Quote:
Originally Posted by I'm goin' down
If you do turn off auto update, I assume you have to recalulate range and Aob?
If map contacts are disabled, how to you establish course?
Also, in the sub school tutorial mission I have not been able to get hydrophone readings on the target. Maybe this is a bug in the tutorial. I assume in missions, you can get bearings of targets from hydrophone readings. Is that correct?
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You don't need to recalculate. Remember that once you know the target's AOB you can quickly establish an intercept course by the method described before. In that case you set up a 180 degrees "intercept" course, meaning a parallel one. If however you used 90 degrees instead, you'd be on a 90 degrees intercept course. So, if at any time during your approach you move the periscope by mistake while your autoupdate is OFF, even if you break the AOB, you can quickly reestablish the correct AOB by doing this:
1. move your periscope straight ahead (by pressing the "set view to heading" key)
2. Autoupdate OFF so you can change the AOB
3. in the AOB enter your intercept course value (pay attention to set it correctly port or starboard)
4. turn autoupdate ON again.
Now when you move the periscope over your target you'll be able to see that the AOB is correct. Why? I already explained in the tutorial that:
Intercept Angle = Sub's Course - Target's Course
Intercept Angle = Bearing + AOB
So as long as you and the target don't change course, by zeroing your bearing what you did was: Intercept Angle = AOB
Now, as you move the periscope, the Bearing dial automatically moves the AOB dial to maintain that relation.
I don't understand why you'd need to use the map to establish the target's course. By using your TDC only, you can work in a relative environment, never even looking at your heading.
As for the Hydrophone, my technique depends on you being able to see your target, there are other tutorials that deal with hydrophone hunting. But it is a fact that SH4 and SH5 have big problems with the hydrophone. Even if you can hear a target, sometimes the sonarguy never reports them.