Speed Through Water (STW) vs. Speed Over Ground (SOG): Why It Matters for Radar Collision Avoidance?

[@neerajbalhara2650]

Excellent video and animation. Thank you

[@nauticalacademy001]

Thank you so much! I'm glad you enjoyed the video and animation. Your support means a lot! Stay tuned for more content.

[@johnnymanuel5131]

Many thanks for always share your new video.

[@nauticalacademy001]

Always welcome & thanks too.

[@Sailor360]

It really helps. Thank you so much for such helpful video. May I know from which website you take this kind of animated video?

[@nauticalacademy001]

Thank you so much for your kind words! I'm glad you found the video helpful. 😊 The animation was created entirely in PowerPoint using the Morph Transition feature to move the objects smoothly. The radar and its display animation were also custom-made in PowerPoint. Thanks again for your support! 🚢✨

[@Sailor360]

@nauticalacademy001 ❤️😊 Great job for seafarers indeed😊❤️

[@jasteeno]

thankyou for this video sir, can you make a video about the difference of heading and course over ground sir.

[@nauticalacademy001]

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.

[@TormentedHealer]

Where to find a proper radar simulator for a laptop/pc?

[@nauticalacademy001]

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

[@FaizanDingankar]

What if I kept sog and swtiched vector to relative ? Then will it show the same screen as that of stw on radar?

[@nauticalacademy001]

Thank you for the comment. If the radar is set to relative vector mode, the vectors will appear the same regardless of whether you are in SOG (ground-stabilized) or STW (sea-stabilized) mode.

[@FaizanDingankar]

@nauticalacademy001 thankyou sir

[@xciimani7513]

I don't understand why need to make the explanation with the boat and the island... just say that stw should be equal to engine distance (if you are moving with the engine) or equal to the current (if you are not using the engine )

[@nauticalacademy001]

Thanks for your feedback! This video on speed through water (STW) and speed over ground (SOG) covers more than just engine speed and current. It also explains how we interpret radar targets, whether moving or stationary, since setting the radar to STW or SOG can affect the accuracy of target vectors. This understanding is crucial to avoid mistakes in collision avoidance and applying COLREGs effectively. The boat and island examples help demonstrate these points visually for better clarity. Hope this helps!