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A Voyage of Navigational Investigation

Published online by Cambridge University Press:  21 October 2009

Michael Richey
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Abstract

During the summer months of 1994 the yacht Jester undertook a seagoing investigation into some of the navigational problems that would have confronted the Portuguese discoverers of the thirteenth and fourteenth centuries returning to mainland Portugal from the coasts of Africa and the Atlantic archipelagos. The investigation was made at the suggestion of the maritime historian D. W. Waters to illuminate one aspect of how astronomical navigation was first introduced at sea in the west.

Keywords

1. History.2. Dead reckoning.3. Astro navigation.

Information

Type
Research Article
Information
The Journal of Navigation , Volume 48 , Issue 3 , September 1995 , pp. 349 - 360
Copyright
Copyright © The Royal Institute of Navigation 1995

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References

REFERENCE

1Randies, W. G. L. (1993). The alleged nautical school founded in the fifteenth century at Sagres by Prince Henry of Portugal, called the Navigator. Imago Mundi, 45, 20.CrossRefGoogle Scholar
2Waters, D. W. (1988). Reflections upon some navigational and hydrographic problems of the XV century related to the voyage of Bartolemeu Dias, (monograph) Lisbon.Google Scholar
3Waters, David (1992). Columbus's Portuguese inheritance. The Mariner's Mirror, 78, 385.CrossRefGoogle Scholar
4Lewis, D. (1978). The Voyaging Stars.Google Scholar
5‘Ha Ilha de porto sancto estaa em trimte et dous graaos et tres quartos de huum graao’. Quoted by Taylor, E. G. R.. This Journal (1961), 14, 193.Google Scholar
6Lecky, S. T. S. (1881). Wrinkles in Practical Navigation (revised edition by Cobb, G., 1956), 102.Google Scholar