HOW TO CALCULATE COMPASS ERROR ONBOARD

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  • เผยแพร่เมื่อ 1 ก.พ. 2025

ความคิดเห็น • 76

  • @nandy4392
    @nandy4392 วันที่ผ่านมา

    bhai no 1
    kya explain kiya hai

  • @IrshadKhan-tt3fh
    @IrshadKhan-tt3fh 4 หลายเดือนก่อน +1

    Very Well Explained, Thankyou.

  • @priyanshumangal1854
    @priyanshumangal1854 4 หลายเดือนก่อน +2

    Being a officer on board sir this will help me a lot currently completing my pre sea in anglo... Thanks for videos like this sir. ❤
    One correction in video the formula to find B is tan (dec) /sin(P).

  • @abhijitkumarsingh5536
    @abhijitkumarsingh5536 ปีที่แล้ว +1

    Really nicely explained ❤

  • @roycefernando177
    @roycefernando177 2 หลายเดือนก่อน +1

    Very good expanation❤

  • @Didiclimbs
    @Didiclimbs 6 หลายเดือนก่อน +1

    What woud happen to an azimute taken at the PMS using the magnetic Compass? Would it be a viable option if i using the Magnetic compass?
    Great explanation and thank you for disposing your time to make this very informative videos!

  • @jeevab1603
    @jeevab1603 9 หลายเดือนก่อน +1

    Thank you so much sir very useful video

    • @sailorguide
      @sailorguide  9 หลายเดือนก่อน

      Thnks brother 👍

  • @rahmatislam2662
    @rahmatislam2662 ปีที่แล้ว +1

    Thank you so much sir.
    Love from Bangladesh!

  • @VIKASHSINGH-ko5os
    @VIKASHSINGH-ko5os 9 หลายเดือนก่อน +1

    Absolutely correct Bhai we do the same

  • @daniqueseamoore
    @daniqueseamoore ปีที่แล้ว +4

    qUESTION: For the time, wouldn't it be 1329 because it is daytime instead of (0129 the sun is not out that time) and as such the corresponding GHA would be 11 degree 27.3minutes??????

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      Fir calculation we always take UTC time not the local time . So the time mention in GPS will be taken for calculation as mentioned in the video

    • @daniqueseamoore
      @daniqueseamoore ปีที่แล้ว

      Okay thanks for the clarity. So basically the LMT at that time was 1042... Hence why the true bearing of the sun was SE ?

    • @mohitchauhan8099
      @mohitchauhan8099 ปีที่แล้ว

      Formula for B is also wrong

    • @sumitrwat457
      @sumitrwat457 7 หลายเดือนก่อน

      @@mohitchauhan8099then what is it ?

  • @gunawansalimu7026
    @gunawansalimu7026 ปีที่แล้ว +8

    Correction sir.I think the formula for value "B" is Tan Dec : Sin P

  • @gulshanvashist8618
    @gulshanvashist8618 ปีที่แล้ว

    Very well taught..thankyou

  • @mariner8101
    @mariner8101 ปีที่แล้ว +1

    Thanks bro , your video helped me

  • @navigatorvishalvlogs5803
    @navigatorvishalvlogs5803 ปีที่แล้ว

    Explained well....

  • @paugi410
    @paugi410 ปีที่แล้ว +2

    Question, the "P" value, do you also apply the LhA rule on a Star observation, where 360-LHA if the LHa is more than 180? Also can you explain more about the correct naming of magnetic error, for example when they are same name as the Variation, when you are trying to get the Deviation?thank you

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      Yes LHA rule will be applicable to there also . Nd naming of the Deviation is very simple i showed in video also . Please do check out that one again because explaining it here will be a bit difficult

  • @AswinPrakash626
    @AswinPrakash626 ปีที่แล้ว +1

    Can u do video regarding working of gyro and why gyro fails in higher latitude.

  • @nireesharya7861
    @nireesharya7861 ปีที่แล้ว +2

    Thank you sir....❤❤

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      Your welcome nireesh 🙂

  • @Dewsando
    @Dewsando ปีที่แล้ว +2

    Question, can i use C D M V T method after i get the error from your solving?. The T is AZ= 148.6 and the C is 150 i have variation i will work my way to get M and deviation also ?

    • @sailorguide
      @sailorguide  ปีที่แล้ว +1

      Yesss sure its same thing .. i just happen to learn it in a different way.. CDMVT can be used you will get the same answer. 👍

    • @arjunashok5866
      @arjunashok5866 ปีที่แล้ว

      Bro can you explain how CDMVT is calculated?

  • @mdganesh5764
    @mdganesh5764 ปีที่แล้ว +2

    Can you make video sir ,why we are take the compass error?what is the use of that?

    • @sailorguide
      @sailorguide  ปีที่แล้ว +3

      Compass error is important for navigation point of view ... If we have a compass error of more than 5 degrees we need to request for the service for magnetic compass. Service engineer actually changes the magnetic bars inside the magnetic compass to adjust the error

    • @mdganesh5764
      @mdganesh5764 ปีที่แล้ว +1

      @@sailorguide compass error means the difference between gyro heading and magnetic heading ,is ti Correct sir

    • @mdganesh5764
      @mdganesh5764 ปีที่แล้ว +1

      Then when we find out gyro error ,why we are mentioned the sign in low and high?

    • @sailorguide
      @sailorguide  ปีที่แล้ว +1

      @@mdganesh5764 because Gyro error is independent of the magnetic field of the earth.. magnetic compass variation and deviation is the factors for Error , whereas Variation and Deviation we always mention in East or west.

    • @mdganesh5764
      @mdganesh5764 ปีที่แล้ว

      Hello sir ,can you give me the exact answer for speed through water and speed over ground

  • @grslink79
    @grslink79 ปีที่แล้ว +1

    sorry just something to clarify if u can pls.. shouldn't u have picked report (i) on the variation and adjust for year? I am under the impression that the -5 and -6 are not necessarily for the year you are on. could you double check ? thank u

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      You are right in this video i have not taken yearly change of variation in the consideration..

  • @yashrajsingh9684
    @yashrajsingh9684 ปีที่แล้ว +2

    Please make video on long by chron

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      I will make video surely

  • @balajil8471
    @balajil8471 ปีที่แล้ว

    Thank you for video bro

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      Your welcome ... Glad to help 🙂

  • @nigelpaul9496
    @nigelpaul9496 3 หลายเดือนก่อน

    What would happen if the value of A becomes negative. If it comes negative are we able to remove the negative sign by just naming oppositely or do we need to just ignore the negative sign?

    • @vishavkhajuria9809
      @vishavkhajuria9809 12 วันที่ผ่านมา

      we have to ignore the negative sign.

  • @shreyashmuley6462
    @shreyashmuley6462 ปีที่แล้ว

    What after you log in the log book. Do we need to verify that deviation is acceptable or within limits or satisfy with some rules and regulations. What an auditor is checking in this log during inspection.

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      It should be in a range of your deviation card. If you have more than 5 degree of difference you need to get a service for magnetic compass

    • @skruzzdzius
      @skruzzdzius 9 วันที่ผ่านมา

      So if we get for example deviation 11.8E but in deviation card is 3W then we need call service for sure? :)

  • @EnglishMrJack
    @EnglishMrJack ปีที่แล้ว +2

    Good day, I just wanna confirm that small d is 0.8 => it must be plus with Dec, not minus, check again pls

    • @sailorguide
      @sailorguide  ปีที่แล้ว +1

      It will be minus because in Nautical Almanac Value of Declination reducing every hour .... So we will minus the d correction

  • @jobairkhondoker5775
    @jobairkhondoker5775 8 หลายเดือนก่อน +1

    Sir, what's the point of determining the Gyro Error? I mean, you are not using it in any calculation?

    • @sailorguide
      @sailorguide  8 หลายเดือนก่อน

      Its to determine that our gyro is working properly.... Sometimes it can go offset

  • @abdulmuneeb5569
    @abdulmuneeb5569 ปีที่แล้ว +1

    Sir please let me know what p represent here in this video

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      If you know about PZX triangle in principle of navigation... That angle P is the same P here in compass error.

  • @Adityayadav-px2df
    @Adityayadav-px2df 9 หลายเดือนก่อน

    Pls the make video about radar ❤

  • @mohamadfaisal4966
    @mohamadfaisal4966 ปีที่แล้ว

    I believed you mention declination is 13°50.4', but you wrote 13°51.2'. Btw, thanks for your sharing sir.
    Really appreciate that.

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      Thnk you for appreciating my work 🙂

  • @natthaphongsiwiman5639
    @natthaphongsiwiman5639 6 หลายเดือนก่อน

    Thank 😊

  • @rajvardhansinghrathore8414
    @rajvardhansinghrathore8414 ปีที่แล้ว +1

    Sir we have to find compass error always like this

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      Yesss only thing is for stars planet and moon few steps are different in calculation

  • @knittingandstitchingsanjogita
    @knittingandstitchingsanjogita ปีที่แล้ว

    Thank you beta god bless u 🎉

  • @ArkarMyint-g7r
    @ArkarMyint-g7r 3 หลายเดือนก่อน

    Dev = 5.0 E?

  • @JunicerPadayao
    @JunicerPadayao 10 หลายเดือนก่อน

    Why S E of the azimuth?

  • @GyanVigyanarDuniya
    @GyanVigyanarDuniya ปีที่แล้ว

    Sir plz complete the ror

  • @mdganesh5764
    @mdganesh5764 ปีที่แล้ว

  • @YourAashique
    @YourAashique 3 หลายเดือนก่อน

    Watching this on 27th October 2024 at 2218 hours IST.

  • @purnimapurnima2316
    @purnimapurnima2316 ปีที่แล้ว

    Hello bro

  • @Vallygujjar
    @Vallygujjar ปีที่แล้ว +1

    it seems wrong value of variation

    • @sailorguide
      @sailorguide  ปีที่แล้ว

      Yes you need to get into account the variation change from the year of the chart and the present year every year its changing in the video i have not taken that

  • @Didiclimbs
    @Didiclimbs 6 หลายเดือนก่อน +1

    What woud happen to an azimute taken at the PMS using the magnetic Compass? Would it be a viable option if i using the Magnetic compass?
    Great explanation and thank you for disposing your time to make this very informative videos!

  • @Didiclimbs
    @Didiclimbs 6 หลายเดือนก่อน

    What woud happen to an azimute taken at the PMS using the magnetic Compass? Would it be a viable option if i using the Magnetic compass?
    Great explanation and thank you for disposing your time to make this very informative videos!

    • @sailorguide
      @sailorguide  6 หลายเดือนก่อน

      Nothing would happen .... You will be directly able to find magnetic error .... Nd thank you for your appreciation 🙂