SINAVY DC-Prop and SINAVY PERMASYN® Integrated Propulsion Solutions for Submarines

Total Page:16

File Type:pdf, Size:1020Kb

SINAVY DC-Prop and SINAVY PERMASYN® Integrated Propulsion Solutions for Submarines SINAVY DC-Prop and SINAVY PERMASYN® Integrated Propulsion Solutions for Submarines siemens.com/marine Contents History 3 General information 6 General requirements and integration 6 SINAVY SUB 8 Siemens Propulsion Systems for submarines SINAVY DC-Prop 9 SINAVY DC-Prop Type 209 11 SINAVY DC-Prop Type Dolphin 12 SINAVY PERMASYN 13 SINAVY PERMASYN Type 212A 20 SINAVY PERMASYN Type 214 22 SINAVY SUB, references and outlook 23 2 History A long tradition of success In 1877 the Siemens cable-laying ship Faraday was the first ship in the world to be equipped with an electrical lighting system. In 1879 Siemens sold the first electrical installations for ship lighting to be used for three German ships Hannover, Theben and Holsatia. These contracts 135 years ago are regarded as the official start of the Marine activities. In 1886 the Siemens-built Elektra was the world’s first ship with an electrically powered propeller (4.5 kW electric propulsion motor). In 1904 Siemens supplied all the electrical machines for three submarines of the Russian navy and in 1906 for the first German submarine. Since then, for approximately 110 years, Siemens has played a leading role in the design and construction of electric Propulsion Systems for submarines. For decades DC double motors together with armature and exciter current choppers dominated submarine propulsion. In 2000 Siemens delivered the first permanent-magnet synchronous motor with integrated power converters and PERMASYN-type propulsion motor/ drive for a submarine to a yard. The impressive reference list of Propulsion Systems for the last approximately 50 years can be found on page 24. Propulsion Systems for conventional submarines consist of: • A propulsion motor for direct drive of the submarine (directly coupled, without reduction gear) • Inverters/converters for adapting/converting voltages (e.g. choppers or power inverters/converters) • Switchboards for switching and protection of the Propulsion System and ship mains • Propulsion control with open- and closed-loop control functions for monitoring and operation of the Propulsion System components 3 Propulsion System Electrical Distribution Propulsion Inverters/Converters Generator for voltage adaption Switchboard or excitation Propulsion Motor Battery Shaft DC double motor, Protection System PERMASYN motor, Units auxiliaries Main Switchboard AIP Aux. Switchboard, FC Control Board Auxiliary Switchboard Main DC Distribution, Main AC Distribution, Aux. DC Distribution (28 V) Distributors and Propulsion Control Subdistributors 4 Structure of electrical platform technology for conventional submarines SSK Energy Sources EMCS Automation System Auxiliary Systems Diesel Generators Connected to EMCS DC Generators, EMCS Console Trimming, AC Generators Compensating, Compressed Air, Hydraulic, etc. Battery System Stand-alone Systems Lead/Acid, Lithium-ion, Air Conditioning, Battery Monitoring, Degaussing, etc. Battery Cooling, etc. Shore Connection Comm. Bus Other Systems Charging, System DC Mains Grid Process Substations AIP System ILS Fuel Cells Integrated Logistic w/wo DC Converter Support Steering System DC/AC Inverters 115 V/60 Hz 115 V/400 Hz DC/DC Converters 28 V Not Connected to EMCS Lighting System, Comm. System, etc. Communication Power Supply 5 General General requirements information and integration Propulsion Solutions for conventional submarines allow Cutting-edge technologies required the use of stored or generated electrical power supplied Propulsion Systems for submarines are highly specialized directly or indirectly (via batteries) from DC sources such drive and switching plants in the DC low-voltage range as Air Independent Propulsion (AIP) systems for propulsion (up to 1,000 V DC) for high power and heavy short-circuit purposes. In terms of technology, Siemens PEM Fuel Cell loads. or Stirling-based systems are most common today, followed by diesel generator sets, shore connection/charging con- They are designed to fulfill requirements related to the nection, and battery systems. (The state of the art is still application, such as lead-acid submarine battery systems with gel batteries • environment (temperature, humidity, shortly expected to be introduced and Li-ion battery static/transient air pressure) systems under development.) • shock Integrated Propulsion Solutions harmonize interfaces between the dedicated propulsion components for • EMC optimized efficiency under the special environmental • inclinations/heeling (static and transient) conditions of submarines. They form the basis for a highly • signatures, mainly valuable submarine platform with desired features such – noise emission (structure and airborne noise) as long submerged endurance, long cruising range, – magnetic and electric field (nonmagnetic design, extremely silent and to the extent possible undetectable low strayfield) mode of operation, high sprint potency, etc. For details, • heat dissipation please refer to the graphic “Structure of electrical platform technology” on page 4/5. • efficiency 6 • reliability and availability through redundancy and degradation (this involves RMA prediction/calculation/data collection) • volume and weight restrictions • corrosion and coating demands (resistance to seawater, etc.) • ergonomics, illumination • health and safety aspects (avoidance of pollution of the closed atmosphere in the boat; fire detection and extinguishing, etc.) • material and cabling restrictions (e.g., no aggressive-flame products, no PVC) • degree of protection Propulsion Systems for submarines are always designed For the design of Propulsions Systems for submarines and specifically adapted to the submarine boat design, standards and general specifications apply. which means that the propulsion system and boat type Among others, these include: usually form one totally integrated unit. In general, the integration encompasses: • BV (“Bau-Vorschrift” for navy ships issued by German authorities) • Conceptual integration of the entire drive train incl. propeller (speed, torque, output • VG (“Verteidigungs-Geräte”-standard for power, dynamic behavior, etc.) material and tests/procedures) • Mechanical integration (flexible mounting, • AQAP (Allied Quality Assurance Publications) coupling, dampers, positioning, etc.) • IMO (International Maritime Organization) • Electrical integration (cabling, cable connections, • IEC (International Electrotechnical Commission) earthing and grounding, short circuit protection, • DIN ISO (“Deutsches Institut für Normung,” overvoltage protection, etc.) International Organization for Standardization) • Functional integration (monitoring and control, • STANAG (Standardization Agreement) signaling, etc.) • MIL-STD (Military Standard) • EH&S integration into the overall submarine • DEF-STAN (Ministry of Defense, Defense Standard) environment, health, and safety concepts) • V-model (Development standard for IT systems) 7 DC-Prop drive PERMASYN drive SINAVY SUB Siemens Propulsion Systems for submarines High reliability and availability SINAVY PERMASYN For more than half a century Siemens Marine & Ship- For more than a decade, SINAVY PERMASYN propulsion building has been supplying electrical platform equipment, drives have been part of the SINAVY SUB portfolio. Their systems, and solutions for conventional submarines. Today, ongoing enhancements make them the most cutting-edge all Siemens submarine technology products are marketed propulsion technology in the market for nonnuclear sub- under the SINAVY SUB brand name. This includes DC drives marines. Thirty-three of these drives will power the boats like the SINAVY DC-Prop as well as permanent-magnet- of seven navies. Currently there are two basic designs in excited synchronous SINAVY PERMASYN propulsion drives. operation, with an intended expansion to a third design In total, more than 170 submarines have been ordered with having a higher output power for use in submarines SINAVY DC-Prop or SINAVY PERMASYN Propulsion Systems. Type 216. Read more about the presently available designs starting SINAVY DC-Prop on page 13. The principal propulsion system structure of DC motors built today doesn’t differ much from those of earlier motor/ drive designs. Starting on page 9, the two most modern SINAVY DC-Prop examples are presented. 8 SINAVY DC-Prop Design and Function Equipment belonging to (or with a functional connection to) the propulsion system: Designed for the harshest submarine operating conditions, DC-Prop propulsion motors provide excellent reliability and • Partial batteries 1 up to 4 robustness. Resistant to impact and shock, while emitting • Switching equipment partial batteries 1up to 4 noise well under all threshold levels, they are in operation • Charging generators 1 up to 4 in more than 130 submarines. Their fail-safe design con- sists of two separate low-noise double-armature engine • Propulsion switchboard sections, each operating completely independently and • Propulsion motor with a minimum of two power sources. • Propulsion control console The motors run at optimum efficiency across the entire • Automatic speed control speed range from silent mode through cruising speed. • Exciter control Ventilator and cooling units only come online at higher speeds, with their rotation speed and output precisely • Propulsion exciter current chopper aligned to the boat’s cooling requirements. • Propulsion armature current chopper With stepped switching of the armature and its dedicated • Static exciter converter (class 209 only) batteries, and with up to five speed ranges, each
Recommended publications
  • SINAVY DC-Prop and SINAVY PERMASYN® Integrated Propulsion Solutions for Submarines
    SINAVY DC-Prop and SINAVY PERMASYN® Integrated Propulsion Solutions for Submarines siemens.com/marine Contents History 3 General information 6 General requirements and integration 6 SINAVY SUB 8 Siemens Propulsion Systems for submarines SINAVY DC-Prop 9 SINAVY DC-Prop Type 209 11 SINAVY DC-Prop Type Dolphin 12 SINAVY PERMASYN 13 SINAVY PERMASYN Type 212A 20 SINAVY PERMASYN Type 214 22 SINAVY SUB, references and outlook 23 2 Propulsion System Electrical Distribution Propulsion Inverters/Converters Generator for voltage adaption Switchboard or excitation Propulsion Motor Battery Shaft DC double motor, Protection System PERMASYN motor, Units auxiliaries Main Switchboard AIP Aux. Switchboard, FC Control Board Auxiliary Switchboard Main DC Distribution, Main AC Distribution, Aux. DC Distribution (28 V) Distributors and Propulsion Control Subdistributors 4 Structure of electrical platform technology for conventional submarines SSK Energy Sources EMCS Automation System Auxiliary Systems Diesel Generators Connected to EMCS DC Generators, EMCS Console Trimming, AC Generators Compensating, Compressed Air, Hydraulic, etc. Battery System Stand-alone Systems Lead/Acid, Lithium-ion, Air Conditioning, Battery Monitoring, Degaussing, etc. Battery Cooling, etc. Shore Connection Comm. Bus Other Systems Charging, System DC Mains Grid Process Substations AIP System ILS Fuel Cells Integrated Logistic w/wo DC Converter Support Steering System DC/AC Inverters 115 V/60 Hz 115 V/400 Hz DC/DC Converters 28 V Not Connected to EMCS Lighting System, Comm. System, etc. Communication Power Supply 5 History A long tradition of success In 1877 the Siemens cable-laying ship Faraday was the first ship in the world to be equipped with an electrical lighting system. In 1879 Siemens sold the first electrical installations for ship lighting to be used for three German ships Hannover, Theben and Holsatia.
    [Show full text]
  • Type XXI Submarine 1 Type XXI Submarine
    Type XXI submarine 1 Type XXI submarine U-3008 in U.S. Navy service in 1948. Class overview Name: Type XXI U-boat Operators: Kriegsmarine Postwar: French Navy German Navy Royal Navy Soviet Navy United States Navy [1] Cost: 5.750.000 Reichsmark per boat Built: 1943–45 [2] Building: 267 Planned: 1170 Completed: 118 Cancelled: 785 General characteristics Class & type: Submarine Displacement: 1,621 t (1,595 long tons) surfaced 1,819 t (1,790 long tons) submerged Length: 76.7 m (251 ft 8 in) Beam: 8 m (26 ft 3 in) Draught: 6.32 m (20 ft 9 in) Propulsion: Diesel/Electric 2× MAN M6V40/46KBB supercharged 6-cylinder diesel engines, 4,000 shp (3,000 kW) 2× SSW GU365/30 double acting electric motors, 5,000 PS (3.7 MW) 2 × SSW GV232/28 silent running electric motors, 226 shp (169 kW) Speed: 15.6 kn (28.9 km/h) surfaced 17.2 kn (31.9 km/h) submerged 6.1 kn (11.3 km/h) (silent running motors) Type XXI submarine 2 Range: 15,500 nmi (28,700 km) at 10 kn (19 km/h) surfaced 340 nmi (630 km) at 5 kn (9.3 km/h) submerged Test depth: 240 m (787 ft) [3] Complement: 5 officers, 52 enlisted men Armament: 6 × 53.3 cm (21.0 in) torpedo tubes (bow), 23 torpedoes (or 17 torpedoes and 12 mines) 4 x 2 cm (0.8 in) anti-aircraft guns Type XXI U-boats, also known as "Elektroboote" (German: "electric boats"), were the first submarines designed to operate primarily submerged, rather than as surface ships that could submerge as a means to escape detection or launch an attack.
    [Show full text]
  • "Erfindung" Des Ubootes Und Seine Entwicklung Bis Zur Einsatzreife Zu Beginn Des 20
    www.ssoar.info Die "Erfindung" des Ubootes und seine Entwicklung bis zur Einsatzreife zu Beginn des 20. Jahrhunderts Duppler, Jörg Veröffentlichungsversion / Published Version Zeitschriftenartikel / journal article Empfohlene Zitierung / Suggested Citation: Duppler, J. (1999). Die "Erfindung" des Ubootes und seine Entwicklung bis zur Einsatzreife zu Beginn des 20. Jahrhunderts. Deutsches Schiffahrtsarchiv, 22, 23-34. https://nbn-resolving.org/urn:nbn:de:0168-ssoar-59723-1 Nutzungsbedingungen: Terms of use: Dieser Text wird unter einer Deposit-Lizenz (Keine This document is made available under Deposit Licence (No Weiterverbreitung - keine Bearbeitung) zur Verfügung gestellt. Redistribution - no modifications). We grant a non-exclusive, non- Gewährt wird ein nicht exklusives, nicht übertragbares, transferable, individual and limited right to using this document. persönliches und beschränktes Recht auf Nutzung dieses This document is solely intended for your personal, non- Dokuments. Dieses Dokument ist ausschließlich für commercial use. All of the copies of this documents must retain den persönlichen, nicht-kommerziellen Gebrauch bestimmt. all copyright information and other information regarding legal Auf sämtlichen Kopien dieses Dokuments müssen alle protection. You are not allowed to alter this document in any Urheberrechtshinweise und sonstigen Hinweise auf gesetzlichen way, to copy it for public or commercial purposes, to exhibit the Schutz beibehalten werden. Sie dürfen dieses Dokument document in public, to perform, distribute or otherwise use the nicht in irgendeiner Weise abändern, noch dürfen Sie document in public. dieses Dokument für öffentliche oder kommerzielle Zwecke By using this particular document, you accept the above-stated vervielfältigen, öffentlich ausstellen, aufführen, vertreiben oder conditions of use. anderweitig nutzen. Mit der Verwendung dieses Dokuments erkennen Sie die Nutzungsbedingungen an.
    [Show full text]
  • Kriegsmarine Coastal Forces
    K IEGSM~RINE COASTAL FORCES ABOUT THE AUTHOR AND ILLUSTRATOR GORDON WILLIAMSON was born in 1951 and worked for the Scottish Land Register for several years. He spent seven years with the Military Police TA and has published a number of books and articles on the decorations of the Third Reich and their recipients. He is the author of a number ofWorld War II titles for Osprey. IAN PALMER is a highly experienced digital artist. A graduate in 3D design, he currently works as a senior artist for a leading UK games developer. Besides his artistic interests he is also a keen musician and motorcyclist. NEWVANGUARD ·151 KRIEGSMARINE COASTAL FORCES GORDON WILLIAMSON ILLUSTRATED BY IAN PALMER First published in Great Britain in 2009 by Osprey Publishing, Midland House, West Way, Botley, Oxford, OX2 OPH, UK 443 Park Avenue South, New York, NY 10016, USA E-mail: [email protected] © 2009 Osprey Publishing Ltd. All rights reserved. Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright, Designs and Patents Act, 1988, no part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, electrical, chemical, mechanical, optical, photocopying, recording or otherwise, without the prior written permission of the copyright owner. Enquiries should be addressed to the Publishers. A C1P catalogue record for this book is available from the British Library Print ISBN: 978 1 84603331 5 PDF e-book ISBN: 978 1 84603 820 4 Page layout by: Melissa Orrom Swan, Oxford Index by Margaret Vaudrey Typeset in Sabon and Myriad Pro Originated by PDQ Digital Media Solutions Ltd.
    [Show full text]
  • Die Erfindungen Des Wilhelm Bauer 7
    TauchHistorie 11/2019 Die Erfindungen des Wilhelm Bauer 7 Die Erfindungen des Wilhelm Bauer Nachtrag zum Bericht „Verlegen von Unterwasserkabeln“ in der TauchHistorie 04/2015 Von Dieter Harfst Sicher werden Sie sich nach den ersten Zeilen fragen, was Er spricht den bayrischen Unteroffizier Bauer an: 1 hat Wilhelm Bauer mit Kabelverlegung zu tun? Im Allgemei- „Na, wieder bei Ihrem Tauchboot? Funktioniert die Sache?“ – nen wissen wir nur, dass er das erste U-Boot erfunden hat – „Gestern erfolgreich Probefahrt gemacht, Herr Howaldt.“ vielleicht auch noch, dass dieser umtriebige Mann auch der Erfinder eines Tauchgerätes war. Darüber wird nachfolgend „Donnerkiel, dass so ein bayrischer Unteroffizier a.D., so ´ne ver- noch zu berichten sein. deubelte Landratte, mich ollen Sprott eines Besseren belehren will! Mann, wenn ihr Düker 5 tatsächlich arbeitet, ist 1848 ein Beim Stöbern im Internet stieß ich auf einen Bericht, der Wendejahr in der maritimen Geschichte, und sie haben in diesem mich elektrisierte: „Die deutsche Submarine und Napoleon vertrackten Krieg mehr für die Verteidigung der Kieler Förde ge- der Dritte“. tan als unser Universalprofessor Himly 6 mit den von ihm konstru- Nachdem ich meinem Freund Hans-Werner Baurycza davon ierten neuen elektrischen Seeminen.“ erzählte, meinte er: „Da hab´ ich was für Dich: „Die Gartenlaube „Wie wäre es, kann ich ihre Erfindung sehen? – Ah, da liegt der von 1862“. Und auch in meinem nicht ordentlich genug ge- Kahn. Na, von außen der Caisson einer Docktür… .“ führten hauseigenen Archiv wurde ich fündig. Weiter wird von dem Drama der ersten Tauchfahrt berichtet, dass in die U-Bootgeschichte einging: Wie der Stahlfachmann Howaldt meinte, sei das Blech 7 zu dünn, was auch Bauer fest- gestellt hatte – und so kam es wohl, wie es kommen musste: Das Blech war wirklich zu dünn.
    [Show full text]
  • April 1990 June 2017 Issue 1 Issue
    www.SubCommittee.com K?<JL9:FDD@KK<<I<GFIK K?<D8>8Q@E<=FIK?<JL9D8I@E<<EK?LJ@8JK Indexnnn%JlY:fdd`kk\\%Zfd(,%''LJ ALE<)''.@JJL<-0 ISSUE 1 ISSUE 109 APRIL 1990 JUNE 2017 Index to The SubCommittee Report April 1990–June 2017 Guide to This Index The document is divided into two sections: a Subject Index (starting on page 4) and an Author Index (starting on page 44). In both indexes, the subject or author (given in bold print) is followed by the title of the article; then (in bold again) the issue and page number, separated by a dash. For example, 1-10 is Issue 1, page 10; 85-12 is issue 85, page 12; and so on. See the table on pages 2 & 3 for the dates of each SubCommittee Report issue number. This is just a general index in that only article titles and authors are referenced. A normal index would include all references to particular subjects found within articles; that is not the case here. For example, just about any article written on building a model submarine will include a detailed description of the approach taken to constructing the hull or ballast tank, but the subject headings “Hull/Hull Layout” and “Ballast System/Tanks” only list articles that are specifically about those subjects; more, of course, will be found in articles and columns under other subject headings, which include the names of specific submarines and vendors. When there is overlap among topics in an article, it may be listed under more than one subject heading.
    [Show full text]
  • British Submarine Policy 1853-1918 Michael Wynford Dash a Thesis
    y_< I British submarine policy 1853-1918 Michael Wynford Dash A thesis submitted for the degree of Ph. D. at King's College, University of London Department of War Studies 1990 BIBL. LOND[h. .:, UNIV.. ABSTRACT O Abstract The submarine is used as a case study to examine British attitudes to developing naval technology. Study of the Royal Navy's submarine policy suggests that the Admiralty was less conservative and more able than is often supposed. The British were thoroughly conversant with all significant developments in underwater warfare from 1853. There was an early, if abstract, appreciation of the potential of submarine boats, but a distinction must be drawn between adequate technical assessments of early submarines and inadequate appreciation of the strategic consequence of developments in submarine warfare. Development of British policy was greatly influenced by restrictive agreements concerning the type of vessels to be built by the Vickers arms firm, by the character and personal beliefs of successive Inspecting Captains of Submarines, and by the Royal Navy's decision to resume partial responsibility for coast defence from the Army. British experience is put into context by a study of the submarine policies of other powers. The importance of the coastal submarine to Imperial defence is discussed, the patrol submarine's influence on the British policy of blockade is assessed, and the failure to anticipate unrestricted submarine warfare examined. In the final chapter, the performance of RN boats in the Great War is set against pre- and post-war submarine policy. O BRITISH SUBMARINE POLICY 1853-1918 Introduction .......................................... 7 in the text footnotes Abbreviations used and .........
    [Show full text]
  • Ihr Download IQ-Journal 1/2014
    www.iq-journal.de Ausgabe 1/2014 Dieses Thema hat uns bewegt: Mobilität mit Zukunft 4 7 Unser Themenjahr: Viel Erfolg mit Mathe: Wie alles begann und wohin Unser Schreibwettbewerb die Reise gehen könnte geht in die nächste Runde 2013 Sonderauflage zum VDI-Themenjahr 2 iQ-Journal 1/2014 ZUR SACHE Harald Bachem (links) und Josef Thomas, Projektteam „Mobilität 2 editorial mit Zukunft“ Zur Sache 3 titel Liebe Leserinnen und Leser, Die Bilanz unseres Themenjahres wie lässt sich in einem kurzen Text wie diesem hier ein ganzes Jahr zu- Viel Erfolg mit Mathe! sammenfassen? Wir versuchen es so: Seit dem Start des Themenjahres Airbus an der Steckdose? „Mobilität mit Zukunft“ hat sich unser Bezirksverein verändert – weil wir Interview mit Thomas Krause viele unserer Mitglieder dafür gewinnen konnten, an unseren Zielen mit- Sichere und vorsichtigere Fahrzeuge Mobilitätszentrum Wolfsburg zuarbeiten und sich für den VDI Braunschweig zu engagieren. Mobilität 4.0 Wettbewerb für Studierende Ein aktiveres Vereinsleben – das ist das wichtigste Ziel unseres Themen- Imagekampagne des VDI Braunschweig jahres. Welche Fortschritte wir gemacht haben, können Sie in diesem Unternehmerfrühstück mit Funkenschlag IQ-Journal lesen. Das Magazin ist eine Sonderausgabe, wir ziehen darin Die Besten ihres Faches eine erste Bilanz des Themenjahres. Und wir schauen nach vorn auf das, was noch kommen soll. 22 porträt Denn wir sehen das Themenjahr als Triebfeder für eine fortlaufende Ingenieurpersönlichkeit August Howaldt Entwicklung, mit der wir das Angebot unseres Bezirksvereins für seine Mitglieder verbessern und unseren Beruf in Wirtschaft und Gesellschaft stärker zur Geltung bringen wollen. 24 intern Sie möchten die Aufbruchstimmung nutzen und sich einbringen? Sehr Kunststofftrends im Automobil gern.
    [Show full text]
  • The Dolphin Brotherhood Page 2 the DOLPHIN BROTHERHOOD
    US Submarine Veterans Inc. (USSVI ) Volume 5, Issue 3 Seattle Base May-June 2003 British Chariots or “Human Torpedoes” No history of submarine warfare in World War Two could be complete without a mention of the "Human Torpedo" or "Chariot". The she er drama of their story, which could not be revealed at the time, introduced a unique level of selectiv- ity into naval warfare. The target was chosen and plans made well be- fore the actual deploy- ment, when they, just A British "Chariot" or "Human Torpedo" rides on the surface. as their bigger brothers the midget submarines, or X-Craft, The human-torpedo was "expendable"; it were towed into the area by a full- lacked the power to return to the open sized submarine. sea for a rendezvous with the parent sub- (See “Chariot” on page 6) Commander’s Corner by Patrick Householder, Base Commander participation in our April wondered where all my meeting to discuss his emails have been, my service on Russian and hard drive crashed! Nuff Soviet submarines was said. Cliff Nutter and I very well attended. My son were flag bearers in the Adam was inducted into Memorial Day ceremony the US Army that same at Tahoma National day so I was unable to Cemetery, and Bob Opple attend. Darn! The District 9 was the featured speaker meeting was held in at a similar service at Silverdale with attendance Greenwood Memorial of about 1/2 dozen Seattle Cemetery in Renton. The It's been an interesting Base members. The next Foxtrot is starting to look couple of months since our one will be in Portland, OR.
    [Show full text]
  • Early Torpedoes and Their Conservation in the Deutsches Museum, Munich
    I. međunarodna konferencija u povodu 150. obljetnice tvornice torpeda u Rijeci i očuvanja riječke industrijske baštine 187 EARLY TORPEDOES AND THEIR CONSERVATION IN THE DEUTSCHES MUSEUM, MUNICH Dr. Jobst Broelmann Curator of the Maritime Department, Deutsches Museum, Munich, Germany FISH TORPEDOS - LITTLE SUBMARINES The history of the torpedo of Robert Whitehead and his cooperation with Giovanni Biagio Luppis has been outlined in several publications.1 Reflecting the history of the automobile torpedo it may be of some interest to point out some possible connections and links between the ideas of Luppis to the contemporary efforts of the german inventor Wilhelm Bauer. From about the 1850s both inventors had been experimenting with small, unmanned submarine automobile vessels. Bauer had originally the idea to copy and imitate the diving actions of a seal by constructing an “iron seal”, that was to be propelled by human power with the purpose to attach charges to enemy ships. Bauer started with a small model of about 700 mm length before his submarine “Brandtaucher” was built under considerable difficulties without sufficient financial support. The Brandtaucher had a length of about 8 m, and a beam of 2 m. It was propelled by the power of two men which was tansferred via a gear system to a propeller.2 After a severe set back of his “Brandtaucher”, which sank with a crew of three during the first diving experiments in the harbour of Kiel in 1850, he was forced to improve his ideas by again using smaller, unmanned test models. These models had also the purpose of representating his concept to possible supporters, mainly in the european navies of that time.
    [Show full text]