OH i see now thanks the sonar equpiment would pretty much pick up anything in the ocean you just had to distingquish which ship or sub was friend or foe it seems like overall the russians really werent that far behind us in technology and towards the end of the cold war there subs were really quit like ours they had alot of the same technology weopons sonar and so on though we had more accomadations then them theres werent ment for that when you went to the B-39 what was the biggest differnce you saw in that then in the Uss Blueback?
The B-39 was smaller inside. The crew's and officer's accommodations were very spartan. Very little was built in for comfort. The Blueback had outstanding accommodations (as did the rest of the Sub Fleet compared to the Soviets). We had much more room in our sleeping quarters. The crew's mess area, where we ate and congregated for movies, meeting and games, was palatial in comparison to the B-39.
In addition to that difference, the Blueback was an extremely quiet boat. Whereas the boats like the B-39 were louder and easier to pick up.
The soviets realized their shortcomings and later made huge advancements in their submarine design and the equipment used on board. They were as good as a lot of the US fleet eventually.