I loked at the search for g
hydrophones but couldnt find anything good:So my question is:How do you know is he going fast and is he geting closer or further??

There's a lot of work learning the sonar. I'll try to answer a few.

Obvious you can go to the sonar stations yourself. You can use the cursor or Home and End keys to move sonar. Over time you'll learn different ships have different sound. You can often hear them switching speed. You've probably figured DD's have a much faster prop whine.

As for distance, I can't remember stock, but you should have several icons for sonar, track nearest warship or merchant. As you track your sonar man will call out bearings, speed and tell you "fast approaching" and other general distances. These become more important when you play with cams and contacts off. I usually track nearest warship when I'm attacking. The problem is you can't trust this. A escort may be in your baffle, rear of your sub and won't be picked up on sonar, not to mention your sonarman often doe's a poor job tracking.

Obvious if you have cams on, you can see what's going on up there and how close ships are, without that cam...it's tough...you know escorts may be near, so do you come up and shoot or not.. One thing that is helpful with cams off is to turn up the sound so you can hear approaching ships. You can hear escorts coming in from about 1000 yards. What really helps is sitting in the con tower and looking up at the ceiling, sound is much clearer. Using your ears you can hear a DD coming and take evasive action.

The best way to get distance is to ping a target. Take command of sonar and focus in on a target. Once you have it, send a sonar ping. The ping travels through the water and will hit the target giving you a return ping. So you send a ping and wait for the sound of the return ping. Once you hear it, you send it to the TDC that second and it will give you range. The further the ship is away from you, the longer it will take for the return ping. Just know if the enemy has sonar they may hear your ping and come a looking. Very dangerous to ping warships and escorts.

Here is a link to a good guide for stock.
http://forums.ubi.com/eve/forums/a/t...4351073726/p/1

Yeah I foung that likn very usefoul.I have some more questions and every day that I play silent hunter i raise more questions.So my next question would be:Can i customize realism in carrer mode??How to do it??

nice sub
 

I suggest you raise new topics in a new thread. Notwithstanding that, when you elect a career, do the following:

In the captain's room at the beginning of the first mission of a career, click on the book on the shelf to your left. That will take you to the option menu screen, where you can customize the settings for the career. You must make the selection of the desired settings at the begining of the career, before you leave port. You cannot change the settings once the first mission of the career is underway, nor can you change settings when you retrun to port to refuel, etc. If you decide you must change the settings once you have left port on the first mission, you are required to start a new career. I hope this answers your question. Rule: Select the desired custom settings in port before you begin the first mission. The selected settings will apply for all missions undertaken in the career.

Hint: Many questions can be answered using the forum search function. There have been thousands of posts by other skippers, and this question, I am quite sure, has been addressed several times previously.

http://www.calculateme.com/Speed/Fee...nd/ToKnots.htm ! 1 foot per sec = 0.59248 knots 1 Meter per Second = 1.9438444924406046 Knot

I can change my realism settings in between patrols at home base any time in my career.....Do it all the time, some patrols I play with cams on, some off, but never had to start a new career.

I agree, I am not sure if you need to use a point or a comma to enter the decimal mark in waypoint speed setting. But fractions certainly can, and do have effect in the game. Just make plots for over an hour or so an you'll see it moves the propper amount further than the truncated speed value.

You may have overlooked this one. This method has been explained more than once in this SH4 section, or the SH3 section. It is sometimes also reffered to as the 3- or 4-bearing method. There are also some video tutorials about it. But this document is the clearest explanation that I can remember:

http://www.subsim.com/radioroom/showthread.php?t=160817

The hydrophone (passive 'sonar') only tells you the direction the sound comes from. You can listen to the noise and determine what sort of ship it is, if it is fast or slow, far or near, but you can't get a clear defined number of knots or nautical miles from it. His course direction is impossible to tell at an instant, as the crew seems to do. You'll have to deduce it from the change in bearing at fixed time steps, together with your own movements. It involves quite some drawing on the map or paper... and patience!, since bearings change quite slowly. The 'why' of it is quite mathematical, but this document is the best geometrical or graphical explanation of it.