[2][3] The first Iranian destroyer that equipped by 4 Iran-made engines, “Bonyan 4” is Dena.

Also, a Bow thruster system is installed in its front for increasing the maneuverability.

[4] Comparing with its previous same-class frigate, the number of missiles they carry, is significant, Iranian Navy Commander Hossein Khanzadi announced.

For the first time in Iranian navy industry Dena frigate will be equipped with vertical launching system (VLS), he added.

[6] A “Asr” radar is installed on this frigate, covering 360 degrees in range of 300 km around the Dena.