Magnetic Variation (How to compute Magnetic Variation) | Marino Guide 003
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- เผยแพร่เมื่อ 21 ก.ค. 2024
- Magnetic Variation
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Thank you for visiting my Channel and watching my video. If you have any topic that you want to explained or discussed, please do comment. I will happily entertain your request.
Thank You So Much Pare. Your chanel very good. Good luck from Indonesia😊
Love how you put the practice questions at the end. Excellent job explaining thank you for making this video
Excellently explained.
Thank you and well done!!!
👏👏👏👊🥂 I got it nicely . Keep posting dear Captain.
Thank you for this video I learn a lot of knowledge because your voice is very clearly and nice to hear
Thank you. Very informative video.
Sir! You have really helped me coz l was strugglering to work out these problem but now am ok
Very very understanding and helpful thank you
Thanks a lot from Tanzania
Good Job. Thanks.💪
Good one, 👍
Great work man, keep updating on daily bases. Very informative 👍
Thanks, will do!
Thank you very much to let us get to know for more knowledge .
Yeah mate, my pleasure! Hope you will look forward for my other videos soon!
Thanks! After not fully understanding a couple of lessons on Variation your explanation and the exercise at the end made things very clear. I finally totally understand and can calculate the current Variation from the information on the compass rose. Thanks for the great tutorial.
Glad that this video helped you Dakota Lane! Stay tune for more videos. Cheers mate!
@@marinoguide thank-you for making this video it's helped me to understand this 🙏
Thank You So much
wonderfull explanation.
Hello! Thanks and I really appreciate it
Mas natuto pa ako dito kesa sa school kasi pag sa school pag tinuturo yan ng instructor namin inaantok ako at ginagawang komplikado pero nung napanood ko to at naitindihan shet ang dali² lang pala hahahaha keep vlogging po sir for the guides godbless po.
Hi Kenzo! Thanks for appreciating my vlog/lesson. Look forward for more videos as soon as I finish my contract on my ship.
I tend to make things simple so that viewers will understand it easier. I hope to see you on my next vlogs!
Cheers mate!
And I hope that you can share my TH-cam Channel to other aspiring mariners. Thanks
Aye, aye! sir mag kakadete pa lang ako sir at malaking bagay tlga toh samin mga aspiring seafarers para ma maintain ang knowledge kasi napaka importante kasi nun at magagamit din ba lang araw hehehe Have a safe voyage sir..
Thanks Kenzo, look forward for more videos once I finish my contract. FYI, I am now a Third Officer. I was promoted last 2019. So don't lose hope, just aspire to be one so someday, you will be one.
Wow naman..grabe nakaka inspire pa lalo kahit na sariling sikap ako sa pag aapply kasi walang backer pero still it gives me hope na magtuloy² hanggang sa maabot at maging isa sa inyo sir. 👍
Helpful
Thank you ♥️
Hello Jondel! I’m glad that this helped you :)
Sir request lang sana maka gawa ka din ng vid. On how to make passage plan step by step and correction of charts.
You should do correcting and uncorrecting compass error sir
thankyou so much sir
All the best. Hope this helped you
Thank you so much sir bedz
Any time
Calculations of time distance and speed of the ship naman po❤️
What if the variation on the given year is NIL in the year of 2017 and the annual change in variation is 4'w?
Sa school namin me kuno convert convert pa😵💫😵💫
✌️✌️✌️
Hi, what do you mean by ✌🏻✌🏻✌🏻? ☺️
Sir can you show another video about ETA calculation in different zone time? Your video is very helpful and understandable.
Hello Allan, thank you for visiting my channel. Aside from time zone, what other topics do you want me to make a video?
Good
Thanks for checking out my videos! Hope you liked it
I want to know how to take sight and compute compass error
Soon, I will post video regarding that topic
What do you mean by annual variation? Is it the average?
No. The annual change in variation refers to how much the adjustment or correction will be.
Thank you for your clear explanation and wonderful videos can you please tell me how Ican work out deviation for magnetic compass since we don't have deviation table for our magnetic compass to use this formula C D M V T no information I have about deviation to solve this formula C D M VT thank you for your cooperation and good luck
if the given is year=2004 and variation is 12degree 15'W and annual change=incresing (E) how i solve this sir
Hi Juvy! Please note that if same sign, this means that the variation is increasing and different sign means variation is decreasing. Based on the given that you stated, we can infer that it is DECREASING since the Variation is West and the Annual Change is East. In this case, you will subtract the annual change to the variation.
I hope this clears up your question.
@@marinoguide thank you very much sir
@@marinoguide sir how you solve the 88' divided by 60' to get 1 degree 28' because when i solve it in scientific calculator there are no match like you're answer
sir are you sure if you compute 4degree 15' subtracted 1degree 28' is equal 2 degree 47' ?
I think the answer is 2degree and 87'
Hi CJ! Thanks for asking a question. The answer really is 2*47’.
4*15’
- 1 *28’
1 degree is equal to 60’. Since we cant subract 15’ to 28’, we have to borrow from 4*. Thus, it will become like this:
3*75’
- 1*28’
-----
2*47’
I hope this answer your question. If you have any clarification, you can comment again and i will reply ASAP.
i would like to ask what if the total change variation has a higher value than the given variation
First, is the sign of the total change of variation and the given variation the same?
@@marinoguide no,
the problem is Calculate the varitionnonte location for the year 2021, if the variation compass rose of the chart was 3 degrees 10 mins. W (8'E) in 1995
so i will subtract it because their direction is different and the answer will be -1° 45' E but my prof said that there's no negative in variation
@@marinoguide please help me understand or make a problem where the variation goes in the other side like the given variation is in west side and the current variation goes to east side.
Same problem, bro. My answer have negative I don't know what's the problem.
How if the anual change in problem is decreasing?
Hi Kent. Then you should perform the operation. Same sign add, different sign subtract.
Let’s say that the annual change is 3’E. And the variation is 2 degrees E. Here, you will see that they have the same sign or direction which means that variation is increasing because it will give an answer of 2 degrees 3 minutes East.
But if the variation is 2 degrees west with an annual change of 3’ E, then, variation is decreasing.
Hope that this answers your questions and also, I mentioned this part on the video. Kindly refer to the part of problem solving where directions were discussed. Cheers mate!
If you have any other question, you can comment again and I’ll reply the soonest!
Let’s say that the annual change is 3’E. And the variation is 2 degrees E. Here, you will see that they have the same sign or direction which means that variation is increasing because it will give an answer of 2 degrees 3 minutes East.
But if the variation is 2 degrees west with an annual change of 3’ E, then, variation is decreasing.
Hope that this answers your questions and also, I mentioned this part on the video. Kindly refer to the part of problem solving where directions were discussed. Cheers mate!
If you have any other question, you can comment again and I’ll reply the soonest!
How to get annual change
Annual change can be found in the Chart inside the compass rose or in ECDIS by interrogating the chart details.
I made it. 8'
4-1 = 3 15-28 = 13 def name , how did you get the 2 deg 47 minutes ????
Hi Joshua! Take note that 1 degree is equal to 60 minutes.
Hope this helped you 😃
Palagi po bang ggmitin ang Multiply then devide sir? O depende po sa sum ng minultiply?
Case to case basis but it depends on the situation. Hehe. It is much better to simplify so that there will be no confusion.
I dont understand how you subtract the 1 degree 28 minutes form the 4 degrees 15 minutes in your example. I keep coming up with 2 degrees 87 minutes. You example says its 2 degrees 47 minutes.
Hi Face Diaper, thank you for taking your time watching my video.
The answer 2°47' is correct.
From the given, you can't subtract 15' from 28', so you need to borrow from 4°. We know that 1° is equal to 60'. Since we are going to borrow, we have to add 60' to 15' which is equal to 75'.
75' - 28' = 47'.
From 4°, it will become 3° because we borrowed a whole 1 degree. So, 3° - 1°, it will become 2°.
Therefore, the final answer will be: 2° 47'.
Also, please refer to 5:03 of this video where I mention that 60 minutes is equal to 1 degree.
I hope this answer your question. Should there be any confusion, feel free to comment or reply this message. Thank you and have a nice day!
Make video on vari. application ALSO plz
Yes and I will upload it as soon as I have a steady connection. Cheers mate!
Why is it that the answer is 2°47'?
It must be 2°87' right?
Hi Elthon, thank you for taking your time watching my video.
The answer should be 2°47'.
From the given, you can't subtract 15' from 28', so you need to borrow from 4°. We know that 1° is equal to 60'. Since we are going to borrow, we have to add 60' to 15' which is equal to 75'.
75' - 28' = 47'.
From 4°, it will become 3° because we borrowed a whole 1 degree. So, 3° - 1°, it will become 2°.
Therefore, the final answer will be: 2° 47'.
I hope this answer your question. Should there be any confusion, feel free to comment or reply this message. Thank you and have a nice day Elthon!
@@marinoguide Owh ok I get it thanks for the explanation❤️
You’re welcome!
pano nakuha yung 2*47 ? diba po dapat 2*87?
Nagtataka nga din ako eh bakit 2°47' ang sagot na dapat 2°87' yung tamang sagot
Yung minute po ba wala nmngg limitation? Like 190 minute yung finale answer?
If it is over 60 minutes, it's better to simplify it to degrees-minutes
@@marinoguide noted thankyou
Sir about naman po sa TVMDC CDMVT
Hi Jan Rey! Thank you for checking out my videos and yes, I will make to TVMDC and CDMVT calculation. Hope you can be patient. I am currently onboard right now and will upload soon.
Wala pong year na binigay sir namin, pwede po bang makuha or error po?
Hello! Thank you for taking time on watching my video. Usually, may binibigay na year dapat to compute the Variation.
May mga cases naman na may Variation Line sa ECDIS or chart na kung saan di mo na sya kailangang lagyan ng Annual change.
To play safe, much better to ask your Prof/Teacher. Baka nakalimutan lang.
Hello! Thank you for taking time on watching my video. Usually, may binibigay na year dapat to compute the Variation.
May mga cases naman na may Variation Line sa ECDIS or chart na kung saan di mo na sya kailangang lagyan ng Annual change.
To play safe, much better to ask your Prof/Teacher. Baka nakalimutan lang.
for the first practice problem, you forgot to divide it by 60
Bro you don't need to devide if the product is not greater than or equal to 60
88÷60 = 1.5
88/60 = 1.46666667 degrees.
To convert it to minutes, subtract the degree part (which is 1 degree) then multiply it by 60
0.4666667x60= 28 minutes.
Therefore, 1 degree and 28 minutes