Engine Order Telegraph And Bell Book On A Cargo Ship | Life At Sea
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- The Engine Order Telegraph (EOT) is used to control the main engine's speed in RPM's. Orders on the telegraph are called bells since the old fashioned telegraphs would ring a bell down to the engine room for the engineers to see and then manually adjust the speed of the engine (like the scenes in the movie Titanic for example). Modern ship's telegraphs have direct control to the main engine from the bridge with the option of having the engineers take control and to answer bells from the bridge. All engine orders are logged and recored either automatically using a bell logger, or by hand in the bell book as seen in this video. Engine orders are given for both ahead and astern bells and are commonly used when approaching ports or while in the channel under the direction of the pilot.
#telegraph #bellbook #lifeatsea
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Interesting as always. But what's "Ahead Nav Full"? Is it ever used?
24.5 knots must use a lot of fuel! Great question, Homo Lethergicus.
@@mitchellbarnow1709 Yes, enormous amounts. I'm wondering if it might be the ship's max speed as measured during its sea trials, or something like that.
@@WeddingVegetables That is a definite possibility! Thank you for your input.
@@mitchellbarnow1709 Hopefully Bryan sees and replies to this or to the other, similar, question. :)
There is something neat about still having the manual log. It's a throwback to days of yore.
Is the handle for controlling it a modern version of what was seen on ships such as the original Queen Mary and Titanic?
Thanks for the interesting inside information, Bryan! But where does the "Ahead Nav Full" fit in to your check marks? Maybe it is a check mark with three slashes?
Probably the equivalent bells to USN Ahead Flank Speed, and permissible to run at maximum speed in open waters.
UK and US Bells Compared:
Ahead Nav Full - Ahead Flank
Full Ahead - Ahead Full
Half Ahead - Ahead Standard
Slow Ahead - Ahead 2/3s
Dead Slow Ahead - Ahead 1/3s
Stop
Dead Slow Astern - Back 1/3s
Slow Astern - Back 2/3s
Half Astern - Back Full
Full Astern - Back Emergency
@@Brecconable Thank you so much for this explanation
Great info, why exactly are these sorts if things recorded and kept and recorded? Is it for "in case something happens" purposes?
Definitely.
Great stuff, Bryan. As always. I particularly enjoy the 2+ hour transits. Very soothing. Thanks.
interesting. If it were up to me, I would change the bell books symbols to be more intuative. I chang3e the symbol to "up arrow" for "ahead" and "down arrow" for "astern".
On ships, you log it. If you don't it's hard to CYA. And this works the same if you screw something up. The log is a record.
As a landlubber I love EOTs. Thanks for posting.
Crazy how slow those big diesels move.. 28 rpms but with pistons the size of school busses that’s a lot of mass
Must be hard to find a replacement ribbon for that dot matrix bell log printer !!! Time to upgrade it to solid state drive.
So, everyone on the ship is responsible for those logs???
"DEAD SLOW"= 6 knt- high enough speed for a vessel of this size.
They don't enter ports under power, but carefully tugged. 6 knots is the slowest speed at which ships this size can actually steer.
@@Bob.martens yes I know.
Thank You!🖐😊
I am driving a river vessel, about 100 meters, which independently passes the locks and it also has the same speed on one machine at low speed. It has three of them.
thank you for all pratical information Sir
Great video, please upload more stuff like these.
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good information thanks 👍👍
Thanks Brian
👍💯👍
Now I know which ship you are on I can track you on my PC. Adds another dimension to your vlog! It must be a bore having to note down each telegraph order when you are docking or departing! Nice if there is a cadet availeble but in my experience that is usually not the case. Repair in next port?⚓
What the point of the log?
Courts of Inquiry.
@@barneymm2204 forgive me, but I not familiar with the industry. But why would anyone care how many times the engine is put in gear and throttle position?
@@michaelmanley9132 A court of inquiry would want to know what the vessels were doing before, during and after an incident at sea (say a collision).
@@barneymm2204 gotcha