Typically, the safety contour is established by considering the lowest astronomical tide (LAT) or mean low water springs (MLWS). Mean Low Water Springs (MLWS) represents the average lowest water level that occurs during spring tides over an extended period. Spring tides occur when the sun and moon are aligned, causing higher high tides and lower low tides. Using MLWS as a reference provides a conservative approach to ensure that the charted depths are sufficient for navigation under most tidal conditions. So, in the context of determining the safety contour, you would subtract the anticipated tidal range from the charted depths based on MLWS or a similar reference level to ensure safe navigation during varying tidal conditions.
Great question! Values for roll and pitch can be obtained using various onboard systems or equipment designed to monitor the ship's movements. Here are some methods: Onboard Sensors (IMU Systems): Modern ships are equipped with Inertial Measurement Units (IMUs) or similar sensors that constantly monitor the ship’s movements, including roll and pitch. These sensors provide real-time data, which can be used for navigation and dynamic draft calculations. Electronic Chart Display and Information System (ECDIS): Some ECDIS systems have integrated functionalities that provide roll and pitch data, particularly for more advanced navigational systems. Manual Measurement: On smaller or less technologically equipped vessels, roll and pitch can sometimes be estimated visually or measured using a clinometer, though this is less precise. Ship Stability Software: Many vessels use onboard stability software that calculates roll and pitch based on loading conditions, weather data, and ship motion information. This software can provide estimated values for roll and pitch to adjust the dynamic draft. Roll and pitch affect the distribution of the ship's weight and thus the draft, particularly at the bow or stern during pitching, or on the sides during rolling. The dynamic draft may increase during extreme roll or pitch. If your ship is equipped with advanced systems or software, the values are readily available for calculating dynamic draft more accurately.
Thank you for watching and for your kind words. Unfortunately, I'm not onboard at the moment, so I don't have the table on hand. However, I'll reach out to some of my colleagues who are currently onboard to see if they can provide me with a copy. Once I receive it, I'll be happy to send it to you. Thanks for your understanding!
@@nauticalacademy001 I apologize, I just wanted to remind that if there is an opportunity, please share the table for calculating the safety settings. For educational purposes I would like to practice on it and check my calculations that I did manually, this will help me. Thanks in advance!
@@YuriiYasenchuk-bt7gp Unfortunately, I don't have a soft copy of the Excel sheet since I wasn't onboard at the time. However, I will try to reach out to some of my colleagues and see if they can provide it. I'll keep you posted!
Unfortunately, I don't have a soft copy of the Excel sheet since I wasn't onboard at the time. However, I will try to reach out to some of my colleagues and see if they can provide it. I'll keep you posted!
Thank you so much for your kind words! I'm glad you found the video informative. Unfortunately, I don't have a soft copy of the Excel sheet since I wasn't onboard at the time. However, I will try to reach out to some of my colleagues and see if they can provide it. I'll keep you posted!
@@yevgeniysterenok3337 Thank you for the comment. I have made a separate video on how to calculate the squat. Kindly check this link: ua-cam.com/video/6YmnkoMBfFQ/v-deo.html
Very helpful video mate. Thanks
You are welcome.
thankyou
Welcome.
thank you sir. helps a lot
You're welcome.
Thanks sir
Welcome
Your explaination is so clear, thank you very much for your video
You are welcome. Glad it was helpful!
How to calculate the capacity of spaces available for loading cargo? Can you make a video about jt? If so, it would be grateful. Thanks.
Yes I can. Thank you for the comment.
Great content, thank you
Welcome.
mate your content is so helpful.
Hello could you please make videos on TRS (dangerous semi circle etc),how to resolved cocked hat.Thanks
Thank you. I will make a video about TRS.
Thanks for the explanation. Please, add a sample Excel sheet for the calculations
Thanks for your feedback! I'll try to add a sample Excel sheet for the calculations in the future.
Good day.When we calculate safety depth which tide we minus MLW or MHW?
Typically, the safety contour is established by considering the lowest astronomical tide (LAT) or mean low water springs (MLWS).
Mean Low Water Springs (MLWS) represents the average lowest water level that occurs during spring tides over an extended period. Spring tides occur when the sun and moon are aligned, causing higher high tides and lower low tides. Using MLWS as a reference provides a conservative approach to ensure that the charted depths are sufficient for navigation under most tidal conditions.
So, in the context of determining the safety contour, you would subtract the anticipated tidal range from the charted depths based on MLWS or a similar reference level to ensure safe navigation during varying tidal conditions.
@@nauticalacademy001It means that when we find Safety depth/contour=Dynamic draft + Catzoc+UKC-HoT(MLWS) I'm I right?
How do u get values for roll,pitch while calculating dynamic draft
Great question! Values for roll and pitch can be obtained using various onboard systems or equipment designed to monitor the ship's movements. Here are some methods:
Onboard Sensors (IMU Systems): Modern ships are equipped with Inertial Measurement Units (IMUs) or similar sensors that constantly monitor the ship’s movements, including roll and pitch. These sensors provide real-time data, which can be used for navigation and dynamic draft calculations.
Electronic Chart Display and Information System (ECDIS): Some ECDIS systems have integrated functionalities that provide roll and pitch data, particularly for more advanced navigational systems.
Manual Measurement: On smaller or less technologically equipped vessels, roll and pitch can sometimes be estimated visually or measured using a clinometer, though this is less precise.
Ship Stability Software: Many vessels use onboard stability software that calculates roll and pitch based on loading conditions, weather data, and ship motion information. This software can provide estimated values for roll and pitch to adjust the dynamic draft.
Roll and pitch affect the distribution of the ship's weight and thus the draft, particularly at the bow or stern during pitching, or on the sides during rolling. The dynamic draft may increase during extreme roll or pitch.
If your ship is equipped with advanced systems or software, the values are readily available for calculating dynamic draft more accurately.
HELLO, THANK YOU FOR THE EDUCATIONAL VIDEO. CAN I ASK YOU TO SEND A COPY OF THE TABLE FOR CALCULATION SAFETY SETTINGS?
Thank you for watching and for your kind words. Unfortunately, I'm not onboard at the moment, so I don't have the table on hand. However, I'll reach out to some of my colleagues who are currently onboard to see if they can provide me with a copy. Once I receive it, I'll be happy to send it to you. Thanks for your understanding!
@@nauticalacademy001 I apologize, I just wanted to remind that if there is an opportunity, please share the table for calculating the safety settings. For educational purposes I would like to practice on it and check my calculations that I did manually, this will help me. Thanks in advance!
Is it possible to send me a copy of excel you used for the calculation?
yes.
Hello can u send me a copy of excel it’s will be very helpful
@@YuriiYasenchuk-bt7gp Unfortunately, I don't have a soft copy of the Excel sheet since I wasn't onboard at the time. However, I will try to reach out to some of my colleagues and see if they can provide it. I'll keep you posted!
Unfortunately, I don't have a soft copy of the Excel sheet since I wasn't onboard at the time. However, I will try to reach out to some of my colleagues and see if they can provide it. I'll keep you posted!
Hello, very informative video, thank you for this job. Could you send me your excel file too? It is very very useful. I would be most grateful.
Could you explain which speed i need to take into account for squat?
Thank you so much for your kind words! I'm glad you found the video informative. Unfortunately, I don't have a soft copy of the Excel sheet since I wasn't onboard at the time. However, I will try to reach out to some of my colleagues and see if they can provide it. I'll keep you posted!
@@yevgeniysterenok3337 Thank you for the comment. I have made a separate video on how to calculate the squat. Kindly check this link: ua-cam.com/video/6YmnkoMBfFQ/v-deo.html