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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997 |
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#1 |
The Old Man
![]() Join Date: Apr 2005
Location: New Orleans, LA.
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LOL the target was not doing 95 degrees.
95 degrees is easterly... not westerly. Also, if you are pretty much perpindicular and looking "right", you can just do 90 - current bearing to get his AOB. |
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#2 |
Korvettenkapitän
![]() Join Date: Apr 2005
Location: Toronto
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#3 | |
Korvettenkapitän
![]() Join Date: Apr 2005
Location: Toronto
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![]() Quote:
Course was indeed 275 Math should have been TC (275) + TTB (25) -180 = 120 Keep in mind tho that it was backwards math but adjusting the AOB to the right side of view compensated for that mistake.
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#4 |
The Old Man
![]() Join Date: Apr 2005
Location: New Orleans, LA.
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Indeed. I played once after coming home from a night out... and i fell asleep at the desk.
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#5 | ||
Stowaway
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From your post elsewhere:
Quote:
Quote:
Sorry for all the dumb questions, I just havent seen this method before. |
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#6 |
Korvettenkapitän
![]() Join Date: Apr 2005
Location: Toronto
Posts: 918
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Relative Target Bearing or True Target Bearing (TTB) is relative to true North.
So if your Targets bearing via your scope is 45 degrees and your course is 350 degrees his TTB is 35 degrees. In this case lets say his course is 225 degrees When you see him on the left side of your scope at 350 degrees you do the math like this: 225 - 35 - 180 = 10 degrees AOB If his TTB is 15 degrees and his course is 300 then like this: 300 + 15 - 180 = 135 degrees You either add or subtract depending on which side of your boat he is on.
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#7 |
The Old Man
![]() Join Date: Aug 2006
Location: Mountain Ash, Wales, U.K.
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Good luck doing this with Sonar only
![]() By the way, mine's a Crown Royal ![]()
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***THE GENERAL*** |
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#8 |
Korvettenkapitän
![]() Join Date: Apr 2005
Location: Toronto
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Sonar only is kind of useless without a properly working hydrophone. Would you like to see a tutorial showing how I play TMO using only my ears?
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#9 |
Korvettenkapitän
![]() Join Date: Apr 2005
Location: Toronto
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FYI - The mods I had installed during the video.
Most of the overwrites are just readme.txt files. ![]()
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#10 |
Silent Hunter
![]() Join Date: Apr 2002
Location: standing watch...
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very nice video, good work.
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#11 |
Ocean Warrior
![]() Join Date: Sep 2008
Location: Notify command we have entered the Grass Sea
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ddgrn
Hey, ddgrn!! My computer is down, has been and will be for the forseeable future.
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#12 |
Watch Officer
![]() Join Date: Jul 2007
Location: Blackpool, England
Posts: 347
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Superb video for those of us who do not usually use 100% realism, mainly because we don't know how!!
Thank you very much, hope to see more ![]() |
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#13 | |
Stowaway
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![]() Quote:
So just to confirm - 1) I should be marking his postion on map with True Bearing calculations (To North) So therefore I will get his True bearing when I use ruler to join the marks (Good -This is what I have done in past) ![]() True Bearing = My Course + Scope Bearing (target)* *If over 360 then minus 180 to final calculation. 2) If Sub is on the targets port side (Left) then (TTB+ (plus) RB-180 = AOB) -or- If Sub is on the targets starboard (Right) then (TTB - minus) RB-180 = AOB) 3) I also assume that if you alter course then you must recalculate the whole solution? Correct? Thanks so much for this as it will really save me so much time - No more AOB wheels etc ![]() |
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#14 | |
Korvettenkapitän
![]() Join Date: Apr 2005
Location: Toronto
Posts: 918
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#15 |
The Old Man
![]() Join Date: Apr 2005
Location: New Orleans, LA.
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If you really want to do the math with a calculator.......
(Your Course - Target Course) - 180 = Angle On Bow at your nose. If it's negative it's Port, if its positive its starboard. After you get the AOB at your nose.. just add or subtract the number of degrees you are looking to the side. Looking left.. subtract. Looking right... add. .ie Target Course 40 Ownship Course 290. (290-40) - 180 = 70 AOB at your nose. If looking left 30 degrees... subtract 30. .ie 40AOB Starboard. If looking right 30 degrees.. add 30.. ie 100AOB Starboard. example 2: Target course 40 Ownship Couse 150 (150 - 40) - 180 = -70 AOB (remember negative is port) If looking left 30 degrees... subtract 30 .ie -100 AOB Port if Looking right 30 degrees... add 30. .ie -40 AOB Port. just ignore the negative signs on the AOB. That said... doing this with a calculator is totally unecessary. You can just do it by eye once you've practiced it enough. |
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