Reflections on the Balance of Traditional Sailing Vessels

The balance of sailing vessels makes an important contribution to sailing characteristics, but its measurement is far from trivial. Traditionally, balance has been determined from the geometric centres of hulls and sails, but experimental results show that this approach is highly inaccurate. Designers overcome this difficulty by the use of a heuristic concept of 'lead', but the geometric methodology can be misleading in retrospective analysis of ancient sailing vessels. It can result in doubtful conclusions about sailing capabilities and incorrect deductions about the type of rig that was used and the reasons for specific mast positions.
© 2008 The Author     

Windward Sailing Capabilities of Ancient Vessels

Weatherliness is widely considered to have been an important ability for ancient sailing vessels, yet little firm experimental or theoretical data on the matter is available. However, by drawing on a variety of sources of model-test data and trials of full-scale replicas, it is possible to establish a general picture of what might have been possible. It appears that while ancient sailing vessels may have been capable of modest windward performance in moderate conditions and with a freshly-cleaned hull, this capability quickly disappeared as the hull became fouled and/or the wind and sea conditions deteriorated.
© 2008 The Author     

And Now They Are Gone: documenting the last sailing lighter of Nevis,West Indies

The island of Nevis in the eastern Caribbean was until recently home to a unique traditional‐built sailing lighter. The last two working vessels were hauled out for the last time only in 2001. The lighters of Nevis have a rich history and were built without plans, conforming to traditional proportions and practices. One of these vessels was carefully documented by the author in the grounds of the Horatio Nelson Museum in Charlestown before it completely succumbed to the elements. The vessels have since deteriorated and are gone. The maritime legacy of Nevis and the lighters are described. © 2012 The Author     

Sailing and Sailing Rigs in the Ancient Mediterranean: implications of continuity,variation and change in propulsion technology

Ships and boats form the foundations of the maritime connectivity that is a central part of our understanding of the ancient Mediterranean. While the general chronological sequence of sail and sailing‐rig development is well established, the implications are less‐well discussed. This article sets out how sails and sailing rigs developed in antiquity, with emphasis on the Greco‐Roman world. Subsequently, instances of innovation are defined. Why specific pieces of maritime technology were, or were not, widely adopted is considered. Long‐term technological continuity can be comprehended, and a shared maritime culture of sailing in the ancient Mediterranean is suggested.     

Sailing the Bremen Cog

The 14th-century Bremen Cog is the only near-complete representative of a type of large ship with a single square-sail which dominated North European waters for c. 200 years. The evaluation of sailing properties, seaworthiness, potential and characteristics of two replicas is made by professional seamen who have taken them to their limits. Their judgements need to be recorded now, or they will be forgotten especially as systematic tests and sea-trials have been limited and documentation lost. The replicas' captains' expert opinion on the Bremen Cog as a sea-going vessel is a rare case of long-term evaluation of a large-scale experimental-archaeology project.
© 2009 The Authors     

The Mediterranean Lateen Sail in Late Antiquity

The Mediterranean lateen sailing rig has been studied since the early-to-mid-20th century. Recently-published depictions of sailing vessels rigged with lateen and settee sails, dating to the late-antique period, allow some of the principle characteristics of that rig to be established. This allows comparison with lateen- or settee-rigged vessels from both earlier and later periods. The sailing rigs depicted on other vessels can be identified and the level of technical continuity between the late-antique and medieval Mediterranean addressed. Finally it is possible to assess the extent to which the lateen sail was established in the Mediterranean by late antiquity.
© 2009 The Author     

帆船时代福州国际贸易初探

福州是福建省会,帆船时代福州国际贸易是"海丝"文化的重要组成部分,其特色是以朝贡贸易为主。福州官方主导的朝贡贸易始于后汉,发展于唐五代,明清时期福州作为郑和下西洋重要基地和中琉朝贡贸易唯一官定港口而鼎盛。郑和船队驻泊长乐和中琉贸易定点福州,奠定了福州在海外贸易史上的历史地位。国际贸易兴盛带动港口建设,贸易港从福州内河向滨江滨海发展,先后出现东冶港、甘棠港、河口港、太平港、马尾港等名港,成为"海上丝绸之路"的核心港和出发地之一。福州人有精湛的帆船制造技术,熟知天文地理,并掌握高超的航海技术。他们从事海外贸易,穿洋过海、贸迁四方,形成代代相传的海洋文化传统,这是福州国际贸易发展的重要人文因素。     

Gyptis: Sailing Replica of a 6th‐century‐BC Archaic Greek Sewn Boat

A sailing replica based on the archaeological remains and structural analysis of the 6th‐century archaic Greek sewn boat Jules‐Verne 9 was built in Marseille as part of the city's European Capital of Culture 2013 programme. Full‐scale reconstruction allowed investigation of specific aspects of the methods used to build a shell‐first, sewn‐plank, and lashed‐frame vessel, as well as learning the gestures and know‐how of the original shipbuilders. The first two seasons of sailing trials, including short journeys in the Bay of Marseille and longer, coast‐hopping expeditions, reflecting the uses of the original vessel have taken place and are reported here.     

Sailing the Pepper Wreck: a Proposed Methodology for Understanding an Early 17th-Century Portuguese Indiaman

Discovered in 1993 at the mouth of the Tagus River, the SJB2 shipwreck—or ‘Pepper Wreck’—was tentatively identified as the Portuguese Indiaman Nossa Senhora dos Mártires, lost on its return voyage from Cochin, India, on 14 September 1606. Following archaeological excavation and a tentative reconstruction of the ship's hull and rigging, the next step is the study of its structural strength and sailing characteristics using the tools of modern naval architecture. This paper presents a methodology for investigating the sailing and structural characteristics of the ‘Pepper Wreck’, combining archaeological, iconographic and contemporary written sources with modern naval architectural calculations. © 2005 The Authors     

The Potential Performance of Ancient Mediterranean Sailing Rigs

A common statement in the academic literature relating to the ancient Mediterranean is that the lateen/settee rig superseded the Mediterranean square‐sail because it provided superior upwind performance, greater manoeuvrability and higher overall speed. This statement has been repeated so often that it is now commonly accepted. Research by the author sets out to develop an insight into the relative performance of both types of rig, based on historical sources, ethnographic records and the performance of representative, full‐size sailing vessels. This allows a reassessment to be made of the underlying reasons behind the adoption of the lateen/settee rig in the Mediterranean. © 2010 The Author     

Distinguishing different types of early 17th-century Dutch Jacht and Ship through multivariate morphometric analysis of contemporary maritime art

In research to reconstruct the design of a small Dutch vessel of c . 1600, morphometric analysis of ship iconography proved very useful. Both uni-variate and multi-variate modes of statistical analysis, as used in this research, are described and discussed. Four classifications of three-masted, square-rigged Dutch sailing vessels—ships, jachts, large jachts and small jachts—were shown to be clearly distinguished types in the multi-variate data space.     

Ancient Sounding-Weights and Navigation along the Mediterranean Coast of Israel

Underwater archaeological investigations in Israel have recovered scores of sounding-weights of varying shapes, weights and ages. Sixty-three examples kept in Israel Antiquities Authority collections are described in detail, discussed, and placed in a tentative typology of sounding-weight types from the Israeli coast. Finds from shipwreck assemblages enabled dating of some types. Integration of the topography and hydrography of the Israeli coast with site-formation processes provides a theoretical explanation for the high number of weights recovered from Israeli underwater sites.
© 2009 The Authors     

Heritage Sailing in Australia: a preliminary schema

Distinguishing between replica and restored sailing vessels in terms of their emphasis on heritage and sailing and between the intellectual and kinaesthetic appreciation of heritage produces a simple classificatory schema. Using this schema enables one to distinguish stationary exhibits, ?museum? vessels, sail training vessels and commercial vessels. The schema suggests several research areas for further enquiry.     

Kelenderis Ship—Square or Lateen Sail?

The Kelenderis ship appears in a harbour scene frame that forms one-third of a mosaic floor (the other two-thirds are decorated with geometric patterns). The name of the ship indicates its location, the town once called Kelenderis, in Turkey. The large sailing ship is depicted with a fully-open quadrilateral sail. No anchor or mooring line is indicated, but its static position suggests that the vessel is at anchor. The purpose of this paper is to clarify the intricate type of sailing rig. The Kelenderis ship was researched in detail for the first time by Zaraza Friedman in her 2003 PhD dissertation.
© 2006 The Authors     

Reviews

Book reviewed in this article:
Ancient trade and society LIONEL CASSON
Underwater expeditions ROB PALMER
Vol. I. Merchant sailing ships 1775–1815: sovereignty of sail DAVID R. MACGREGOR
Vol. III. Merchant sailing ships 1850–1875: heyday of sail DAVID R. MACGREGOR
Sweet track to Glastonbury—the Somerset levels in prehistory BRYONY and JOHN COLES
Die Galeonen PETER KIRSCH
La grande époque de la marine à voile MARTINE ACERRA and JEAN MEYER
Argusgrunden—a 7000-year-old settlement on the sea-floor off south-east Denmark A. FISCHER, U. MØHL, P. BENNIKE, C. MALMROS. H. TAUBER, J. SCHOU HANSEN and P. SMED
La révolution maritime du XIXe. Sièle
Warrior —restoring the world's first ironclad ANDREW LAMBERT
The immortal Warrior —Britain's first and last battleship JOHN WELLS
Drawings of the USS Monitor —a catalog and technical analysis ERNEST W. PETERKIN
Ships, seafaring and society—essays in maritime history TIMOTHY J. RUNYAN
Sejlskibsssfolk (sailing ship people) OLE MORTENSØN     

Analysis of the Gulf of Mexico’s Veracruz-Havana Route of La Flota de la Nueva España

During colonial times, an active maritime trade existed between Spain and the New World, with convoys sailing annually to and from Mexico and returning via Havana, Cuba, after wintering in America. A database constructed from secondary and open sources revealed that Spanish vessels were sailing over open waters along a northern path near Louisiana and a southern path across the central Gulf of Mexico. These routes were traversed in about one month and scheduling for the convoy was based on an understanding of the Americas’ meteorological and oceanographic climate. However, other factors may also have been involved in the directional layout of the routes. Today these ancient routes crisscross planning areas for oil and gas lease sales in the US Exclusive Economic Zone and the information presented in this article may aid in identifying areas where historic shipwrecks may lie. Maps and documents found during this study helped piece together the evolution of our understanding of the Gulf of Mexico surface circulation and how this knowledge influenced sailing during colonial times.     

Coastal villas, maritime villas; a perspective from Southern Britain

The coastal siting of Romano-British villas is generally discussed and attention is particularly focused on the Channel seaboard of Britain. Here, comparison is made with the distribution of those natural harbours and offshore anchorages that have been traditionally favoured by sailing craft. These are clearly described in the first edition of Hobb’s British Channel Pilot of 1859. A relationship is proposed between the rare incidence of leeward anchorages and the siting of villas at Folkestone, Eastbourne, Sidlesham, Weymouth and Honeyditches. Other villas with significant maritime settings are identified at Southwick, Fishbourne, Emsworth, and Brading all of which adjoin harbours or ‘roads’ identified by Hobbs. In the Eastern Solent, anchorages at Spithead, Mother Bank and Cowes Roads are equated with the Magnus Portus described by Ptolemy. At this location some supportive evidence is offered by Roman ceramics recently recovered from the seabed. Attention is also drawn to maritime themes in the mosaics at Fishbourne, Brading and Low Ham where the chosen mythological scenes appear to be an overt expression of contemporary nautical preoccupations.     

Sailing virtual canoes across Oceania: revisiting island accessibility

Understanding sailing conditions is a basic requirement for understanding the two periods of settlement of the distant islands of Oceania, initially from the Bismarck Islands off New Guinea as far as Samoa and later from Samoa throughout East Polynesia. The question of a “navigational threshold” between these two worlds is the focus of this paper. A computer simulation is presented that quantifies the difficulty of sailing virtual canoes in the differing wind conditions in both areas. The model demonstrates substantial differences in ease of voyaging up to and beyond Samoa. That this measure is so markedly different between these two worlds gives support for the hypothesised pause between the discovery and settlement of islands West and East of Samoa.     

Four Scandinavian ship graffiti from Hagia Sophia

Abstract

This paper is the first presentation of four graffiti from the church of Hagia Sophia, Constantinople, and a contribution to the study of Viking graffiti of sailing vessels.