Re: So you really want to go fast...

[Dave Riddle <dave@microworks.net>]

Both the Sierra class and the Alfa class were built with titanium alloy hulls.
There were 4 Sierras and 7 Alfas in addition to the Mike for a total of 12
titanium alloy subs.  For information see:
http://www.bellona.no/en/international/russia/navy/northern_fleet/vessels/index.html


>As for the titanium-hulled subs, there were only three, AFAIK, two of the 
>Sierra class, and only one of the Mike class, and the latter sank after 
>only six years of service (1983-1989).