greetings Iam new I have random questions pop up after seconds and minutes. for me Iam a flight simmer who is enjoying dcs and high fidelity models like f-86. I played sh4 and found out its like flight simming its just with much more time and you can chill in your boat.

so long I have some questions which I cant solve with the internet so easily.
1.economic drive in a balao class (or similiar subs) under water
whats best speed in knots for economic drive in a balao class (or similiar subs) under water or a persicope depth?
2.how much does the battery weight in balao class?
3.should I dive after encountering enemy no military like sampans and downed them with the deck gun?
4.How does the radar on the left side work? And how does the the radar range settings work. was is the benefit of raising sd mast and lowering it?
5.is there a benefit when searching with one sweep?
6.Iam somehow confused with the radar in many aspects. How does the range thing work? 60000yards is 55km. i somehow spot sometimes not with the range setting of 60000yards a ship and spot it on lower range setting.
Why is there no decoy deploy options? I reed they had 2 decoys one floating periscope and one lol I forget.
(iam playing with THEBERBSTERS Mega pack) its cool