Submarine Romeo Romei is the 4^th unit of the Todaro class (U212A type) submarine, built in Italy by Fincantieri Shipyard for the Italian Navy.

Submarine Romei is a medium-sized boat, realized to perform a wide spectrum of open-water and littoral missions, characterized by the employ of innovative technologies that allow advanced performances, especially in the stealth range/endurance and signatures.

Romei is built in non-magnetic high-strength steel and equipped with an Air Indipendent Propulsion system (AIP) based on fuel cells using hydrogen and oxygen and a diesel-electric power plant (diesel generator + batteries).

The Integrated Telecommunications System allows to perform from VLF to SHF frequencies. The Sub is equipped with improved surface and subsurface detection sensors compared to the previus submarine units: sonar CSU 90-138 manufactured by ATLAS ELEKTRONIK employing medium and low frequency arrays CAS-FAS-PRS and TAS, periscope system SERO400 (attack periscope) and OMS100 (search optronic mast, non penetrating hull), automatic radar detection and tracking system (ARPA) based on Kelvin & Hughes radar KH2007, AIS automatic identification system.

The Kongsberg MSI-90U Mk2 Command and control system allows tactical link 11 and link 16 data exchange, electronic navigational systems (ECDIS, WECDIS) and can perform the launch and wireguide of the new heavyweight torpedo made by Leonardo Defense Systems (BSA/black shark Advanced).

The BSA is a multimission weapon, technologically advanced with performances much greater than the other weapons belonging to the same category, in Italy and abroad.

The capabilities of Romei are perfectly adherent to the requirements of the Italian Navy. The Romei is capable to accomplish many kind of missions such as the control of maritime traffic lanes, the control of illegal activities at sea, the surveillance of national interest and choke points etc. allowing her to perform expedictionary missions in different operational theaters.

The 212A 2^nd batch subs (Venuti and Romei), in comparison with the 1^st batch units (Todaro and Scirè), are characterized by:

• increased range/endurance
• new more performing sonar system 
• improved communications system
• weapons system based on the new Leonardo black shark advanced (B.S.A.) torpedo.

 
According to all these characteristics the Todaro class 2^nd batch submarines (type 212A) can be considered the most advanced and powerful submarines never realized for the Italian Navy and, at present day, among the most technological advanced non-nuclear powered submarines in the World.