Don't move your sub too much, it only depletes fuel, and don't go into straits but stay just outside of them to increase your contact chances.
Going into a strait when you think a lot of ships can pass it is not only dangerous for you because of less maneuvering possibility against escorts who may even trap you coming from both sides of the strait, but it will also deny you to detect those ships which are outside (additionally, the landscape may limit your radar and sonar), so better be outside, you won't miss the ships coming out and you will spot more ships that want to go in.
And don't move too much unless you want to intercept a contact which you get from a radio report. This will be difficult if the contact is far away because the data you get in the report will not stay as is, ships will change their general course at some point (unknown to you). Always make a good guess where a convoy is heading to, which port, which strait etc. Also be aware that most task forces will be faster than your sub, you only have 1 chance to get in good position for firing.
A so-called 'search pattern' is only useful to do for an area in which you know for sure a convoy or ship is transiting, it's not useful to do to make chance contacts, you can then as well stop your engines and wait.
US subs can make sonar detection of ships while on the surface, this is greatly exagerated in SH4 and doesn't reflect reality, but it works, meaning you don't need to dive to listen for possible contacts lol...
I hope these ideas heip,
XS
Last edited by XenonSurf; 06-25-20 at 09:10 AM.
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