The way you taught us sir are so clear and easy to understand. We the aspiring to become a navigational officers are so thankful for your videos. Best regards from philippines.

@SailorVikas

3 жыл бұрын

Thanks a lot ❤️🙏

You have made good videos for seafarers. Cheers, keep up the wonderful work vikas.

Nice video dada

Vry helpful sir.. 🙏🙏

@SailorVikas

3 жыл бұрын

Thanks❤️

Really superb brooo....very well explained

@SailorVikas

2 жыл бұрын

👍

Damn legend thank you!❤

This was best video I ever had on sog and stw thanks

@SailorVikas

Ай бұрын

😍😍

Thanks for your videos brother. Big help.

@SailorVikas

3 жыл бұрын

Welcome bro❤️

Really good explanation and thanks alot brother

@SailorVikas

3 жыл бұрын

Welcome 👍

Nice to see your content sir...Very knowledge worthy n useful.I am presently studying in 12th std saving all of your videos which will help me for the interveiw and for the whole career of mine.

@SailorVikas

3 жыл бұрын

Great, thanks , keep learning ❤️

Very good explanation. Thank you.

@SailorVikas

7 ай бұрын

✌✌

Many thanks from the UK!

@SailorVikas

3 жыл бұрын

Welcome and all the best ☺️

Great explanation. Best regards from Poland.

@SailorVikas

8 ай бұрын

Glad it was helpful!

many many thanks from Japan

@SailorVikas

2 жыл бұрын

Great ❤️

Thanks a lot bro... Radar is also known as a third eye...very important 🙏

@SailorVikas

3 жыл бұрын

Yeah right ❤️ thanks , keep learning ❤️

@rakeshsharma-cy3zh

3 жыл бұрын

@@SailorVikas one request please make video on tide's and how to calculate?

@SailorVikas

3 жыл бұрын

Well noted 😊

Thank u so much from 🇧🇩

@SailorVikas

3 жыл бұрын

Welcome

Can you please teach us about TRS and synoptic charts to check weather. And how to keep vessel away from TRS? Thanking you

@SailorVikas

3 жыл бұрын

Yes, sure well noted !

Why does my ship not display vectors when using relative vectors in ground stabilization mode?

the question is, if u are both close to land and also u have traffic and collision avoidance is required, what is your set up regarding the stabilization and vector? nice content btw!

@SailorVikas

3 жыл бұрын

Even if you put ground stabilized mode, ARPA always gets feed of STW and not SOG. So CPA and TCPA won't change by changing stabilization of radar. In ground stabilization mode, ground vector is displayed to let you to know where is ship moving, however calculations by ARPA won't change because ARPA always gets the feed of STW ( Which doesn't get affected by current )

@matrosnya7790

3 жыл бұрын

And what if your Doppler or mechanical speed log is having a huge error? Your arpa is showing the wrong cpa etc...?

@SailorVikas

3 жыл бұрын

@@matrosnya7790 huge error !!! U won't use such an equipment If it has huge error where STW is showing 5 kts and SOG is showing 15kts unless u have strong currents , for the above problems you have to use SOG for approaching critical waters and for collision avoidance you have option to input STW manually in Radar/arpa ☺️

Sir! If we are in ground stabilized mode and using relative vector.... and current is against us... and it will reduce our SOG.... then will it affect the length of relative vector??...Sir can you please answer

@SailorVikas

3 жыл бұрын

Relative vector has nothing to do with current, you can set the length of relative vector at 3min, 6 min etc

Loved it sir 👍 one question.. To which ships does MARPOL annex 4,6,and 3 apply to?

@SailorVikas

3 жыл бұрын

Annex 4 & 6 : Applies to all ships as sewage and pollution of air is produced by all types of ships. Annex 3 : Depends what type of cargo it is carrying whether packed or in bulk ..it depends on ship type.

@reetbhattacharya7907

3 жыл бұрын

@@SailorVikas thank you sir :)

@SailorVikas

3 жыл бұрын

@@reetbhattacharya7907 welcome mate❤️

Vessel is ground stabilizer and put relative vector and what i get result?

@SailorVikas

2 жыл бұрын

What result you mean exactly ? Ground stabilized will help u show ground vector of ur vessel. Relative vector is of target vsls not ur ship.

Ok if its mandatory to use STW on ARPA, what about wind, current difference between targets, error in speed log? Then arpa not reliable?

@SailorVikas

3 жыл бұрын

Stw is to be used for collision avoidance. It's not mandatory , how ever it's the good practice to use so and during port approches or approaching anchorage we use SOG as ground vector takes consideration of Wind,current and lets us know where is ship dragging, also if their is error in speed log/speed log is inoperative than also we use SOG till the time equipment is rectified.

@matrosnya7790

3 жыл бұрын

Im glad that you replied, thank you. And why is it so important to use STW? Can you give a one solid example from real life? There is a COLREG which explains the rules to avoid collision situations and as far as ARPA calculating same CPA and TCPA and all the rest regardless of speed input (as basically it uses range and bearing calculations) so why would you use relative speed log instead of absolute?

@SailorVikas

3 жыл бұрын

In simple words, relative speed is used to obtain relative vectors...in head-on situation When their is current and you use ground vectors, in radar it appears to be a crossing situation which is not true and if u use STW , that is relative vectors, than It will not appear as a crossing situation thus STW is used ☺️

@matrosnya7790

3 жыл бұрын

So in simple words if im using SOG and true vectors i will not understand that its head on and not crossing? I can't get it...

@SailorVikas

3 жыл бұрын

@@matrosnya7790" if their is current " you will see the ship dragging in a cross direction...watch this video of mine to get a clear understanding kzread.info/dash/bejne/fqOmmM6voszVmbg.html

Bro...when will be the true and relative vectors be the same?

@SailorVikas

3 жыл бұрын

Head on situation with no current

sir..one doubt while using radar which vector is best aid for collision avoidance realtive or true sir...plz reply me

@SailorVikas

3 жыл бұрын

True trails, Relative vectors. Relative vectors of target will help you identify how the target is passing whether ahead of you, behind of you or its on a collision course.

@sumanmathavan8346

3 жыл бұрын

@@SailorVikas TKS SIR...

@SailorVikas

3 жыл бұрын

Welcome mate ❤️ Keep learning ❤️

@amitchandel3148

3 жыл бұрын

@@SailorVikas same thing wanted to ask sir you already replied.. For navigation I keep north up true vector relative and trails true which gives clear view how other ship passing from you no need to check cpa by clicking on vessel.. Thqnx for making informative stuff.

@SailorVikas

3 жыл бұрын

@@amitchandel3148 welcome mate ❤️

Sir how are you? One question... What is constant radial turn?

@SailorVikas

3 жыл бұрын

Refer Bhatia book bro .. Quiet lengthy to explain here

@reetbhattacharya7907

3 жыл бұрын

@@SailorVikas okay sir thank you :)

bro which vector is ideal at sea relative or true

@gavinpatrick755

3 жыл бұрын

bro can you please reply

@SailorVikas

3 жыл бұрын

Relative vector is ideal at sea ( assuming radar set at sea stabilised)....if relative vector of other ships point towards you than its risk of collision with cpa 0 and if the vector pass head of you than it means ship is bow crossing and if vector pass behind you than other ship is passing astern of you,...for port approaches and coastal sailing....true vector is ideal to know the drift of ship , wheather it's towards land or not ( assuming radar is set on ground stabilied), if you have any doubts regarding vector see my videos of ground and sea stabilsation and radar videos, everything will be cleared ...just listen carefully of what I say in video.

@gavinpatrick755

3 жыл бұрын

@@SailorVikas thanks a lot bro much appreciated

@SailorVikas

3 жыл бұрын

@@gavinpatrick755 ❤️❤️

Sir why seastabilization is used for collision avoidance?

@SailorVikas

3 жыл бұрын

Watch in this playlist, their is one video with name WHY SPEED THROUGH WATER USED FOR COLLISION AVOIDANCE kzread.info/head/PLHMRo9UqDFq7iTmC59QP1JnVAOuvG5O97

@sreejithsa6794

3 жыл бұрын

@@SailorVikas sir same answer apply here also right sir . Now it's clear sir thankyou sir ...keep posting more sir

@SailorVikas

3 жыл бұрын

Yup

@sreejithsa6794

3 жыл бұрын

@@SailorVikas sir one more doubt we have to elaborate deeply when mmd surveyor asked like what you explained sir ..thanks

@SailorVikas

3 жыл бұрын

Mostly mmd orals are saying with confidence and one line answers....only few Questions require little detailing

Please avoid background music 🙏🏽🙏🏽

@SailorVikas

Жыл бұрын

Sure

India many talk 🐶