After few tryings I finally come to this solving:
;NumberOfCrew5=10
;Interval1_5=5.1
;Interval2_5=6.5
;Interval3_5=13.7
NumberOfCrew5=10
Interval1_5=30
Interval2_5=30
Interval3_5=30
Above text is from main.cfg file.
I try to put different values as described in previous post, but didnt get it to work.
Then I try this solution;
NumberOfCrew5=10
Interval1_5=5.1
Interval2_5=6.5
Interval3_5=13.7
And voila everything start to work !
So now I am a happy Kauleiten and sailing the seas with 6 torpedos reserved for Tommies.