sentences:  The Nahang 1 has a surface search radar and communications masts, which make it unsuitable for harbor infiltration, but good for reasonably clandestine mine-laying.It is said to be a sonar-evading stealth submarine.Iranian officials claim the Nahang is equipped with state-of-the-art electronic equipment and can fire missiles and torpedoes simultaneously, but no information was given on the range of these weapons.