SSP Pod Approved For Service

Tuesday, December 07, 1999
After more than two years of development and successful performance trials at Howaldswerke-Deutsche Werft AG in Kiel, the Siemens-Schottel Propulsor (SSP) consortium was granted approval for the new SSP marine propulsion system. Classification society Det Norske Veritas was responsible for technical acceptance of the propulsion system for worldwide service. The SSP is the result of a successful cooperation between two German marine industry stalwarts, Siemens Marine Engineering Subdivision and Messrs Schottel of Spay. Work began in 1997 on the development of a marine propulsion "pod" system that would be offering not only economic advantages, but superior technological performance. The pod-type propulsion system features an electric motor housed in a pod or nacelle suspended beneath the hull of a vessel, and providing direct drive to a propeller of propellers. The fact that the pod can be rotated about its vertical axis too, so that it points in any required direction, means that the system also performs a steering function. The power output of the unit tested at the shipyard amounts to 7MW, which corresponds to 9,510 hp. Similar type pod systems have already been adopted for technically advanced uses, and have been specified and operational aboard such high value vessels such as cruise ships. The system is particularly interesting for the cruise ship market because its twin screws produce low noise and vibration levels to ensure passenger comfort. Siemens, one of the world's foremost suppliers of electric marine propulsion systems, provided a permanent-magnet motor, which has permanent magnets attached to the rotating rotor. The design of the permanent-magnet motor has been undergoing development and testing for the past 12 years and is now ready for general use, including by the Germany Navy. The Propulsor employs the patented "Twin Propeller System" developed by Schottel GmbH. The principle of the design is to share the propulsive power between two screws so that it is possible to employ propellers with a lower specific loading and very high efficiency which, as well as producing less noise and vibration, also allow significant savings in energy consumption to be made. The SSP comes in sizes from 5,000 to 30,000 kW.
Maritime Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

RS at SEA JAPAN 2014

Russian Maritime Register of Shipping (RS) was the only Russian company to take part in SEA JAPAN 2014 exhibition and conference – one of the major exhibitions of the maritime industry.

Havyard to Build Hybrid Battery Arctic PSV

Norway's Havyard says it has signed a contract for the construction of a Havyard 833 WE ICE platform supply vessel with Fafnir Offshore HF. The vessel is to be

GE Gas Turbines Power USS America

GE Marine reports that the United States Navy’s future USS America (LHA 6) amphibious assault ship recently completed successful acceptance sea trials powered by two GE LM2500+ marine gas turbines.

Ship Sales

Kvichak-built Hovercraft for Sale

The 95’ BHT-150 hovercraft SUNAX, built by Kvichak Marine Industries and owned and operated by Aleutians East Borough, is for sale through public competitive bid.

Litigation Can Cost Shipbrokers an Arm & a Leg

A survey of London solicitors by specialist intermediaries insurer ITIC has highlighted the high cost of litigation for shipbrokers and others seeking judgment in the English courts,

Scorpio Tankers' Latest Sale & Purchase Deals

Scorpio Tankers says it recorded a gain of US$51-million from the sale of the 7 VLCC newbuilding contracts announced earlier. In March 2014, the Company received

 
 
Maritime Contracts Maritime Standards Naval Architecture Navigation Offshore Oil Pod Propulsion Port Authority Ship Repair Ship Simulators Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1054 sec (9 req/sec)