Welcome aboard to Nautical Academy! I’m Ron, your guide in understanding the fundamentals of Nautical Science with basic calculations. Whether you're a maritime student, aspiring to join a maritime academy, or an aspiring deck officer, my videos are designed to provide comprehensive explanations of key topics in Navigation, Trim, Stability, and other crucial elements in the maritime field. While calculations are a significant focus, my content goes beyond mere numbers, offering detailed insights and practical applications to deepen your understanding of these essential subjects.
-ABOUT- With decades of sea experience employed in Merchant Ships, and another decade teaching at Maritime Academy, my channel will help you grow your knowledge toward the success of your seafaring career.
Hi , if i select Relative motion , Sea stabilized with relative vector and true trials.. Does it show trials for stationary objects?? Because i saw in the video there is no trials for stationary objects and its shown with true vectors and true trials same apply for relative vectors with true trials??
Great question! In Relative Motion, Sea Stabilized with Relative Vector and True Trails, stationary objects will not have trails because the trails are set to true, meaning they reflect actual movement relative to the ground. Since stationary objects don't move relative to the ground, they won't show trails. Switching between true and relative vectors does not affect the display of ship's trails. Vectors and trails are independent settings on the radar. • Vectors show the predicted future position of targets based on their motion (either true or relative). • Trails show the past positions or movement history of targets (either true or relative), based on how they’ve moved over time. So changing the vector setting from true to relative, or vice versa, affects only the direction and type of the vectors, not the trails. Summary: Regardless of whether the radar is set to true or relative motion, and whether the vector is set to true or relative, if the trails are set to true, only moving objects will display trails. Stationary objects relative to the ground will not show any trails, since they have no movement to trace.
Thanks for your comment! I haven’t tried connecting OpenCPN to AIS myself, but there is a plugin available that allows you to do so. I haven't personally tested it with AIS, but you can look into the plugin and give it a try. Hope that helps!
@@nauticalacademy001 I was do it many year ago but i forget right now. I am on a ship and I am trying the system with the ais system but I think it is impossible
Thank you for such a clear explanation! Only have decided to make one remark about, fortunately less but still in effect unpleasant practice among some, mostly young, officers: activating MOB mark on GPS/ECDIS upon dropping the anchor OR just directly taking the position from GPS upon the same AND using it as a reference (center) point for the swinging circle without corrective calculations. The case is that they are taking the position (either manually or by activating MOB) not of the dropped anchor itself, but of the GPS antenna which is on compass deck right above the Bridge, and correspondingly 100+ meters away from the actual anchor position. Definitely, this may not have harmful effect on the safety with small vessels and at some far and not congested anchorages, however at the same Singapore strait, rivers, etc. it certainly may have..
You are making up normal work , really the best channel ever very professional If have any loadmaster program or loadictor or any explained about that Good luck and appreciated your job
Thank you so much for your kind words and support! I don't currently have any loadmaster or loadicator software, but I’ll try to work on that in the future. Stay tuned, and I really appreciate your feedback!
Thanks for your comment! I appreciate the suggestion, and I'll try to make a video covering the difference between heading and course over ground soon.
Thank you so much for the support! I'm really glad you're finding the content helpful. Your encouragement means a lot, and I hope my channel continues to grow and reach more people!
Good day sir, I tried to close the Open Cpn but when I opened it again, the charts aree missing. I don't know what to do. Do you have fb acc? I would like to send to you the pic so you could see. Pls help me.
OpenCpn has limited tools than the ECDIS we used onboard, but we can still add some information in the ENC manually using the drop marks. For the lines such as PPI, no go areas, and some points necessary to be labeled in the the passage plan, we can use the new route and draw a lines manually. There are plug-ins available in the OpenCpn but I never explore it. For those who have installed plug-ins that can be used to add such information, fell free to share it. Thank you.
Immenesly thank you for your comprehensive explanation on this topic! Only one additional question I have as a beginner: what an actual rudder angle is mentioned under achievement of 1 nm Turning Radius? Maybe the more correct question: what rudder angle shall we put upon approaching a WOP to maintain a desired radius of turn, is it rudder full to required side or half?
Thank you for your kind words and great question! The rudder angle required to achieve a specific turning radius, like 1 nautical mile, depends on several factors such as the ship's speed, design, and loading condition. Generally, for large vessels, a rudder angle of around 10-20 degrees (also known as a "moderate" helm) might be sufficient to achieve a 1 NM turning radius. However, to be more precise, ships with advance turn prediction systems or ECDIS integrated autopilots often calculate the required rudder angle automatically. As a general practice, you may start with 10 degrees and adjust as needed. Using a full rudder might lead to a much sharper turn than intended, so it's advisable to start with moderate rudder and fine-tune during the turn. I hope this helps, and thanks again for watching!
Thank you for your request! I’m currently looking for some resources that will help me create a detailed passage plan for navigating the Singapore Strait. Once I have the right setup, I’ll definitely work on making that video.
Thanks for your question! I haven’t tried installing ENCs on a Mac yet, so I can’t confirm if it works. If you do give it a try, feel free to share your experience here!
Correction at Timestamp 6:38: The Reaction distance is incorrectly labeled. It should be labeled as the distance from the beginning of the turn (turning point), going back along the planned track to the wheel over point or wheel over line, and not from the turning point to the waypoint. Typically, the reaction distance is around the ship's length, but in some cases, it can be measured as 2 cables from the turn point, tracing back along the planned track to determine the wheel over point. Correction at Timestamp 11:17: The term "Reaction distance" is incorrect. It should simply be referred to as the distance from the waypoint, measured on both sides of the planned track, to determine the beginning of the turn (turning point) to the end of the turn.
This is the best channel for navigators i have never seen any channel giving such detailed information with graphical representation. The doubts which we had since so many years have been solved in just few mins of watching your videos. Thanks for the good work and keep uploading more videos .
Thank you so much for your kind words! I'm really glad to hear that the videos are helping to clear up doubts and provide useful information. It's comments like yours that motivate me to keep creating content for the channel. I'll definitely keep uploading more videos, and I appreciate your support! Thank you.
Point of clarification…Distance run along the turning radius from turning point to turning end point should be lesser than the reaction distances. Time run is calculated where the ship is traveling along the turning radius(dist run) . Reaction distance should be more than the distance run…😢
Great question! We typically set the radar to ground stabilized mode in coastal waters because it helps us account for the effects of tidal currents and wind, allowing for more accurate navigation relative to fixed land references like shorelines, buoys, or other stationary objects. The true vector in ground stabilized mode shows the course made good, giving you a clear indication of the ship's direction and whether you’re heading into a dangerous area. This mode provides a clearer understanding of the vessel's actual movement over the ground, which is crucial in areas where external forces like currents can have a significant impact on the ship's track. However, if there's high traffic density in the area, the other radar should be set to sea stabilized to be used for collision avoidance. Thanks for watching!
Very helpful video, revise basics, but one doubt, at of the video, u mentioned changing over from true vector to relative vector, but it created a confusion to me as relative motion box still states RM(T), i am not pointing out an error, if it is. But ur clarification will clear my doubt. Thank you in advance
Thank you for your thoughtful comment! I’m glad you found the video helpful. For switching between True and Relative Vector, I recommend referring to the manufacturer's manual, as the interface can vary between different radar systems.
Thanks for your comment! The calculation of anchor shackles can vary depending on the preferences of the master, especially when the seabed is not a good holding ground. While some may use the formula you mentioned in good weather conditions, others might adjust based on factors like seabed conditions and expected weather changes.
Thanks for your question! I’m also looking for a reliable radar simulator for laptop/PC. If I come across any good options, I’ll definitely share them. In the meantime, if anyone else has suggestions, feel free to share! Just to clarify, the radar display you see in my videos is an animation I created using PowerPoint
nice video mate for aspiring officers, BTW do you have the navi planner 4000? i have one but i'am having trouble installing. maybe you can make guide if you have one. thanks!
Thank you, mate. I used to have Navi Planner 4000 running smoothly on my laptop, but unfortunately, I'm now having issues with the software. I tried reinstalling it, but the problem persists. I'll keep you updated once it's fixed.
