Intercepting submerged

[j4ckkn1fe]

So I have been doing fairly well in career mode and the war is starting to pick up. I have decided to hunt in well trafficked waters I.E. BF 13-15. It's getting harder and harder to intercept targets while surfaced and I have been checking out some tutorials on intercepting while submerged.

I am using OLC GUI and going along with "passive sonar approach revisited". At one point they say to use SACF to get the AOB of the target. I am having difficulty finding it in OLC. Once I have it I can get the true bearing to target.

Also on a side note...How do I activate the compass ring around the angle protractor tool? I just have a cross hair to place angles. I have read in multiple places to press the ? on the map but I don't have one with OLC GUI installed.

Thanks for the help!! This community rocks even though I have been a lurker :P

[Pisces]

Enable this little mod with JSGME and you get the compass scale on all tools.

http://www.subsim.com/radioroom/show...postcount=1308

As for the SACF, it realy is the American version of the German 'Angriffscheibe' ('Attackdisk'). So it's a different thing which you'll find in SH4 mods. But yeah, same thing in practice, it calculates between relative bearing, true bearing AOB and own course. The button to get it to the front is the knob on the right above the message bar.

[Pisces]

Note:

There is also the 'Range and AOB finder' which is sometimes confused with the Attackdisk. It is the rotating wheel thingy that replaces the stadimeter. It can be used to calculate the range and AOB based on horizontal and vertical measurements of the target and ID-ed mast-height. But in itself it cannot calculate the true bearing for you.

[j4ckkn1fe]

Oh sweet thanks! So it really is the same thing? Alright I will try to mess around with it and see if I can figure it out. I have already been doing manual TDC so If I can understand that I can hopefully do this :P

[j4ckkn1fe]

So I have been reading that I need the reverse side of the attack disk to determine speed and there is no reverse side. So I need another mod or is there another work around?

Right now I am just using the basic BDU surface intercept then when getting close I submerge and use the basic strategy to get closer.

I mean finding the true course of the target would be very useful in intercepting. I just keep making lines and getting more accurate the more lines I make.

Basically what I am asking is, how do I determine the targets AOB just from hydrophone bearing readings to be able to get a true course?

[sublynx]

Hydrophone usage:

1. Google Kuikueg's four bearing method
2. Over in the SH3 downloads section there's a file called Canovaro's Document Collection. It contains Raduz's hydrophone hunting tutorial which is partly outdated but still usable.

The attack disc reverse side:
- try Magui F or Widescreen MaGui SA 3.4. It's based on OLC Gui. ( Unfortunately the front side of the attack disc in those mods does not have the Vorhalt indicator, though)

[Pisces]

Originally Posted by j4ckkn1fe

..
Basically what I am asking is, how do I determine the targets AOB just from hydrophone bearing readings to be able to get a true course?

Almost forgot. I made my own sliderule for this. Makmak94 included it in his Magui mods.

http://www.subsim.com/radioroom/showthread.php?t=147719

Forget the note about 'angle on relative motion'. It causes more confusion than it clears up. Just go as slow as possible, dead stop if you can. Or if you must have speed to keep depth, head slowly in a direction towards the initial hydrophone bearing. (but keep rudder amidship! Make sure you are not turning while you are waiting for the bearings)

And very important is to stay patient during the process. The longer the period between the bearings, the more reliable or precise the AOB will be.