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Originally Posted by Kapitan
Project 705 Lira (7 built) NATO Code name Alfa initially rated to 900 meters, later on cracks were found in the hull which meant they were restricted to 450 meters, these submarines could sustain 42 knots with a burst speed of 45 knots for a short period, their main draw back was their 5 bladed screw and they made more noise than a Metallica concert.
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You not right. Depth limit was 700 meters or 2297 feet. Maximal speed was 41 knots. And subs was silence like Kilo submarine. What you write about noisy was special. In few orders submarine must very nisy so covert other submarines go. After receive order submarine 705 project go in depth few then 100 meters an start flank speed. Start very noisy and US SOSUS system can not detect other submarines with less noisy. But in normal Alfa subs was silence like Kilo class so use electric motors.
Quote:
Originally Posted by Kapitan
The next type of titanium submarine was the Project 945 & 945A class (2 Barracuda and 2 Kondor class or NATO code name Sierra I & II) they look similar to the Project 971 Akula's but are much heavier their weapons are the same similar speed profiles and acoustic dampening and here is the difference while the steel hull of the Akula allows for diving to around 550 meters the Titanium hull of the sierra's allow it to go much deeper 850 meters.
How strong is that hull? why not ask the 1992 crew of the K-276 Kastroma, while submerged the Kastroma collided with the Los Angeles class submarine USS Baton Rouge SSN 689 the damage to the Baton rouge was deemed so severe the vessel was deemed uneconomical to repair and scrapped, the Kastroma suffered Minor damage to her sail and now wears a kill star.
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So it is submarines now so depth diving is secret.
Quote:
Originally Posted by Kapitan
Other titanium boats include the lone Project 661 Anchar whc=ich holds the worlds fastest sustained under water speed record at 44.7 knots this is her back end just prior to her scrapping.
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Papa depth was 400 meters or 1312 feet.