The US Navy's Fast-Attack Submarines, Vol. 2: Seawolf Class (SSN-21) and Virginia Class (SSN-774). James C. Goodall, USAF (Ret.). 12" x 9". Successors to the US Navy's Los Angeles–class fast-attack submarines (presented in volume 1), the Seawolf- and Virginia-class SSNs are presented here from their initial design and construction, through testing and trials, to current operations.