Quote:
Originally Posted by Obelix
In this case, it seems to me that this is cheating! This greatly simplifies life so easy and it was not for the German submariners. Does hydrophones that time could give such accurate results? Personally, I doubt it! The most that can hydrophone - so this issue bearing on the target and determine zoom in touch. And it is largely dependent on the acoustics. Only at the end of the war became possible attacks without the use of the periscope, which focused exclusively on the hydrophone.
Here you are talking about what can be done attack without use of periscope! That is, this action is transplanted us into the XXI boats in the scin of VII, IMHO.
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Well not really he was using active sonar and that tech was pretty accurate even back then. Measuring distance was easy. Just send out one, maybe a few, sound pulse(s), and see how long until you receive it back. velocity=distance/time => time=distance/velocity
Tho ur right, until the XXI using active sonar was very risky for regular subs, as potential escorts could easily pick up the signal.