PLA PROJECT 705 and 705K (ALFALIRA CLASS) - Nuclear Powered Attack Submarines (SSN). Speed (Knots) : 1441 (World's fastest and deepest diving submarine). Armament : o 6533mm bow TT (20 torpedoes (VA-111 or 21 SS-N-1581R) or 24 mines); o ? 650 mm (12 SS-N-16Vodopad ).