Yes, sometimes the choice is the ultimate one and easy: or the Trawler go down of the U-Boot go down, this small tenaciuos ships are sometimes very hard to destroy, and his posibilities of detection..., ayayay...That remember me the guy in the Sonar of the Los Angeles Class in the film "The Hunt of the Red October"; he detect you very far if you have the bad idea to accelerated a little from the 2 knts of Silent Running...,funny thing because this crafts were in general not equipped with Asdic or hydrophones
