B3-VH-21-D osition see pages to Article No LP Ty Bevel-helical gear reducer B3

Flender/Flender Gear Units/Bevel-helical gear reducer B3

onstruction of the Howaldtswerke-Deutsche Werft (HDW) has been commercially vindicated in its bold move to adopt fuel cell technology as the basis for the air-independent propulsion (AIP) system in new generation of submarines. HDW has long history providing advanced submarines, including this Deutsche Marine Klasse 2 (" 1"), delivered in 2. 2A-class, following on from the suc- cessful 2 type, was entrusted by the German navy to HDW and Emden builder Nordseewerke, two of the three partners in the German Submarine Consortium. Cooperation between the German and Italian defense ministries in submarine procurement has led to the design being licensed to Fincantieri for two 2A newbuilds for the Italian Navy. In addi- tion, the convincing benefits of fuel cell- propulsion have led to orders for fol- low-on design, the Type 2, from Greece and Korea. The first of four Greek 2s was launched in April this year at HDW' Kiel premises, and the subsequent three newbuilds have been entrusted to Hellenic Shipyards, HDW' Greek subsidiary. Three Type 2s for service with the South Korean Navy are to be built by Hyundai Heavy Industries. The performance of the AIP system in the 2 design has been increased with two Siemens PEM fuel cells producing 1-kW per module. The German Submarine Consortium, which includes Ferrostaal of Essen besides HDW and Nordseewerke, has also this year landed contract calling for two 2PN-class submarines, plus an option on third vessel. As with the 2A and 2 types, the 2PN employs air-independent propulsion arrange- ments founded on fuel cells. In addition, HDW has opened the way to retrofitting class 2 conventional submarines with fuel cell propulsion. The Greek Navy has seized the opportu-nity, and has entrusted refitting of such syst