How to use the chronometer?

[Valgua]

I've found a lot of threads on the chronometer and I am very confused. Does the chronometer work now (patch 1.4)? If yes, how shall I use it? I've never found any difficulties in SH3 but in SH4 I'm always told that more date are required. What's the matter? I've found range and angle, what kind of data is missing??

[Fincuan]

You sure you need instructions in using this?

http://www1.istockphoto.com/file_thumbview_approve/322787/2/istockphoto_322787_analog_chronometer.jpg

:D

Ps. If you need to know how to use the estimate speed function, then check here http://www.subsim.com/radioroom/showthread.php?t=118522

[Powerthighs]

The crew speed estimation function was broken in SH4 until patch 1.3.

To use it:

1) Make sure the PK is off.
2) Take a range/bearing observation of the target with the stadimeter and send to TDC.
3) Wait a minute or so. The devs said 10 seconds is enough. In real life, longer times would make it more accurate. Not sure how this is modeled in game.
4) Take another range/bearing measurement and send to TDC.
5) Press the estimate speed button.

Your crew will deliver a speed and course estimate in the text box they talk to you with.

[AVGWarhawk]

To go a bit further with what PT said, you can keep taking range estimates and asking for speed of target while the PK is on. Also, the closer you are to the target the better the accuracy of the data. This will give you better accuracy in speed. But, all of this is useless if you have chosen the incorrect vessel from the ID book and as range readings will be off. Make sure your crew is at battle stations.