How To Read Ship's Drafts | Life At Sea
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- Опубліковано 20 бер 2021
- This is a quick explanation and demonstration of reading the drafts of a ship. A ship's draft is the vertical measurement from the waterline to the bottom of the keel. The draft tells us how shallow of water we can sail in as well as important stability and ship handling characteristics.
#shipdraft #cargoship #lifeatsea
Thanks Bryan. I’m a retired Army guy but I recently move to Tacoma WA and watching those ships come to unload and load has been really interesting. I enjoy all the tours
Thanks glad you enjoy. I’m currently in Tacoma Washington aboard a Matson ship that shuttles cargo to Alaska…, beautiful state you live in and Alaska is amazing!
Another informative video, please keep them coming Bryan.
Thank you for sharing the knowledge
EXCELENT VIDEO!
Thanks for sharing.
Ah what memories. Especially when we had to do it out at sea. 🤣
Thanks mate
Nice video Bryan (as usual), simple and straight to the point. Quick question, if the draft is (for example) 11.00M, that obviously means there is 11M of hull under the waterline. In that situation, what would be the minimum water depth that would be required? In other words, what's the leeway between draft and water depth? Thanks in advance :-)
Believe it or not, but this company has an under keel clearance requirement of only 1 meter! This would only be allowed though in channels at slow speeds though. The faster ships move, the more they squat into the water and the more stress they put on the engine components at these shallow depths. Thanks for the kind words!
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Great vid - up to your usual high standards.
So cargo ships are typically down at the stern? Do you happen to know why? Better fuel economy? Less impact on the ship and cargo as it moves through relatively high seas? Or is it just that being down at the bow is bad, and this avoids that?
I had a friend in the merchant marine who supervised onloading/offloading on big tankers (so involved with ship trim) and he never mentioned this to me - and I'm interested in ship design.
BTW/FWIW, he medically retired out, woke up in a hospital because a cable had parted when he was doing his job on the deck, one strand passed through his face. I never realized how dangerous the job was.
The ships were designed to be down by the stern and they typically ride better that way in seas. Our company has lately been trying to have us down by the bow which they are now figuring increases fuel economy, but the ship doesn’t ride as well that way. I’m not a naval architect so I’m not entirely sure how that’s all figured out, but perhaps new builds will be designed to be down by the bow if that is in fact making them more efficient.
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Thanks, I have always wondered what the numbers exactly mean. But how do you know how deep the water is a dock?
We have navigation charts that show us the soundings (depths) of the water including in the channel at the dock. We also have a depth sounder that uses sound waves and bounces them off the bottom to give us depth readings.
Good video bro, you are on which post on ship
Do you mean which watch? In this video I was in charge of the 4-8 watch
First!
Next video how to use Maneuvering Board and other navigation aids
I will add that to my list, thanks
@@BryanBoyle thank you, and I like your Guide to Maritime terms, keep up the good work and keep safe 🙌😊
Capt. Can you make a proper video of reading the draft and its calculation
Which place bro 🙏🏾 please reply
This was in Charleston, SC
Lots of rust.
Interesting videos. IMO, walking around with camera bouncing is distracting and for some of us makes video unwatchable.
Thanks for your feedback. I try to record using a stabilizer I own, but didn’t have it available for this video
Thank you for sharing the knowledge