijunizam3475 5 жыл бұрын
Absolutely wonderful, I had never given a thought as to how the weight of the cargo is measured. Now, I got a clear idea.
@MrFinesse316
@MrFinesse316 5 жыл бұрын
Not sure why this was in my recomendations.. But, i feel ALOT smarter than the average person now that i have a fact.. That most people dont know
@QuantumRift
@QuantumRift 5 жыл бұрын
Well, it's an observable common-sense thing: If you see a ship sitting low in the water, you know its carrying a lot of cargo...
@MrFinesse316
@MrFinesse316 5 жыл бұрын
@@QuantumRift you are absolutely Correct .. For those that have SHIPS AROUND THEM OR ARE CLOSE TO AN OCEAN..
@W0DAN88
@W0DAN88 3 жыл бұрын
@@MrFinesse316 I've been living near an ocean my entire live But isn't that totally obvious even for someone who never was near a boar/ocean?
@MrFinesse316
@MrFinesse316 3 жыл бұрын
@@W0DAN88 sure it is. ! Do u feel better about yourself now? It was litterally a joke of a comment but hey.. if ya wanna chime in Please do so. I live in West palm. BEACH FL.. SURROUNDED BY WATER.. oWned 2 boats at one time or another.. But didnt feel like bragging. . I did however give the appropriate comment that flowed with the purpose of this video. But theres always sumone That thinks they know it all... But hey.. Have at it. I know.. 134 other people enjoyed my comment, while u.. , well.. Yeah.. just trolling middle of the night. Bravo.. Bravo. Go back to playing videos games kid.
@StormP666
@StormP666 5 жыл бұрын
Never thougt of that and the first thing i thought by weighing a ship was 'Well, you put it in a dock and measure the displacement'. But when you said you measure it all the time, i was a little bit sceptical about my solution. The answer was so simple, thanks for the great video!
@101jir
@101jir 4 жыл бұрын
Yeah, I was thinking the same thing.
@XarryKlynn
@XarryKlynn 5 жыл бұрын
I am a custom broker from Greece, and your videos make me learn so much that I didn't concern when I do my job. Thanks subscribe
@ApfelmannYT
@ApfelmannYT 5 жыл бұрын
You definitely deserve a lot more subs and views, great video!
@CasualNavigation
@CasualNavigation 5 жыл бұрын
Thanks Apfelmann. Glad you enjoyed it.
@cjz5757
@cjz5757 5 жыл бұрын
I'll keep this in mind for the next time I weigh a ship
@skitzmisfits4695
@skitzmisfits4695 5 жыл бұрын
I'm a marine mechanical engineering student and I've honestly learned more from you than I have for the past 3 years in college lol, terrible innit
@pokeman316
@pokeman316 Жыл бұрын
I assume you graduated and are now working. How are things? From a 4th year civil engineering student
@skitzmisfits4695
@skitzmisfits4695 Жыл бұрын
@@pokeman316 quite alright, landed a port state control job somehow now i've moved on to marine search and rescue.
@lenpowell6647
@lenpowell6647 5 жыл бұрын
Maths and physics are beautiful sciences,s .Without them we would in fact be lost at sea ( terrible pun!) Cheers and good content. Len.
@Jpgundarun
@Jpgundarun 5 жыл бұрын
Now, If someone ever asks me to weigh their ship.
@concept5631
@concept5631 3 жыл бұрын
Go on.
@Jpgundarun
@Jpgundarun 3 жыл бұрын
@@concept5631 Are you asking? Bring it on over.
@sayethwe8683
@sayethwe8683 5 жыл бұрын
as someone who wishes to be a naval engineer, I'm sad I didn't find this channel earlier.
@jowsey
@jowsey 5 жыл бұрын
I will absolutely never ever need this information ever, not at any single point in my life... But I still feel like this is crucial info I need to know
@BertGrink
@BertGrink 5 жыл бұрын
You can always use this knowledge to wow your friends at parties ;)
@leokastenberg800
@leokastenberg800 5 жыл бұрын
When I saw this video I thought, "I guess just displacement." I had no idea there were so many other factors that went into it. I didn't even consider how you would measure the height of water displaced.
@generalharness8266
@generalharness8266 4 жыл бұрын
You don't though. If you measured the height of water displaced you would be measuring the sea level. You are measuring how far into the water the ship is. Minor I know but im nit picky.
@enoz2
@enoz2 5 жыл бұрын
i bought a small 20 footer from someone , been wondering how much it weighs for a while now . cool now all i gotta do i chuck the boat in my swimming pool and now know the weight now!
@CasualNavigation
@CasualNavigation 5 жыл бұрын
That would be one way of finding out!
@tommieduhswamy6860
@tommieduhswamy6860 5 жыл бұрын
Silly billy....take it to the weigh station. Then ask them if they know where the nearest lake is.
@Dezwrr
@Dezwrr 5 жыл бұрын
I'm driving all the way from Atlanta Georgia to Chattanooga Tennessee, and I must say I truly appreciate the time you've taken to make this video as well as your other videos.
@kevinelrayorignal
@kevinelrayorignal 5 жыл бұрын
I'm a navigation Student from Jamaica. I'm gonna let my schoolmates know of this channel. Keep up the good work
@LogikalMindset
@LogikalMindset 3 жыл бұрын
I've worked on ships for over 10 years and I still learn something new every time I watch one of your videos! Keep up the good work and good content!
@simonderweduwen9611
@simonderweduwen9611 2 жыл бұрын
I have watched ur videos before and I was like everyone in the comment section. But now I am actually studying maritime officer and I am actually learning all about this and ur videos really helpen me get a headstart. Ur videos also helped me see this is the job I wanna do, so thx for that.
@njebarr
@njebarr 3 жыл бұрын
We do something similar with aircraft. Passengers are split into average men, women, children and babies (babies weighing nothing for our purposes). All the hold baggage is weighed as it is checked in, all the hand baggage is included in the average weights of the passengers, so we end up with pretty good idea of the weight we're going to take off with. Then there is a safety factor on everything from weight to headwind component to length of the runway. All that gives us figures for the speeds at which we take off and climb and the amount of power we need to set on the engines. That is great for getting us off the ground safely, and the gross weight is still needed by the flight management computers for calculating fuel use At the other end, the actual speeds we need to fly the aircraft are quite critical when you make an approach at your destination. The speeds we use here are not based on any figures we've entered before, but on all the probes on the outside of the aircraft. If you know the temperature, altitude, airspeed and angle of attack then you can work out the weight of the aircraft. That figure isn't particularly useful to us but what is good is knowing when you look at your instruments, the characteristic speeds are accurate based on the way the plane is flying.
@jfloresmac
@jfloresmac 4 жыл бұрын
Someday Im gonna impress someone with this knowledge. Thank you very much. hehehehe
@HaloPlato
@HaloPlato 3 жыл бұрын
Even when I know the answer to the question I still watch your videos. I find that even when I know how something is done (or why), I will still learn something loosely related to the topic that I didn’t know previously. In this case it was that larger vessels experience fluctuations in the alignment of their hull so frequently that there is terminology for it.
@Barrys-got-crabs
@Barrys-got-crabs 5 жыл бұрын
Came here from your most recent video but the comments are absolute cancer. Fantastic editing and information delivery! I look forward to seeing more of your stuff. Cheers, you earned another subscriber
@zell189
@zell189 5 жыл бұрын
KZbin : C'mere boi let's learn to weigh ship Me : cool let's go
@garyvancollins6762
@garyvancollins6762 5 жыл бұрын
I always wondered what those number were for. Now I have the formula for them. Thanks and well done.
@BritanniaMotorcycles
@BritanniaMotorcycles 3 жыл бұрын
I spent over twenty years doing draught surveys as a cargo surveyor, the good old "mean of means of means" and the lifesaver "ship's constant". Nicely described
@mrpaddingtonn
@mrpaddingtonn 4 жыл бұрын
I have no idea why at 2am I watched this video. I guess curiosity. Very well explained. Thank you
@topografer
@topografer 4 жыл бұрын
Damm the internet is such a great place. Well explained sir
@munenex
@munenex 5 жыл бұрын
I admire the simplicity of the explanation. Understood the formula perfectly
@vernalc2449
@vernalc2449 3 жыл бұрын
The BEST explanation of what those numbers on a ship are for. We probably ALL knew they measured how deep the ship Sat ibn the water but calculating the weight of the ship was a revelation. (OK, maybe it just rekindled a long forgotten math problem in school, which, BTW, was "a long time ago, in a galaxy...")
@FOWBOWZ
@FOWBOWZ 5 жыл бұрын
The way you explain things is just so perfect for me. Great graphics too
@aliozanerbektas
@aliozanerbektas 5 жыл бұрын
The volume of the ship below the sea level times the density of the water. I love you all.
@harrymakongwa1147
@harrymakongwa1147 5 жыл бұрын
Me:I like motovehicles videos,technology, animals, KZbin:Ok then we will recommend you a ship video even you don't have a cargo to ship . Me :Ok let me see it KZbin:Here it is. Me:It's very informative and in have enjoyed it . KZbin:We will recommend another one . Me:😊😊🤗🤗
@Foersom_
@Foersom_ 3 жыл бұрын
Soon you will likely also have train videos recommended. ;-)
@harrymakongwa1147
@harrymakongwa1147 3 жыл бұрын
@@Foersom_ Hahahaa absolutely yes that's KZbin Algorithm..
@4lifejeph
@4lifejeph 5 жыл бұрын
You have a great channel sir. You answer questions I never knew I had.
@eliane2743
@eliane2743 4 жыл бұрын
Thanks a lot for the content. As stated by other viewers, and as a landman with recurring questions on boats, these are the kind of videos that leave me wiser. And as is the case with similar channels on other topics, I am dumbfounded by the amount of red thumbs... if you are not interested, just go away.
@concordocean4929
@concordocean4929 Жыл бұрын
This channel represents one of the best educational videos for shipping knowledge. I shall watch them carefully one by one subsequently.
@TeaInTheMorning-we2kh
@TeaInTheMorning-we2kh 2 жыл бұрын
I always love these simple elegant solutions people come up with to solve a very difficult sounding problem.
@adamjurczak8606
@adamjurczak8606 4 жыл бұрын
love your explanations. I am marine eng. so its nice to show your videos when I want to explain GPS, Toilet on a ship.... 10 years old boys as a lot. ;-)
@AliHSyed
@AliHSyed 5 жыл бұрын
Oh great.. another high quality informative niche KZbin channel... Exactly what I need at 3 am 🙄
@benconway9010
@benconway9010 5 жыл бұрын
Sarcasm detected by the sounds of it?
@RemoraMarine
@RemoraMarine 5 жыл бұрын
Fabulous. It all boils down to how well the naval architect did his job and how well the yard followed the plans. Good enough.
@guillaumeromain6694
@guillaumeromain6694 5 жыл бұрын
Great content! Thank you for the effort. Very enjoyable
@CasualNavigation
@CasualNavigation 5 жыл бұрын
Thanks Guillaume
@gregrogers4376
@gregrogers4376 3 жыл бұрын
1) step on scale & write down your own weight. 2) step off the scale & pick up the ship. 3) while holding the ship step back on the scale & note the weight. 4) subtract your weight from the total and there is your answer.
@JDnBeastlet
@JDnBeastlet 3 жыл бұрын
Very interesting and informative, and very clearly explained. Thanks for sharing!
@thomasgoller7621
@thomasgoller7621 Жыл бұрын
I used to be a dock operator at a rock quarry on the Ohio river west of Louisville KY. My job was to operate a set of winches that moved a barge up and down river as large dump trucks dumped material into the barge. When finished I had to walk out on the barge and measure the freeboard at every corner. Hopper barges loaded down to 18" of freeboard had around 2200 tons onboard and flat deck barges were right around 1200. We only measured 4 points as barges are only about 200 feet long. Once measured those numbers were radioed up to the switchboat pilot and he wrote them down in a log.
@bpccmath251calculusiihitch4
@bpccmath251calculusiihitch4 5 жыл бұрын
Always wondered. Thanks for the education and satisfying my curiosity.
@spencerrobbins7459
@spencerrobbins7459 4 жыл бұрын
I love your videos, thank you for making them!!
@dsara6865
@dsara6865 3 жыл бұрын
I always wondered what those numbers were for I learned something this morning thank you
@andyjohnson4907
@andyjohnson4907 3 жыл бұрын
I never thought I had an interest in ships, but this channel is fascinating.
@stephanforray4987
@stephanforray4987 5 жыл бұрын
Very good explanation. But miss to explain the symbol next to the draft marks. This symbol is call the “Freeboard” mark. Freeboard mark: Vertical distance from the main deck of a vessel to the cargo line indicating the maximum authorized draft by the shipbuilder.
@rolandpedraza1341
@rolandpedraza1341 5 жыл бұрын
Excellent ! Since I'm from the aviation side, I knew about weight and balance, but was curious how it was done on ships. Really enjoyed and Thanks ....
@jekiapp
@jekiapp 5 жыл бұрын
so how do they weigh an airplane?
@ruthedwards7775
@ruthedwards7775 5 жыл бұрын
@@jekiapp balance points taking the weights at known arms from the aircraft's datum point then calculating using sign convention (neg. & pos.). All aircraft will have a manual section giving the datum and known arms, enabling you to determine the aircraft's basic weight and c of g,
@KuraIthys
@KuraIthys 5 жыл бұрын
Pretty much. I've never done it yet in my pilot training (my instructor doesn't seem overly concerned with it - probably because he only cares if our combined weight is in spec), but if you look at the pilot operating manuals for most aircraft you see a reference point (ours is the front of the aircraft just behind the propeller, and the centre-points for where various things get loaded into the aircraft. For instance, a distance (Relative to the front of the aircraft) that shows where each row of seats is, where the cargo holds are, and where the fuel tanks are. You then calculate (using either actual weights, or estimates) how much weight is in each location, and then you use a bunch of tables to calculate your weight and balance. There are usually only figures for balancing the aircraft front to back, not side to side, since that's far more important. An aircraft that's too tail-heavy is unstable, and behaves chaotically. An aircraft that's too nose-heavy becomes stable to the point of being uncontrollable. The balance between the left and right doesn't matter anywhere near as much. Calculating the weight and balance for an aircraft is very important, because if it's out of designed ranges the aircraft can become dangerous to fly, if not entirely unflyable... I also hear some aircraft can automatically determine weight and balance by using force sensors on the landing gear and measuring how much pressure is on each point. Don't know how common it is, but I know it exists...
@jekiapp
@jekiapp 5 жыл бұрын
@@ruthedwards7775 thanks for your explanation, but I don't understand anything you just said :D maybe better if I jot down How to weigh aircraft in youtube or google.
@RastaPilot737
@RastaPilot737 Жыл бұрын
@@jekiapp the easiest way is that every aircraft has it's dry operating weight, given by the manufacturer, then you start loading the aircraft, giving the zero fuel weight, and finally you add the fuel weight, which on small aircraft gives you the take off weight.
@johnkelley9877
@johnkelley9877 4 жыл бұрын
I have seen the numbers on the bow, stern and mid ship but I never knew how they were used until now. Thanks for sharing this interesting information.
@hnkabraham
@hnkabraham 4 жыл бұрын
Interesting information. Thanks 😊
@TheTomCruiseLover
@TheTomCruiseLover Жыл бұрын
Easy !! Step 1: use GRU's shrink ray and point at ship: when 1/2000th the size, grab out of the water and place on gram scale. Be sure to grab entire ship with cupped hands and lift up Step 2: multiply mass by 2000 and place boat back in water. MAKE SURE TO STEP BACK at least 2000 the width of the hull Step 3: wait for naffario effect to make ship back to it's original size and you're done !! 👍🚢🚢
@BhanuPratap-zp8vv
@BhanuPratap-zp8vv 4 жыл бұрын
and or radar . your teaching way is so cool very easy to understand
@kellypenrod2979
@kellypenrod2979 4 жыл бұрын
Always wondered how that was done. learned something new today!
@eatyoursoulthenumnums8183
@eatyoursoulthenumnums8183 3 жыл бұрын
Thank you so much for this knowledge. My mind and brain is happy now,.
@allan500m
@allan500m 5 жыл бұрын
Thanks for the very good explanation.
@welshpete12
@welshpete12 5 жыл бұрын
An excellent series , fascination stuff !
@_monti142
@_monti142 4 жыл бұрын
very high quality video
@nvlarcht
@nvlarcht 4 жыл бұрын
As a naval architect, good job!
@uchiha05
@uchiha05 Жыл бұрын
this channel is a treasure
@revpitty001
@revpitty001 5 жыл бұрын
Just learnt something new, thanks
@felipebetioli4391
@felipebetioli4391 4 жыл бұрын
I LOVE THIS CHANNEL!!!
@biTTpolE123
@biTTpolE123 5 жыл бұрын
Interesting, because I studied this in mechanic of fluids in my past semester, but it didnt came to mind we couls use it to weigh a ship! Very interesting to know it! 😊
@shashanksagar1534
@shashanksagar1534 4 жыл бұрын
Well it can be explained even in simpler terms: Step1: Remeber Archemedies principle. That is the amount of water displaced by an object is equal to its weight. Step2: Using the same principle, Initial draught survey is conducted when the ship is built and its empty displacement (the amount of water it displaces when the ship is empty+its equipment on board+crew quarters+fuel on board). From here we get the empty weight of the ship. Step3: Here the cargo is loaded on the ship, and the amount of water displaced can be noted. Step4: DWT(Dead Weight Tonnage) or carrying capacity is. Loaded displacement- Actual displacement = Net carrying capacity of the ship.
@rameshchadrapatel3448
@rameshchadrapatel3448 4 жыл бұрын
Indian brain....
@sanasama2209
@sanasama2209 5 жыл бұрын
Wow! One of the best channels!
@frzzzdtm
@frzzzdtm 5 жыл бұрын
Love ur channel,i subbed!!
@ernestweaver1153
@ernestweaver1153 3 жыл бұрын
Wow! I would have never guessed. Too Cool!
@tvoommen4688
@tvoommen4688 4 жыл бұрын
I learned this method at school in the form of a funny story in which, the king of Syracuse orders Archimedes to find out if his new gold crown is of pure gold or not. When Archimedes finds the method, he shouts victoriously : "Eureka ! "
@101jir
@101jir 4 жыл бұрын
I figured it would have to do with water displacement, but man is just drawing markers on the ship a lot simpler than what I was imagining.
@attewoode
@attewoode 4 жыл бұрын
What's really fun is doing a deadweight survey. That's where we work out the weight of the ship itself, as opposed to all the stuff loaded on it. That means going thought and weighing up all the stuff (and I mean ALL) that is not a permanent part of the ship, doing the draft readings like the video shows, then deducting the non-ship weight from the total displacement. I once spent an afternoon weighing 3 tons worth of bolts is small bins on one of these jobs. oh what fun...
@olusabaolukayode9191
@olusabaolukayode9191 3 жыл бұрын
You lecture is fantastic and absolutely correct. Thank you for your painstaking work more grease to your elbow.
@RonPiggott
@RonPiggott 2 жыл бұрын
This is brilliant.
@FillipOnDeez
@FillipOnDeez 5 жыл бұрын
Awesome video man!
@timtravasos2742
@timtravasos2742 5 жыл бұрын
Amazing information.
@cortomaltese5038
@cortomaltese5038 3 жыл бұрын
I was calculating this by hand in maritime school for bulk cargo (grain)...final exam done in 45 min. This is first mate's (primo) job by using software now days .
@aytekgungor3749
@aytekgungor3749 3 жыл бұрын
The video is quite helpful for those who are not familiar with the subject yet there are few minor setbacks to be remedied about the video as well. First, volume of the ship is not an accurate term where it should be "underwater volume of the ship". Second is about physics. As you may know volume×density results in mass not weight. To obtain weight you have to consider gravitational acceleration (g) therefore formulation would be D (Displacement of ship) v(underwater) × d(water) × g, or you just simply refer the result as displacement mass if you wish not to bother with g. Third is displacement of the ship is equal to overall weight of the ship therefore you should subtract lightweight of the ship (weight of hull, steel structural members, machinery, outfitting etc.) to yield deadweight capacity of the ship which is total cargo carrying capacity of ship including cargo, fuel oil, provisions, potable water etc. Finally you should have perhaps mentioned about block coefficient, freeboard calculations and allowable draught values of a ship.
@AmericanPride1234
@AmericanPride1234 3 жыл бұрын
I do security at a shipyard. I work nights. Not many come in on my shift but this one did and soon as they docked a crew got off to inspect everything. Saw one guy go out and take pictures of the numbers. Now, I am sure that happens daily but they do all their work during the day when I am off. 10-22-20
@onesimpleclik
@onesimpleclik 5 жыл бұрын
great content! glad i stumbled upon your channel :)
@CasualNavigation
@CasualNavigation 5 жыл бұрын
I am pleased too onesimpleclick. Glad you enjoyed it
@cagedtigersteve
@cagedtigersteve 3 жыл бұрын
I'm going to hold onto this knowledge I just learned and use it to impress someone someday.
@evansalmonsen
@evansalmonsen 5 жыл бұрын
Here before your channel blows up
@prodfauxes
@prodfauxes 5 жыл бұрын
Please never ever ever add background music or anything to your videos, your voice is the most relaxing thing on the planet
@PlainlyDifficult
@PlainlyDifficult 5 жыл бұрын
Really interesting!!
@daytonachaosofficial
@daytonachaosofficial 4 жыл бұрын
Keep up the good work man💪👍💪👍💪👍💪👍
@bishalbasnet6612
@bishalbasnet6612 5 жыл бұрын
Subscribed , quality content .
@RandomInternetDog
@RandomInternetDog 5 жыл бұрын
Now, I've done my time as a longshoreman, we used draft as a reference only. Measurement for the sale was done by other means.
@theloniousm4337
@theloniousm4337 5 жыл бұрын
Thats what I was thinking. Looking at waves lapping at 10cm high numbers and trying to decide what the level was sounds like it would give you an accurate number plus/minus 10,000 tonnes.
@dropjesijs
@dropjesijs 5 жыл бұрын
It depends on the sice of the vessel and I would put it at a multiple of 10th of tons but you are absolutely right!
@mickcoomer9714
@mickcoomer9714 5 жыл бұрын
UK Canal boats, in the days of commercial usage used to pay a toll on the amount of cargo. This was judged by the lock keeper at toll stations using a gauging stick. Basically a stick with marks on it to estimate the draft of the boat and hence its load. Instead of measuring the draft from the bank the keeper would measure it by getting on board so that his weight, off to one side would increase the apparent draft. The boat man in an attempt to equalise this would hang off the other side of the boat.
@abadatha
@abadatha 3 жыл бұрын
I saw the title, said out loud to the empty room, "via displacement. Duh." Then opened the video to make sure I was right. Thank god.
@ArifBillahOnGoogle
@ArifBillahOnGoogle 3 жыл бұрын
Before watching the video, I knew this had something to do with Archimedes principle. And only 1:22 minutes in, and it's clear to me like the sun 🌞 Alhamdulillah! Thank you for creating such an interesting video.
@lelonfurr1200
@lelonfurr1200 2 жыл бұрын
fascinating rpt good job
@aehroncarampatan6412
@aehroncarampatan6412 3 жыл бұрын
THIS IS SOO MUCH MATH!!
@djcwilso
@djcwilso 4 жыл бұрын
As a Draught Surveyor this is a nice short video with the simple principles.
@ibrahemhamdi2816
@ibrahemhamdi2816 5 жыл бұрын
nice job keep on going
@008AgentRamirez
@008AgentRamirez 4 жыл бұрын
As a Ungrad Marine Engineer, this video shows how to calculate more on the Deadweight of the ship. Meaning the weight which being use for commercial purposes. The beauty lies in lightweight too, the weight of an empty ship. The lightweight can be used to sell old ships before smelting it. FYI since the density of each cargo can be different, the engineer must design a strike balance between volume capacity and the tonnage. Note: If youre interested to sell your old ship and your ship is located near SEA, contact me and ill give you the best deal.
@qxz001
@qxz001 5 жыл бұрын
very interesting!
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