Meet the Alfa-Class Submarines Made from Titanium ... at sea meant the submarine was conceived of as a sort of “interceptor,” kept ready at port to dash... Here’s What You Need to Know ...

One of the most unique and interesting submarines was the old Alfa-class nuclear-powered submarine. Known as Project 705 Lyra, the Alfa-class was meant to push the boundaries of undersea speed ...

Russia’s Alfa-class submarine, with its unique titanium hull, is but one example of this Russian submarine prowess. These boats can cruise over 40 knots (46 miles per hour).