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Yes I will. It takes time to make a video like passage plan but I will make it. Thank you for reminding me.

Welcome. Glad you like it!

Try to download it from this site: seamankowts.net/true-wind-direction-and-speed-calculator/ Once the site is open, left-click on the photo of the wind calculator, a destination folder will pop up, download it. If you click the link on the comment section, the Excel sheet will automatically open, to download, go to file, below find download, and select Microsoft Excel, a destination folder pop up, select a destination folder to download.

Welcome & thanks a ton.

The fx-991es calculator emulator, I installed it in my laptop, kindly check this video on how to download and install: th-cam.com/video/ffUtDTscbOU/w-d-xo.html If you want to download it in your android phone, go to play store, just search for scientific calculator.

Thank you for your question! Unfortunately, I haven't tried connecting in AIS plug using an Android device. If anyone reading this comment has experience with it, please share your insights with us.

You are welcome!

Thank you. I will make a video about TRS.

Welcome.

Welcome.

Welcome. I am planning to do a video about wind calculation. Thank you for reminding me.

@@nauticalacademy001 This channel is very helpful And also if a junior asks where I learned I can say "from the academy" 😁

Thank you.

OpenCPN has limited features for directly plotting great circle routes as curved lines. However, you can plot a modified great circle track using multiple rhumb lines to approximate the curve. This involves creating several waypoints along the great circle route and connecting them with rhumb lines to form a segmented path that closely follows the desired great circle track.

Thank you.

Welcome.

Thank you.

Welcome. I will make a video about ROT.

Thank you.

Yes, it is included in the compiled ENCs. You can download the charts in the comment section.

Can you please post the chart of Philippines?

Thank you.

The angle of contraflexure refers to a point along a structural beam where the bending moment changes from positive to negative. it's where the beam temporarily experiences zero bending moment, indicating a change in the direction of bending.

Thank you.

Is it the OpenCPN that cannot set up or the charts?

Kindly check the link in the comment section. Click the link to download the complete ENCs or charts. If you download the chart using chart downloader, it only covers selected areas. Download the complete charts from the link in the comment section then follow the 2nd procedure of chart installation.

Thank you.

@@Roman-Permanent bro what are u talking about follow the instructions

Kindly check in the comment section.

@@nauticalacademy001 thanks brother👊 this video was extremely helpful

Welcome. Yes, I will make a video about LCF. Thank for your comment.

ZOC D represents areas where the survey data is of low reliability. It indicates significant limitations in the accuracy and completeness of the hydrographic information. Here are the details for ZOC D: Position Accuracy: Worse than ±500 meters. This means that the actual position of features on the chart can deviate by more than 500 meters from their charted location. Depth Accuracy: Worse than ±2.0 meters + 5% of depth. The depth information is less reliable, with potential errors of more than 2 meters plus an additional 5% of the depth value. Seafloor Coverage: Depths may not be fully surveyed, and there is a high likelihood of uncharted features. The survey may have been conducted using older or less comprehensive methods, such as lead line soundings or incomplete single-beam echo soundings. Hazard Implications: Navigating in ZOC D areas carries a significant risk. Mariners must exercise extreme caution, as uncharted underwater hazards or features may exist. It's advisable to avoid these areas if possible or navigate at reduced speeds to allow for safe maneuvering if an uncharted hazard is encountered. ZOC U signifies areas where the quality of the hydrographic data has not been assessed. This category is used when there is no information available about the accuracy or reliability of the survey data. Here are the details for ZOC U: Position Accuracy: Unknown. There is no information about the positional accuracy of the features on the chart. Depth Accuracy: Unknown. There is no information about the accuracy of the depth measurements. Seafloor Coverage: The quality of the bathymetric data is not assessed. This means there is no guarantee of the accuracy or completeness of the seafloor information. Surveys may have been conducted long ago, using outdated methods, or data may be entirely lacking. Hazard Implications: Navigating in ZOC U areas is highly risky. Mariners should assume the worst-case scenario regarding uncharted hazards and lack of accurate depth information. Extreme caution is necessary, and these areas should be avoided if possible. When navigating through areas marked as ZOC D or ZOC U: Exercise Caution: If possible, reduce speed and maintain a vigilant lookout. Be prepared for unexpected hazards. Use Additional Navigation Methods: Supplement chart information with other navigation aids such as radar, echo sounders, and visual references. Plan Alternate Routes: If possible, plan routes that avoid ZOC D and ZOC U areas, especially in poor visibility or adverse weather conditions. Consult Local Knowledge: If available, use local pilot guides, notices to mariners, and advice from experienced local mariners to gather additional information about the area. Safety Margins: Increase safety margins by navigating further away from potential hazards and allowing more space for error in position and depth.

By dividing 15 when calculating the Zone Description (ZD) from longitude is based on the rotation of the Earth and the relationship between time and degrees of longitude. Here’s a detailed explanation: The Earth’s Rotation and Time 24-Hour Day: The Earth completes one full rotation (360 degrees) in approximately 24 hours. This means that the Earth rotates 360 degrees of longitude every 24 hours. Hourly Rotation: To find out how many degrees of longitude the Earth rotates in one hour, we divide the total degrees (360) by the total hours (24). Calculation: 360° / 24 hours = 15° per hour. Time Zones: The concept of time zones is based on this hourly rotation. Each time zone represents a 1-hour difference from its adjacent time zones. Since the Earth rotates 15 degrees of longitude every hour, each time zone ideally spans 15 degrees of longitude. To summarize: The division by 15 is based on the Earth's rotation, where the planet rotates 360 degrees in 24 hours, resulting in 15 degrees per hour. Each 15-degree segment of longitude ideally represents one hour of time difference from Universal Time (UT). Dividing the longitude by 15 converts degrees into hours, giving us the Zone Description (ZD) that indicates how many hours a location is ahead of or behind UT.

@@nauticalacademy001 Great 👍

Welcome.

Thank you. I will make a video about draft survey.

Thank you.

Thank you.

Thank you.

Thank you.

Welcome.

Very usefull video, thanks alot bro. but how to find the Middle East and South East area Charts..

In the context of ship stability and dynamics, the moments (represented by £ X•Y•Z in your comment) can indeed cause a ship to rotate or revolve around certain angles. Here’s a brief explanation: Moment: A moment is a measure of the force causing an object to rotate. In physics, it’s calculated as the product of the force and the distance from the point of rotation (lever arm). Axes of Rotation (X, Y, Z): These refer to the three principal axes in a 3D coordinate system. X-axis: Typically runs from the bow (front) to the stern (back) of the ship. Y-axis: Typically runs from port (left side) to starboard (right side) of the ship. Z-axis: Typically runs vertically, from the bottom (keel) to the top (deck) of the ship. A ship can rotate around these axes due to the moments acting on them, resulting in different types of movement: Roll: Rotation around the X-axis (side-to-side tilting). Pitch: Rotation around the Y-axis (up-and-down tilting of the bow and stern). Yaw: Rotation around the Z-axis (left-to-right turning of the bow). When a moment acts on a ship, it creates a rotational force that can cause the ship to rotate around one or more of these axes, changing its orientation in the water. For instance, a moment around the Y-axis (X•Y•Z referring to Y) would cause the ship to pitch, while a moment around the X-axis would cause the ship to roll.

Thank you. I just used Microsoft PowerPoint 2021. To animate, I usually apply Morph transition.

As stated in this video, the company policy for the Under keel Clearance (UKC) should be greater than 10% of the ship's static draft. The 10% of 7.50m is 0.75m, so the UKC should be greater than 0.75m. But if the company policy states that the UKC is greater than 10% of the ship's draft or 1m whichever is greater, then the minimum UKC should be 1m. The 1.53m is the new squat when the speed is reduced. In the video, the solution that you have seen is like this: Depth of the water minus ship's draft, minus Squat, minus Swell, minus CATZOC, equals UKC. You can do it using this method: Depth of the water minus (-) the sum of (draft + squat + swell + CATZOC) equals UKC. In calculating the ship's UKC, always refer to the company SMS manual, the procedure may vary between companies.

As stated in this video, the company policy for the Under keel Clearance (UKC) should be greater than 10% of the ship's static draft. The 10% of 7.50m is 0.75m, so the UKC should be greater than 0.75m. But if the company policy states that the UKC is greater than 10% of the ship's draft or 1m whichever is greater, then the minimum UKC should be 1m. The 1.53m is the new squat when the speed is reduced. In the video, the solution that you have seen is like this: Depth of the water minus ship's draft, minus Squat, minus Swell, minus CATZOC, equals UKC. You can do it using this method: Depth of the water minus (-) the sum of (draft + squat + swell + CATZOC) equals UKC. In calculating the ship's UKC, always refer to the company SMS manual, the procedure may vary between companies.

Thank you.

Welcome.

Thank you.

Kindly review the procedures in the video, maybe you miss something.

Thank you. I'm glad you found my video valuable. Yes, I'm planning to upload a video on celestial navigation calculations soon.

I will make a seperate video on how to construct a gz curve manually.

@@nauticalacademy001 it will be so important and useful information for us, thank you

You are welcome.