<i>The Command of the Ocean: A Naval History of Britain, 1649–1815</i> By N. A. M. Rodger

Redford, Duncan

doi:10.1111/j.1468-229x.2007.401_32.x

Cited by 2 publications

(3 citation statements)

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“…It provided for the possibility to steer accurately and react quickly to changes in the wind direction, which had a significant influence on the sailing speed. A particularly important feature of the sailing ships developed in the middle of the 17th century was the increase in the number of the front (fore and aft) sails, allowing sailing at a smaller angle to the wind direction, increasing speed made good to windward (Marchaj, 1970(Marchaj, , 2000Harland, 1985;Roger, 2004;Reid, 2017). The so-called East Indiaman also presented a particular vessel type.…”

Section: Speed Analysis Of Sailing Vessels From 25th Century Bce -20t...mentioning

confidence: 99%

“…A ship of the line could be, and often was, fully square-rigged and therefore a frigate with respect to rigging type, as it was the with the giant HMS Victory (length: 69 m; beam: 15,8 m, draught: 8 • 8 m, rigging type: three-masted frigate; sail area: 5,440 m 2 ; displacement: 3,500 t; speed: 8 kn) (Bathe et al, 1967;Mickiewicz, 1971;Batchelor and Chant, 2006;Giorgetti and Abranson, 2007). Another innovation introduced from 1775 onwards that had a significant impact on the speed of sailing vessels was the covering of the underwater part of the hull with copper sheets that prevented it from fouling, which in turn reduced the hydrodynamic resistance (Harris, 1966;Roger, 2004). Hulls also changed their shapes to eventually achieve the slender lines of clipper ships.…”

Section: Speed Analysis Of Sailing Vessels From 25th Century Bce -20t...mentioning

confidence: 99%

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Selected issues of optimising parameters on square riggers to maximise speed

Rafał,

Cezary

2023

J. Navigation

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Due to the exceptional complexity of the propulsion system (sails), square-riggers form a special group of sailing vessels. In modern pleasure and sport sailing, simple Bermuda (triangular) sailing rigging prevails, which is widely discussed in the literature, both in terms of theory and numerous experiments. The literature on the theory on square-riggers is, in turn, limited mainly to the description of good sailing practice developed over the centuries. Its important element was maximising vessel speed, but this discussion has not been documented by scientific research. This paper presents the significant parameters influencing the speed of a square-rigged sailing vessel and selects those which are the most important from the point of view of its maximisation. The paper also proposes methods and measurement systems which optimise selected parameters affecting the achievement of higher speeds. The paper describes the types of speeds of typical sailing vessels, provides a historical synthesis of sailing ships with respect to their speed, and presents a selection and description of the parameters affecting the speed of modern square-rigged vessels. The paper ends with a proposed method and measurement system for experimental research aiming at rigging optimisation in a square-rigged sailing vessel from the point of view of maximising its speed.

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Section: Speed Analysis Of Sailing Vessels From 25th Century Bce -20t...mentioning

confidence: 99%

Section: Speed Analysis Of Sailing Vessels From 25th Century Bce -20t...mentioning

confidence: 99%

Selected issues of optimising parameters on square riggers to maximise speed

Rafał,

Cezary

2023

J. Navigation

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“…Neither can insular expansion be dismissed as an American phenomenon, as other insular powers have acted similarly. During its zenith in the nineteenth century, for example, the United Kingdom possessed a sizable fraction of global economic and military capabilities, and unrivalled command of the seas (Singer, Bremer, and Stuckey 1973;Rodger 2006). As an insular power able to control its own moats, the received wisdom would predict British restraint vis-à-vis other great powers.…”

Section: Insularity and Expansion: The Limits Of The Received Wisdommentioning

confidence: 99%

Revisiting Insularity and Expansion: A Theory Note

Schuessler¹,

Shifrinson²,

Blagden³

2021

Perspect. polit.

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What is the relationship between insularity—a state’s separation from other states via large bodies of water—and expansion? The received wisdom, prominent in (though not exclusive to) realist theories, holds that insularity constrains expansion by making conquest difficult. We contend, by contrast, that this received wisdom faces important limits. Focusing on U.S. expansion via means short of conquest, we interrogate the underlying theoretical logics to demonstrate that insular powers enjoy two distinct advantages when it comes to expansion. First, insularity translates into a “freedom to roam”: because insular powers are less threatened at home, they can project more power and influence abroad. Second, insularity “sterilizes” power, which explains why insular powers are seen as attractive security providers and why we do not see more counterbalancing against them. On net, existing scholarship is correct to argue that insularity impedes conquest between great powers. Still, it has missed the ways that insularity abets expansion via spheres of influence abroad. One consequence is an under-appreciation for the role of geography writ large and insularity in particular in shaping contemporary great power behavior.

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The Command of the Ocean: A Naval History of Britain, 1649–1815 By N. A. M. Rodger

Cited by 2 publications

References 0 publications

Selected issues of optimising parameters on square riggers to maximise speed

Selected issues of optimising parameters on square riggers to maximise speed

Revisiting Insularity and Expansion: A Theory Note

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