Про современные натовские дизелюхи ничего конкретного нет, но есть много дифирамбов их малозаметности и хайтечности Например, вот выдержка из статьи под названием "Подводные лодки в миротворческих операциях".
Thus, the diesel/electric submarine will figure prominently amongst the threats to maritime operations in the next century. Submarines using their inherently stealthy nature can operate even in areas where there is overwhelming opposing naval superiority, given the difficulty of locating them in a highly noisy environment.
На страничке бывшего амеровского подводника нашлась фраза типа: "потомки "Альбакора" служат в ВМС США с середины 70-х по сей день". А "Альбакор" был экспериментальной субмариной, на которой отрабатывались меры снижения шумности, испытывались С/Ц аккумуляторы, новые электродвигатели.
...а официально последние дизелюхи выведены из строя ВМФ сша в 70-х гг...
И ещё кое-что про амеровские шпионские дизельные ПЛ
The same features which enhance conventional deterrence also play an important role in intelligence collection. The ability to cruise undetected close to hostile shores demonstrates the utility of these vessels. During the height of the Cold War, American submarines were able to penetrate the ports of some of the Soviet Union’s most sensitive naval installations, conducting signals and electronic intelligence, as well as photographing the undersides of Soviet submarines.[60] Submarines would be able to perform similar missions in a peacekeeping context, complementing the intelligence resources available to a naval or a ground force commander.[61] Further, such missions might be able to collect intelligence unavailable by other means. Satellite overflights can be planned for as long as the orbital periods are known. High altitude aircraft, such as the TR-1 and SR-71 are highly scarce resources which may not be available on short notice. Further, these and other aircraft may be detected, thereby warning the opposition that they are being watched. A submarine’s stealth avoids these problems. No other platform has the ability to covertly track, identify, and monitor vessels in fog conditions.[62] Bottomed out submarines could conduct long range and long term intelligence operations in strategic waterways with little likelihood of being detected.