![]() ![]() I would guess, although I don't know for sure, that the LVA won't be installed on the Seawolfs for either weight or arrangement reasons. The LVA has vector hydrophones, which offer substantial improvements in sensitivity. The South Dakota and other Virginias will have the Large Vertical Array, which consists of two panels that wrap around the hull on either side. Most Virginias (and 688Is) have the WSQ-9 active intercept system, which probably cannot be mounted on the Seawolfs because the tips of their stern planes move. However, the Virginias have some sonars that the Seawolfs don't have. Thus the performance of the sensors that both classes have in common (passive bow array, towed arrays, WAA, LCCA) are probably comparable. The ARCI systems on both the Seawolf and Virginia classes are frequently upgraded, so I doubt that from the software side there is a large gap in capability. The other advancements have been to sonar. Since the baseline Virginia was designed to be as quiet as the Seawolf, it is not unreasonable to assume that machinery and propulsor advancements make the newest Virginias quieter than the Seawolfs were when they were new. The new rotors are seem to be mostly hybrid designs (meaning the blades are connected at their tips) and possibly composite. There have been a number of improved rotors for the propulsors. In particular, one of the components of the South Dakota Improvement Program - first tested on SSN 790, applied to Block V, and backfit on some older Virginias - is quieter machinery. In terms of the acoustic signature, there have been improvements throughout the production run of the Virginias. I will try to speculate as little as possible one can find much of the information below in SECNAV budgets. USS Razorback - SS 394 - Little Rock AR.Veteran's Crisis Lineġ-80 or text "start" to 741-741 Museum Submarines If you don't have any documents you can request a board to verify knowledge.a photo of you in uniform showing pins (Dolphins).Official awards showing your qualification.Message your verification info to The Chief Why Submarines are called boats and not called ships - /u/Vepr157 ![]() We are the subreddit dedicated to every machine under the water. "A billion dollar house, and the roof leaks.” - Submarine Mechanic Proverb ![]()
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