The bow wave you want to mitigate will vary depending upon the ships speed, sea state and wind. A fixed bulb can only be optimised for a single condition and in other conditions will actually be harmful. In any case, the mitigation will only be partial at best, so the benefits might be limited. For a vessel almost always travelling at a constant speed this might be acceptable. But for a vessel constantly changing speed and course, example a sailing ship or warship the benefits might simply be too small to justify the costs. For a small yacht the benefit might be very small ( the speed is low, the bow wave very small and the fuel is free and who really cares if sometimes you might go 0.1 knots faster ). An ideal bulb would be able to change it's shape to automatically adapt to the conditions, just like aircraft have swing wings. However making a 10?? ton shape shifting bulb might be way beyond practice, although perhaps this would be a good project for a naval design student somewhere.
@CasualNavigation6 жыл бұрын
Thanks David. You are right, it would be a great project for a naval architect student - and I know shipping companies would buy it if it would save fuel!
@huss036 жыл бұрын
I would have thought that a bulb that can be made to move it's position forwards and aft depending on ship speed wouldn't be beyond the limits of engineering. Wouldn't that widen the window of speeds for which the anti-phase wave could be set up?
@davidjames10686 жыл бұрын
Moving the bulb alone, might not be enough to help. It might need to change size/shape as well. The key problem would be if the wider window of speeds gives useful savings at speeds actually commonly used by the ship.
@greeneggsandsam20146 жыл бұрын
david james As I understand, these bulbous bows are used mainly on large, ocean traversing cargo vessels, which do travel at mostly constant speeds at sea. Their main speed changes happen near land, and not where they spend most of their time moving through the water, the ocean.
@matthewhemmings24646 жыл бұрын
david james you can still try to aim at an optimal condition. The cost is marginal on the scale of large boats being built, and the drag is mostly affected by high speeds, so you can bet that optimizing the bulb for medium-high speeds for bigger ships is a sure way to go.
@jakedragsknee6 жыл бұрын
I believe it’s for mating reasons with the female ships
@johnclayden16706 жыл бұрын
all ships are female ...
@jakedragsknee6 жыл бұрын
John Clayden did you just assume all boats gender
@ph897876 жыл бұрын
John Clayden Not entirely true. The Kaiser wanted some of the German ships to have male pronouns.
@Cleptro6 жыл бұрын
Jake Fejer All ships are female.
@jamesavery66716 жыл бұрын
Female's can wear strap on's though...…..
@thomasmoser73825 жыл бұрын
i really like these kind of videos, no bullshitting around, informative and in only 4 minutes i know what i wanted to know when i clicked on the video
@roonbare27693 жыл бұрын
And no annoying background music
@airzulu27333 жыл бұрын
I found it interesting . Having watched ships and this bulbous bow and not understanding what's its use . And now we know . I liken it to a form of leading edge on an aircraft wing .
@Allthingstech31086 жыл бұрын
I am teacher and I can tell you you did a great job, no flashy words but the physics was very clear.Thanks
@CasualNavigation6 жыл бұрын
Thanks Physics_rabbi. I hoped it would would come across clear.
@wholeNwon5 жыл бұрын
Don't eschew "flashy words". Learn instead.
@RideBikes_Walkplaces5 жыл бұрын
Not an English teacher I presume.
@wholeNwon5 жыл бұрын
@@CasualNavigation Clearly?
@chikennuget36345 жыл бұрын
wholeNwon when teaching a new concept it’s generally not a good idea to introduce new terms. it’s better to let the students grasp the concept before telling them how to put the concept into words
@Ernzt83 жыл бұрын
My father, who was a navy man, always told me that this behaviour was found by accident. The first was build for sonar and it created a possitive increase of speed
@davidjames10682 жыл бұрын
I read somewhere that they discovered this when they put rams on the front of early metal war ships. When a ram fell off, the ship was slower and someone went 'ah-ha!'.
@Nibby122 жыл бұрын
Your Father was right. On Warships they are Sonar domes.
@SakuyalzayoiTheMaid Жыл бұрын
i immediately started chanting sonar when the video asked what the bulge was for, only now i learned it also on very specific occasions and circumstances helps with the waves.
@pizzlerot2730 Жыл бұрын
@@Nibby12sorry but no. The bulbous bow predates sonar by quite a bit. The reason that it's used for sonar on warships is simply that the location of the bulbous bow is exactly where you'd need to put a forward-sweeping sonar setup, and since they already had that protrusion, they just put it inside of the bulbous bow.
@pizzlerot2730 Жыл бұрын
Now you can tell your dad that it's actually the opposite, and he can learn something new 👍
@jeanclermont41954 жыл бұрын
“Is that a bulbous bow on your hull or are you happy to see me?”
@aberamagold75094 жыл бұрын
Sorry I was just waving.
@dattatreya44484 жыл бұрын
?
@mrsauce93074 жыл бұрын
Lmfaoo
@robertpradella65504 жыл бұрын
Lol
@jduff594 жыл бұрын
I just like the word "BULBOUS".
@andremacedo84636 жыл бұрын
I love how the internet have all the answers to those random questions we ask ourselves about lol
@moritzwegge68355 жыл бұрын
Yeah!
@doughesson5 жыл бұрын
Look up cow aerodynamics some time. You won't regret it.
@NoShame225 жыл бұрын
And all the questions we don’t ask ourselves
@lukeaabbcc3135 жыл бұрын
@@doughesson down the rabbit hole i go lol
@DJLsbVapes5 жыл бұрын
Canceling the wave out, also reduces turbulence and cavitation on the rear propulsion
@bendover26844 жыл бұрын
Thanks i Just wanted a short 0answer and Not 4 Minutes of blabla
@isonbogosian30804 жыл бұрын
Yoooooooo
@davidjames10684 жыл бұрын
Really? For a typical freighter i would have thought that any effect would be dissipated long before it reached the stern of the ship. And no freighter should ever be using it's propellers close to cavitation speed.
@mmonroe82533 жыл бұрын
There you go! It took you 10 seconds to explain what the video tried to do in 4+ minutes Thank you!
@bobthebuilder29223 жыл бұрын
Yes
@WheelEstate6 жыл бұрын
I consider anyone with a British accent to be an expert.
@CasualNavigation6 жыл бұрын
Thanks Manoj. As long as we all keep learning, that's the main thing
@nearestyoutube6 жыл бұрын
Mr Bean?
@mog8826 жыл бұрын
Manoj Philip They feel that way as well.
@MrMunchbunch836 жыл бұрын
I'm British with a British accent and I'm an expert in fuck all!!!
@bigbrother95316 жыл бұрын
Not me. All I gotta say is, name a ship disaster, then ask, who built her.
@bobconklin71593 жыл бұрын
I was part of the commissioning crew of the USS Ronald Reagan CVN 76. We had tee shirts made that read, “ I’m Not Fat. It’s My Bulbous Bow.”
@bollockjohnson37063 жыл бұрын
*I* too was on the commissioning crew of the USS Ronald Reagan CVN 76 and I am calling you out on your bovine excrement.
@TheGnarlyPigeon3 жыл бұрын
@@bollockjohnson3706 lol
@jtseafarer68713 жыл бұрын
I was also one of the dry dock crew of Ms Rotterdam I have pictures of bulbuos bow but on that time I don't what is the used of that bulb
@i_know_youre_right_but2 жыл бұрын
Shite yank banter
@Coowallsky6 ай бұрын
@@i_know_youre_right_but Seethe. Cope.
@Srgfowler3 жыл бұрын
Never searched for anything revolving ships. But I still clicked
@MeteoricStoneofSouls3 жыл бұрын
That's because Google knows what you want to see before you do.
@crs23856 жыл бұрын
0:42 ''Let's consider this vessel'' Me: TITANIC!
@notesl55766 жыл бұрын
CRS Ikr it's clearly her..
@z09016 жыл бұрын
It's so easy to see
@dylanhultman39226 жыл бұрын
CRS It could of easily been the Olympic. The Olympic classes all look the same.
@usmc59776 жыл бұрын
Me too hahahhh
@prnothall93026 жыл бұрын
Dylan Hultman correctly, could HAVE been, or could’ve been. Could “Of “ been, is non- sensical. Just sayin’.
@danmcclaren54366 жыл бұрын
That’s actually pretty genius. “Hey let’s make a second set of waves ahead of the first that will cancel each other out”
@DrWhom5 жыл бұрын
Is the effectiveness a function of speed?
@fieldmarshal72985 жыл бұрын
@@DrWhom yes
@RyanMcIntyre4 жыл бұрын
Same principle behind noise cancelation
@hyonker21344 жыл бұрын
I used the wave to destroy the wave
@DrDeuteron3 жыл бұрын
bow's passive cancelation. Not to be confused with Bose active cancelation. also it only has to cancel the wave along the hull, I mean somewhere out there, there might be a bigger wake.
@mcfly76134 жыл бұрын
A lot of this I already knew because I was a US Navy sailor but I’m still learning a lot from these videos, I’m glad I bumped into this channel. Well done.
@vulture38743 жыл бұрын
I'm going to use the information in this video at parties. As an icebreaker.
@felixiathegoat32593 жыл бұрын
Made me laugh out loud
@cindyzins66283 жыл бұрын
Me too! (LOL, I mean)
@weppwebb28853 жыл бұрын
Ironically icebreakers do not use bulbous bows as far as I know. Might want to try a spoonshaped bow for maximum effects. xD
@johnpatz83953 жыл бұрын
That’s freaking horrible! I LOVE IT!
@abhi23493 жыл бұрын
Lol.. I was already thinking about it !!😂😂
@sammynicholas5 жыл бұрын
There is actually one more very important reason for the bulbous bow along with the wave canceling effect! A ship which moves considerably slow without the bulbous bow will create 70% more air bubbles than one with a bulbous bow, as well as the lack of wave counteracting effect, moreover the bubbles created by traditional bow gets push to the bottom of the hull which causes a loss of water pressure underneath the hull inturns less force pushing against hull, and decrease buoyancy, therefore the ship will sit lower in the water and create more drag and less hullage capability. on the other hand ships with bulbous bow, when the bow pushes against the water, it creates fewer air bubbles and the bubbles are mostly displaced to the side of hull, therefore, the hull will maintain its water displacement, less drag and what's even better is the air bubbles get push to the side of the hull making it less drag from the side of the hull resulting better fuel economy!
@aberamagold75094 жыл бұрын
Did you just make that up? 😃 JK it was a very informative comment.
@chsemaphor4 жыл бұрын
Lol
@sammynicholas4 жыл бұрын
@@aberamagold7509In fact I tried it out on a few scaled models and in CAD fluid test and both supports this...
@robbiejosh60823 жыл бұрын
I don’t believe you
@BobSmith-cb5xr2 жыл бұрын
Sounds some some brilliant mark Twain shit I like to make up. Sounds good, but is it really true?
@killerta876 жыл бұрын
You know I've always wondered about the bump on the bow of a ship but never seemed to research it honestly. Stumbled across this video and honestly learned about it ha! Simplistic explanation and well laid out video makes it super easy to watch. Well done sir
@CasualNavigation6 жыл бұрын
Thanks killerta87
@williamthethespian6 жыл бұрын
Excellent explanation. Thank you.
@CasualNavigation6 жыл бұрын
Thanks William! Glad you liked it.
@adamdickinson28943 жыл бұрын
1:37 "If we think back to mathematics." Me: * Vietnam-style flashbacks begin *
@tophan51463 жыл бұрын
😂
@StratMatt7774 жыл бұрын
Now I understand what the hull is going on! Thank you!
@kindnessmattersmost9 ай бұрын
Clever😂
@boatman2223454 жыл бұрын
Great explanation! I used to provide water taxi service to ship's agents servicing the cruise ship industry here in Maine. Twenty-five years ago these cruise ships generated huge waves in their wake. Today a 1,000' cruise ship produces a wake smaller than that produced by a 36' lobster boat largely due to these bulbs. And speaking of lobster boats, a local fisherman took a clue from the cruise ship industry and added a fiberglass bulb to the bow of his 45' boat. I've photographed it several times while the boat was tied up to the dock but have never had the chance to ask the owner if it has worked to reduce fuel consumption.
@scottboardman80706 жыл бұрын
Wonderful explanation, in 4mins I feel like a smarter man!
@CasualNavigation6 жыл бұрын
Thanks Scott. Glad you liked it.
@patagualianmostly74373 жыл бұрын
Is that not the whole reason for You Tube existing? Just a shame more don't use it.... after watching those of Jay Leno. Dear-oh-Dear. The billions wasted on education. It could actually fund a social health care programme........
@Dirckaw4 жыл бұрын
Things that we spend whole day in studying, learnt in 4 minutes. Thanks!
@Robert-gg7ck4 жыл бұрын
Wanted to shout out the way you remind users to like videos without directly stating it, I and im sure many others appreciate your indirect approach
@Rincypoopoo5 жыл бұрын
Brilliant. Short, neat , clear and interesting. Thank you.
@TheRealBoroNut5 жыл бұрын
Nonsense. It was designed by Airfix so you have somewhere to hold the model when you paint it, as any fule kno.
@honeydew50225 жыл бұрын
Haha
@NPCSN5 жыл бұрын
🤣😂
@beepthemeep125 жыл бұрын
Lmao
@gormauslander4 жыл бұрын
And then the shipbuilders were like "oh heck, our ship isn't accurate to the model" and changed it
@kartikkalia014 жыл бұрын
Thanks
@JackMayhoffer3 жыл бұрын
I woke up with a bulbous bow this morning.
@fellowcomrade73573 жыл бұрын
Nice
@peterrabbit29653 жыл бұрын
Nailed it
@woofowl24083 жыл бұрын
I hope you weren't put in a dry dock.
@manxman80083 жыл бұрын
what was her name?
@fangospucklovesveena4643 жыл бұрын
@@woofowl2408 wonder what that ol' Night Mate wuz doin'???
@braddixon33385 жыл бұрын
I've seen those many times and always wondered what they were for. I've heard anywhere from a forward weight to help hold the bow down, to breaking the waves before the bow has to hit them, but this is the first time I've heard about the destructive interference design, how cool!
@potawatomi100 Жыл бұрын
Outstanding explanation. I had to watch it again to refresh my memory. Well done!
@jduff594 жыл бұрын
I've lived this long not knowing what the bulbous bow was for, nor did I know why ships are painted red below the water line, and I've learned both in one night. Pure KZbin genius! Outstanding video, and not even one comment mentioning Ron Jeremy from the Peanut Gallery.!
@alecmagill53375 жыл бұрын
“This first vessel” is clearly the Titantic
@irongoatrocky23434 жыл бұрын
Full Speed Ahead!
@patagualianmostly74373 жыл бұрын
Or...perhaps...one of her sister ships...which gave decades of service. Mmm?
@angelvillegas96043 жыл бұрын
@@patagualianmostly7437 Titanic
@ICUinthedark3 жыл бұрын
@@angelvillegas9604 nope not Titanic, there is no Jack and Kate on the top deck on the front...
@angelvillegas96043 жыл бұрын
@@ICUinthedark Jack's not real
@SinominStudios5 жыл бұрын
When I was younger, my dad told me it was for ramming sharks
@iaffrayliillii7045 жыл бұрын
Lmao that made me laugh
@hiddenname89535 жыл бұрын
Happy younger life...
@d3m3n70r5 жыл бұрын
Right. But it renders useless, when they already began to form a sharknado.
@certaindiaster595 жыл бұрын
d3m3n70r lmao! Not the f-in sharknado!
@certaindiaster595 жыл бұрын
It started off with only female sharks but eventually it changed to anything in the water and nothing was safe from then on...
@bikelifepov37555 жыл бұрын
I love when KZbin answers all my questions at 2am.
@AngelVazquez-xh1dh4 жыл бұрын
I went on exchange about 10 years ago... Lived a while in Finland... Traveled in Silja Line and Tallink, to Tallin and Stockholm... And also visited the Vasa Museum... I loved ships but never imagined I would end up studying naval Architecture as now ❤️
@anthonyo.thector324 жыл бұрын
This video fulfills my daily quota for new things I learn. Thanks.
@ROK-dn5rm4 жыл бұрын
I was told that they were small rooms for radar sensors or something, I don't remember where I learnt that but this makes a whole lot more sense, you explained it very clearly.
@zo5679 Жыл бұрын
It true for the Arleigh Burke Class Destroyer and other military ship
@Malisti045 жыл бұрын
All this time I thought it was for crushing ice. I learnt something new today. Thank you
@DeathByLego3 жыл бұрын
There are some for crushing Ice! The have bigger, angled fronts to push the ships above the ice, then the weight breaks the ice!
@thatdude101ish3 жыл бұрын
@@DeathByLego dam! that was what i was going to say, ice breakers are very costly to run due to the flat hulls and the drag.
@DeathByLego3 жыл бұрын
@@thatdude101ish have you seen the biggest Russian one?! It’s an absolute monster.
@AussieDad795 жыл бұрын
I had no idea I needed to know this but I’m glad I now do!!
@frazerguest28644 жыл бұрын
Perfect video. Short, sweet, to the point with no waffle or bullshit. Thank you
@dobermanpac10644 жыл бұрын
Coming from a family of sailors for over 5 generations, I’m no expert, but I do know this.., The configurations belong the water line are the most critical when dealing with speed, handling and fuel/wind economy. It’s all about the math, not looks. Fabulous video.
@Stones_Throw5 жыл бұрын
I've just assumed forever that it was to add buoyancy to an area of the hull with the least. A great explanation.
@jalaluddinmorris29784 жыл бұрын
... and by adding buoyancy it helps a ship do what it is meant to do - namely carry things.
@Allthingstech31086 жыл бұрын
This is called "destructive interference"
@Allthingstech31086 жыл бұрын
jon doe The phenomenon is called destructive interference it is an important phenomenon in the physics of waves.It is taught at 1 year college and senior classes in schools
@Perifroog6 жыл бұрын
jon doe Thats what it's called itself, but the effect it has is callef destructive interference
@Allthingstech31086 жыл бұрын
jon doe correction "gone to" instead of went to
@lelandlewis72075 жыл бұрын
Sounds like Tump's foreign policies. 😀
@wavehaven16 жыл бұрын
The bulbs were from WW2 submarines for their sonars, it just worked out for great unexpected advantages other than for sonars. Then so, the bulb design went to ship bows....thanks to the WW2 submarine.
@Shloomy_Shloms6 жыл бұрын
wave haven A lot of ships in at least the US Navy still use the bulbous bow to house their sonar
@CasualNavigation6 жыл бұрын
A lot of merchant ships do to. It is a nice empty space right in the bow so is ideal for sonar
@DerSchwantz6 жыл бұрын
@@CasualNavigation are you crazy or do you not even know merchant vessels have no sonar. The bulb is a void with nothing in it. In some vessels it is common to the forepeak..commercial ships have a transducer for the depth sounder. It's a little bigger than a hockey puck and sits up forward.
@NPCSN5 жыл бұрын
I was actually wondering this exact thing (about subs and sonar) I was wondering if it was an accidental discovery. 😁 good stuff. :)
@mayuri41845 жыл бұрын
The Yamato had it too IIRC.
@pgVeritas3 жыл бұрын
This is great thank you. I love learning about anything! I used to go out with a girl whose father was a naval architect. He made millions because he created a piece of software that predicted the rise in water levels. He wrote it in C+ years ago. He was actually an arse outside of that. When I started seeing her he Contacted my university to see if I really worked their and completed a PhD there. As I was really well known, and this is a very specialist small university, which only has PhDs or Masters, HR contacted me, laughing about it. He pretended that his company was offering me a job, so he broke every privacy rule around. He thought he was the only person in the world with a PhD from a world top ranked university.
@anthonyboyce88443 жыл бұрын
You got a PhD?is English not your first language?
@Chimp_No_15 жыл бұрын
Your videos are always compelling. Thanks.
@HarpaxA3 жыл бұрын
I would have guessed for two reason : 1. It's act like a bumper, to prevent the hull got damaged if it hit something 2. As sacrificial part, so it get eroded faster by the water, than the original bow section Thanks that I found this video 😅
@loritsi2 жыл бұрын
i always thought it was for ramming in military applications
@jimtownsend78993 жыл бұрын
When I was young, I thought it was a sonar dome. Then I realized its true purpose. The first ship to have the bulbous bow was the S.S. Jimmy Durante.
@ember93612 жыл бұрын
Hm like a beluga whale :)
@b0bbuffet6 жыл бұрын
SILJA LINE!!!!🇫🇮🇫🇮🇫🇮🇫🇮 Suomi
@veewee48265 жыл бұрын
PERKELE TORILLE SAATANA SILJA GALAXY
@kaiusylander13205 жыл бұрын
SUOMI PERKELE
@seal72165 жыл бұрын
Silja line o paras👍👍
@AngelVazquez-xh1dh4 жыл бұрын
I navigated in one of those ❤️
@Novel_Poe4 жыл бұрын
Have you Finnished
@jkl5425 жыл бұрын
I really appreciate how you get right to the point from the start.
@pool-io43603 жыл бұрын
I always assumed it was to protect the ship from a front impact. But I never had a real answer and didn't even know what they where called. This makes alot more sence. Thank you!
@TheFlyingCougar5 жыл бұрын
KZbin: Hey you, we see you like to watch sitcom clips and funny animal videos. Now listen to this British guy explain the mechanics of cruise ships. Me: *ok*
@camkai19984 жыл бұрын
I’m here a year after 😂😂
@andrewryan44173 жыл бұрын
You too?
@andrewpaulhart5 жыл бұрын
Subscribed to your channel recently. Really interesting to learn new things about an area that I’ve not really thought about at all before. Thanks
@YTomi265 жыл бұрын
It sounds a bit weird to call it drag because we usually call it resistance. But i think it's to make the explanation understandable to those who didn't know Naval Architect. Great job!
@markgadsby5568 Жыл бұрын
Resistance is normally a force directly opposing something whereas drag is friction along the sides
@samipkapadia19952 жыл бұрын
This is the first time i came across such an easy explanation. Thank you so much...
@Edsrandomthingschannel92953 жыл бұрын
Cool and to the point video! I knew the bulbous bow helped ships sail more smoothly but until now didn't know the principle behind it. 🚢
@Espanyol_Espaghetti6 жыл бұрын
To differentiate male ships from females..
@thickschmeat75606 жыл бұрын
there are only female ships cause if a male ship gets penetrated. Its gay
@ianwinfield9296 жыл бұрын
There’s only two genders
@MrEazyE3575 жыл бұрын
All ships are female.
@janchocruz13785 жыл бұрын
@@MrEazyE357 why?
@SuperKiko1125 жыл бұрын
And gay ships ? How to differentiate them ?
@gb57765 жыл бұрын
It’s used for making baby tug boats that will someday grow up to be ships.
@alfredmorency82963 жыл бұрын
Tugs never get anywhere, they just hang-around their mother's harbor. you have to cleave some water to be a ship.
@rosethefirechieftess16832 жыл бұрын
🤣
@NoaV25 жыл бұрын
Thanks! I learn so much from your videos! Keep it up!
@MarkSmithSa4 жыл бұрын
It also helps dampen pitching, albeit slightly. The sonar dome of T22 batch III frigates, which is a larger version of a bulbous bow, reduced slamming noticeably.
@jamofbob7154 жыл бұрын
Videos like this are why I love KZbin
@abdulwaheedsayed52463 жыл бұрын
We can add one more function to the bulbous bow: to get stuck inside sand and prevent ship from moving
@theotherside9315 жыл бұрын
*I have wondered this for years. I suspected it had to do with waves but how exactly I didn't know. Thanks for making this video.*
@killingfields14245 жыл бұрын
Its there for the purpose of reducing drag and streamlining hydrodynamics. Plus it can alsi be used to RAM the hell those megalodon blocking the way
@rw28905 жыл бұрын
I love your videos, finally something to learn on the internet
@ACELog3 жыл бұрын
Thanks for a concise informative video! First time in my 67 years I've now learnt this. As a former engineer, I like to translate things in to my way of thinking: "Bulbous Bow generates an antiphase waveform (great pun opportunity!) that cacels the normal bow wave".
@davidev44805 жыл бұрын
wow EXCELLENT video. I am now your newest subscriber.
@davidev44805 жыл бұрын
I also saw ur "why is it called a "bridge" video. Great stuff. Now just gotta catch up with ur other work
@davidev44805 жыл бұрын
I also saw ur "why is it called a "bridge" video. Great stuff. Now just gotta catch up with ur other work
@elj69645 жыл бұрын
I am always thinking that it serves as a water break. Thank you for educating me
@justSTUMBLEDupon5 жыл бұрын
I learned something new today! The more you know 💫
@berlinupnorth9824 жыл бұрын
I worked building Navy ships in Bath, Maine. Military ships often have their sonar in these forward bulbous bows to locate them far away from the ships internal noise.
@G-TagLuke4 жыл бұрын
Love your videos! short and to the point !great content
@bendepeel78465 жыл бұрын
Just popped up in my suggestions thumbs up though!! You piqued my interest and now I know some thing I never knew that will probably serve me no purpose but I'll pull out one day like yah know what that thing does and explain
@RyanZNO3 жыл бұрын
I live in the middle of the desert, why am I watching this at 1am...
@nxtchpforme91543 жыл бұрын
Happy life??
@whenibecamethesun..87596 жыл бұрын
You make it easy to understand..that is a very difficult thing to do...thanks
@CasualNavigation6 жыл бұрын
Thanks When I became the sun. Glad it was understandable.
@blujay20843 жыл бұрын
Nice video. Clear and concise. Something I always wondered about. Thanks for posting.
@tongfoocheong82542 жыл бұрын
I finally see a practical application of the sine and cosine waves taught in school years ago.
@zachlafleur66516 жыл бұрын
Nice job demonstrating this on an Olympic Class Liner from the White Star Line! If they only had this technology and knowledge over a hundred years ago that they do now (that and also safety equipment)?
@CasualNavigation6 жыл бұрын
Thanks Zach. Glad you liked it!
@dylanhultman39226 жыл бұрын
Zach LaFleur My first thought was “Is this the titanic?”
@ph897876 жыл бұрын
In which case. If Thomas Andrews can get the length of the bulb correct. Not only would Olympic, Titanic and Britannic be even more fuel efficient. The reduction of drag could raise their top speed by a few knots. Whether it would be as fast as the Lusitania and Mauritania, i don't know. But it would be close. Hell it would be even a great selling point for passengers.
@rimmipeepsicles18705 жыл бұрын
@@ph89787 'cause what would passengers care about? Mostly luxury and speed. They would even retain the Blue Riband if they had bulbous bows for how many years, probably up to the inter-war period.
@vk2ig5 жыл бұрын
The increase in speed due to the reduced drag would only mean the RMS Titanic would've hit the iceberg at a higher speed and possibly done more damage so it might've sunk faster.
@potawatomi1006 жыл бұрын
Really well done.
@CasualNavigation6 жыл бұрын
Thanks Reme
@craigkaschan48226 жыл бұрын
Yes always wondered what they were all about Thankyou
@CasualNavigation6 жыл бұрын
Thanks Craig. Glad to help out.
@jacebrogden34903 жыл бұрын
KZbin recommending answers to a question I didn’t know I needed the answer to
@grimbles394 жыл бұрын
☑ no obnoxious music ☑ no cheesy jokes ☑ no trying to extend the video to 10 mins ☑ no extended history lesson ☑ no off-topics ☑ no sponsors ☑ no long intros
@thepsychosupersonicdiscopu40963 жыл бұрын
I was brought here because of the 3 seals chillin on the bulbous bow.
@popedassalxvi53753 жыл бұрын
I guess what it was for after watching the clip at the start, feeling very smart right now
@SPE4RHE4DS6 жыл бұрын
I've Actually seen Tallink or Silja Galaxy in real life when I visited Latvia, Beautiful ship.
@Janfey4 жыл бұрын
I've been on it many times.
@ZucchiniSlayer5 жыл бұрын
wish I wouldve found this channel sooner, very informative. Great Job.
@tedmulthauf74343 жыл бұрын
Best explanation of this I have ever seen.
@Dawgs2415 жыл бұрын
I'm trying to think, how can I use the information from this video to develop a pickup line at the club.
@rudlu_5 жыл бұрын
Did you found out yet ? I'm interested
@Ernoskij5 жыл бұрын
0:22 "looking at these different pictures, you can see the ships are all different sizes" he says while showing only the very tip of the ship with no reference point in the picture. It's not possible to judge the actual size of the ship solely from those pictures :)
@NPCSN5 жыл бұрын
🤣😂 I was thinking the same thing. Like: am I supposed to do the calculus and physics on the water amd guess the speed and extrapolate the size?... Uh... No... Just zoom out. 🤣😂 besides, i dont know how to do that crap anyways. Lmao
@hardanheavy3 жыл бұрын
Of course it is. If you don't see it, you don't see it I guess ;)
@reifukaiyukikaze6 жыл бұрын
Keep up....your channel is great!
@CasualNavigation6 жыл бұрын
Thanks reifukaiyukikaze!
@macnuggets8874 жыл бұрын
0:11 is a Swedish/Estionian company and it cruises from Stockholm to Tallin.
@pihlajafox2 жыл бұрын
Also Finland-Eesti and Finland-Sweden
@Эбэрёнэи2 жыл бұрын
i dont know how i got here but god this channel is good
@s.eashwar48945 жыл бұрын
0:02 How many have travelled the Silja Line 🙌 Hit like
@drServitis6 жыл бұрын
I ALSO HAVE A 'BULBOUS BOW.'
@itsohaya40964 жыл бұрын
I didn't know what that was, nor that this was a ship video, so here I was staring at the thumbnail having an existential crisis as my brain tries to dissect a single image.
@TheKurtsPlaceChannel4 жыл бұрын
Great video. Thanks for posting this. Have a nice day.
@tweaker19685 жыл бұрын
Thanks for this ... very informative!
@stevewaclo1675 жыл бұрын
I almost bailed out at “...lets think back to mathematics...” but pleased I stuck it out! 😀 Excellent explanation and it seems you have attracted quite a number of intelligent and observant comments as well. 👍👍👍
@vancelandry83145 жыл бұрын
“As you can see, they’re all different sizes” that’s what she said.
@JorgeGonzalez-ut3pm4 жыл бұрын
Lol
@jduff594 жыл бұрын
At least it's not called a "bulbous member".
@boataxe46053 жыл бұрын
I was about to give you a like, but I saw that you have 69 so I’ll leave it alone.
@WineScrounger6 жыл бұрын
Funny thing, I’d always wondered about this.
@davidmeare96163 жыл бұрын
My understanding of this is that this mathematical explanation and then later development of the principles arose from the discovery that adding ramming bows to warships about a century ago had the surprising effect of increasing their speed capability.