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     

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     

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.     

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A common statement in the academic literature relating to the ancient Mediterranean is that the lateen/settee rig superseded the Mediterranean square‐sail because it provided superior upwind performance, greater manoeuvrability and higher overall speed.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     

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     

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 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     

Learning to sail the Duyfken replica

The rig of the Duyfken 'replica', a reconstruction Dutch jacht of c . 1600 is described. Sail-handling techniques and sailing performance including steering with a whipstaff are also described. Experiments to improve sailing efficiency, some prompted by analysis of contemporary iconography, are discussed.     

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.     

The 19th‐Century Akko 1 Shipwreck,Israel: hull‐construction report

The Akko 1 shipwreck was found in 4 m of water inside the ancient harbour of Akko, Israel, and was fully recorded under water. Several hull‐components were retrieved and documented on land, as well as all the finds. The results of the archaeological research and the study of the historical background suggest that the Akko 1 shipwreck is the remains of an eastern Mediterranean naval auxiliary brig, built at the end of the first quarter of the 19th century, and sailing under the Egyptian flag. The ship was apparently wrecked during the 1840 naval bombardment of Akko. © 2012 The Authors     

泉州湾宋代海船保护40年回顾、现状与分析

泉州湾宋代海船的保护是我国上海洋出水大型古沉船保护的先例,具有自己的特点。泉州宋船使用先复原再经4年多缓慢自然阴干脱水的方式成功地保存了船体,而早期保护未脱盐及复原时使用大量铁钉给后期保存带来了严重破坏性后果。目前,船体经过40年的保护,整体结构基本稳定,但由于难以彻底解决早期保护遗留的问题,在开放式的保存条件下,其长期稳定保存难以实现。因此,综合现状与保护分析,从控制船体保存环境入手,尽可能抑制或延缓各种物理、化学与生物作用,是当前阻止船木继续劣变,延长船体寿命的最有效可行的途径。     

Neo in Oceania

Between 1790 and 1830, Hawaiian chiefs built, purchased or otherwise acquired a fleet of Westernstyle sailing vessels which they used to transform various aspects of Hawaiian culture, including military engagements, tribute collection, inter-island commerce and status competition. A list of 41 such vessels with known names is presented, but historical records point to the existence of dozens of other such ships whose names have not been identified. These data allow for the estimation of economic investments made by chiefs in the purchase of ships, and document a trend in which the earliest Western-style vessels were built locally, only later to be replaced by a tendency to buy foreign vessels. Issues pertaining to power, agency, colonialism and indigenous self-determination in the transformation of Pacific cultures are discussed.     

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。     

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.     

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.     

The 'Mardi Gras' Shipwreck: Results of a Deep-Water Excavation, Gulf of Mexico, USA

The 'Mardi Gras' Shipwreck is the remains of an early-19th-century sailing vessel lost in approximately 1220 m of water in the Gulf of Mexico. A recent archaeological investigation documented the wreck and recovered several artefacts, including glassware, ceramics, navigational instruments, a cannon, and a stove. Analyses of these artefacts and the surviving hull have led to preliminary conclusions on the nature of the vessel and its crew.
© 2009 The Authors     

A 9th-century Arab or Indian shipwreck in Indonesian waters

The article describes in some detail the structural features of a 9th-century shipwreck that was recently found in Indonesian waters. The principle features of the wreck include planks joined by stitching with wadding inboard and outboard of the hull, a sharp bow with little rake, stitched-in frames, through-beams stitched to the hull, removable ceiling planks, a keelson and stringers, and a composite iron and wood anchor. These characteristics are shown to be those of ancient Arab and Indian vessels. Identification of several timber species confirms that the ship was constructed in the western Indian Ocean region. The cargo provides strong evidence for China as the place of lading. © 2000 The Nautical Archaeology Society     

Examining dispersal mechanisms for the translocation of chicken (Gallus gallus) from Polynesia to South America

DNA sequencing and radiocarbon dates from the archaeological site of El Arenal-1 (Arauco Peninsula, south central Chile) suggest that Polynesians may have introduced chicken (Gallus gallus) to South America prehistorically (A.D. 1300–1420). The Chilean specimen identified has the exact same amplified mtDNA pattern as samples recovered from archaeological sites in Samoa and Tonga, but is only one base different from prehistoric chicken samples from Tonga (n = 1), Niue (n = 1), Easter Island (n = 1 of 6), and Hawai'i (n = 1). To examine the possible dispersal mechanisms of chicken between Polynesian islands and the Americas, we conducted computer simulations of seafaring from these six island groups and the Tuamotus, as well as return voyages. Simulation results from sailed vessels suggest that in certain months, landfall on the Pacific Coast of South America from Samoa and Tonga was fairly successful at around 40% (particularly in March for the former and January/February for the latter). For Niue, sailed vessels were 21% successful in January with only 2% success in December. Sailed vessels from the Tuamotus (a proxy for closer island groups to the west with evidence for chicken such as the Cook Islands) were successful in January and December, with 15% and 23% of the vessels making landfall in South America. Vessels sailing from all simulations heading east from Easter Island resulted in landfall. Hawai'i had only a 1% success rate if sailing in January, but high numbers of vessels reached southern Mexico and Central America in August and September. Most landfalls occurred much farther north than Chile, in Ecuador and Peru. Unsuccessful voyages from all of the islands other than Easter Island and Hawai'i often made landfall on islands to the east. Return voyages from Chile were not possible or extremely rare during most times of the year. Overall, seafaring simulations suggest that Polynesians may not have initially landed in close proximity to El Arenal-1—contemporaneous or even earlier archaeological evidence of translocated chicken remains may indeed be found further north. In addition, if Polynesians found it difficult or impossible to return to their homeland, the possibility exists that co-mingling between Polynesians and South American groups resulted in offspring that carried an admixture of genetic traits.