New lobo do mar

[Erich Topp U552]

Hi all fellow [shadow=red,left,300]SEE WOLFS[/shadow]
Finally i get the game(this great game)because only day 18/4 it was for sale here in portugal i love sim´s i have il2-aep-pf great game too dont u think the only sub sim´s that i play was Enigma but did not like it because it was too easy not like SH3 .
There for i have a question it is for now the only one how do u calculate the angle of bow(aob) on the periscop view or in the uzo,sry about the dum question but hope that someone can help me.

[shadow=red,left,300]SALUT and HAPPY HUNTING[/shadow]

[Dominico Baggio]

For the angle of bow this is how i do it, imagine yourself standing on the enemy ship and looking out to your Uboat. Now on the notepad drag the arrow in that same direction! Easy.

Hope that helps

Here is a scientific drawing

[Venge]

Awesome drawings!
need to post these up on your site Dom
Thing is, they save several pages of trying trying to explain what you mean!

[Muto]

Dominico has it spot on ... the AOB is the angle between the course of the target and the line-of-sight, or bearing, of your u-boat from an observer on the target.

The formula for calculating Angle on the Bow is:

AOB = 180 - TC + TBn
If AOB>360, then subtract 360

Where
TBn = Target Bearing from North
TBn = TB + C
If TBn > 360, then subtract 360
C = U-boat course
TC = Target Course

So, you can't just 'tell' from the Uzo or Periscope what the AOB is. You first must determine the target's course (and while you're at it, you should find its speed as well). The best way to do that is to eyeball the target's path and match it by sailing parallel to that course. If you see the target off your port bow and it appears to be moving left to right away from you at approximately 45 degrees, just add 45 degrees to your current heading and set that as your new heading in your compass. This won't be exact but it's a good way to approximate the enemy's course so a) you stay out of visual range so the target doesn't start zig-zagging on you; b) you stay within range of making an attack once you've computed your firing solution; and c) you buy yourself time to make the necessary calculations.

Now, note the bearing of the target's bow from your u-boat in the Uzo or periscope (note that if you're using the lock feature you will be centered on the hull and won't need to take the bow bearing), and use the mast height of your target to determine range. Start a stopwatch and write those values down. Go into the nav map and use the marker tool to place 1 mark at your location and a second mark at the target's location using the ruler tool in the nav map (make sure you're zoomed in for more accurate measurements).

At about 2:50 after starting the stopwatch, go into periscope or Uzo and note target's bearing (bow mark again if doing manually) and range again. Go back to your nav map and place another mark at your current u-boat location plus one at your target's location given the bearing and range you just took. Measure the distance the target has travelled over three minutes, and calculate its course and speed.

Change your u-boat's speed and course to match that of the target.

Now calculate the AOB.

The TBn (Target Bearing from North) is simply the target's bearing from a line due north of your u-boat, and is calculated by simply adding your course to the target's bearing, i.e. TB + C. If the answer is greater than 360, subtract 360 from the result . So, if you are sailing on heading 60 degrees, and target's bearing is 315 degrees, then TBn = 315 + 60 = 375, 375-360 = TBn of 15 degrees.

Now, use the formula for AOB:

180 - TC + TBn

Let's assume the course you obtained for the target using your two time marks above is 50 degrees, so:

AOB = 180 - 50 +15
AOB = 145 degrees

where a positive AOB is starboard, and a negative AOB is port, and always lies in the range -180 < AOB => 180.

Hope that helps.