So I have always been confused about this, not the concept, just where to get CDMVT from. Compass Deviation Magnetic Variation True then use GET- Gyro East Error (Add) True . For example what compass do you use for Compass in CDMVT? Magnetic is obviously the standard compass and true is gotten from …

bensmiata, It’s a tool… Example1: How can you quickly tell if your gyro has shit the bed…CDMVT. If your Dev. if drastically +/- than what your Dev. table states…something is wrong then. Example2: TVMDC…Wow, I bet that just blew your mind:) Hope that helps. Cheers, BlueNose

So I have always been confused about this, not the concept, just where to get CDMVT from. Compass Deviation Magnetic Variation True then use GET- Gyro East Error (Add) True . For example what compass do you use for Compass in CDMVT? Magnetic is obviously the standard compass and true is gotten from…

[quote=Siberfire;10344]C- Compass on the boat. Normally PSC (per standard compass) one that is outside of the pilot house (to decrease potential deviation) D- Deviation induced from the ship itself, the steel hull, electronics, etc. Deviation is different for each and every ship. M- Magnetic is wh…

LOL, the gyro is used to obtain a True heading. You just need to CORRECT it to True (that is, take into account Gyro Error, which should be known) To get compass can either just look at your compass, but I wouldnt use it to chart with, you have to CORRECT the compass reading to get magnetic (you ca…

True Virgins Make Dull Companions, Add Whiskey (add west) :slight_smile:

My bad, I thought you understood how calculate Can Dead Men Vote Twice and just wanted to know when to apply in real life situations. You need to open up Pub 9 or 226.

I like “[B]T[/B]rue [B]V[/B]irgins [B]M[/B]ake [B]D[/B]ull [B]C[/B]ompany” +[B]W[/B]iskey". Hey, my instructor was female what else can I say. :wink:

Maybe I should leave those compass error questions on the 3rd Mate exam for a while…

LOL, that is so much better than our… True Virgins Make Dull Companions, At Weddings As a side note, my good friend a female cadet (read this as a smoking hot blonde) is also a big whiskey drinker. We will have fun with this one!

Bring them on! If you have ever met the nav instructor Bobby Mason at GLMA you know that we will know our corrections… or die of boredom trying!

CDMVT and Compass Error

Maritime Academy

jdcavo March 19, 2009, 9:04pm 13

You can always send us new material, if it’s good, we’ll use it. But don’t just send us a question and an answer. The hard work is coming up 3 good wrong answers. Of course even giving us a question alone is more work than complaining.

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CDMVT and Compass Error

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