Hostname: page-component-84b7d79bbc-l82ql Total loading time: 0 Render date: 2024-07-31T23:17:34.841Z Has data issue: false hasContentIssue false
  • English
  • Français

VI—Speed Prediction for the Dyna ship

Published online by Cambridge University Press:  23 November 2009

P. Schenzle
Get access Rights & Permissions [Opens in a new window]

Extract

This paper reviews the research carried out at the University of Hamburg on the predicted performance of the Dyna Ship, a project for an advanced sailing merchantman. The proposed rig incorporates a series of unstayed hollow rotatable masts with terylene sails set along aerodynamically curved yards. The masts and sails are handled hydraulically by remote control from the wheelhouse.

Sailing ship research at the Institut für Schiffbau (IfS) of Hamburg University probably began with a paper presented by Thieme to the Schiffbautechnische Gesellschaft (S.T.G.) in 1955 on the mechanics of sail propulsion. When during 1961–6 the Hamburg Research Council promoted a broad research programme on wind forces on ships, covering all current modern ship types, the opportunity was taken to include also the problems of wind propulsion. This part of the investigation was especially stimulated by an inquiry by Wilhelm Prolss, who proposed a new height-restricted wind propulsion system for large ships in line with modern technology and aerodynamics, now known as the Dyna Ship.

Type
The Practicability of Commercial Sail
Information
The Journal of Navigation , Volume 30 , Issue 2 , May 1977 , pp. 196 - 200
Copyright
Copyright © The Royal Institute of Navigation 1977

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Thieme, H. (1955). Mechanik des Segelantriebes, Transaction of the Schiffbautechnische Gesellschaft.Google Scholar
2Wagner, B. (1967). Windkräfte an Überwasserschiffen S.T.G.-Jb., s. 226–50.Google Scholar
3Wagner, B. (1976). Sailing-Ship Research at the Hamburg University, Sympos. Liverpool Polytechnic 1975, February.Google Scholar
4Wagner, B. (1967). Fahrtgeschwindigkeitsberechnung für Segelschiffe The Prediction of the Speed of Sailing Ships (Transl. by Liverpool Polytechnic), Marz.Google Scholar
5Prolss, W. (1967). On the Economic Possibilities of Wind-propelled Merchant Ships (paper presented to S.T.G.).Google Scholar
6Schenzle, P. (1976). Comparative Sailing Speed in Wind Propulsion, Symp. on the Technical and Economical Feasibility of Commercial Sailing Ships, Liverpool Polytechnic, 1976.Google Scholar
7Olesen, P. B. (1975). Vindkraft til oceangående Fartøjer, thesis, Copenhagen, Juni.Google Scholar
8Sparenberg, J. A. and Wiersma, A. K. (1976). On the Maximum Thrust of Sails by Sailing Close to the Wind, Journal of Ship Research, Vol. 20, No. 2 June.CrossRefGoogle Scholar
9Nance, C. T. (1976). Has the time come for the re-birth of Sail? Second Intern. Conf. on Hovering Craft, Hydrofoils, Advanced Transit Systems, Amsterdam.Google Scholar
10Blume, P. (1977). Beaufort 5—Reffen oder nicht? Speed calculations for sailing yachts. Die Yacht.Google Scholar
11Wellicome, J. (1975). A broad appraisal of the economic and technical requisites for a wind driven merchant vessel. Meeting of the Small Crafts Group of the R.I.N.A.Google Scholar