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Дата 03.11.2014 20:38:13 Найти в дереве
Рубрики 11-19 век; Флот; Версия для печати

Все-таки на основаниитого отчета нельзя делать слишком сильные выводы

Дело, как я понял, начинается с вот этих цифр

http://vif2ne.ru/nvk/forum/0/archive/2634/2634816.htm

Было бы интересно понять, какие именно материалы сравнивались в отчете. Т.к. технологии на месте не стояли и могли сильно отличаться географически и от верфи к верфи.

Вот что пишет сэр Джордж Холмс в книжке "Ancient and Modern Ships, Part I. Wooden Sailing-ships"

In addition to the increase in dimensions, much improvement was made in the same year in the interior arrangements, and in the preservation of the timber of which ships were constructed. Up till this period both thick stuff and planks were prepared by charring the inner surface while the outer surface was kept wet, and this process was continued till the plank was brought to a fit condition for bending to the shape it was required to take. In this year, however, the process of stoving was introduced. It consisted in placing the timber in wet sand and subjecting it to the action of heat for such time as was necessary in order to extract the residue of the sap and to bring it to a condition of suppleness. In the year 1726 the process was favourably reported on by two of the master shipwrights in their report on the state of the planking on the bottom of the Falkland. Some of the planking had been charred by the old process, some stoved by the new, and the remainder had been neither stoved nor charred. The stoved planks were found to be in a good state of preservation, while many of the others were rotten. The process remained in use till 1736, when it was superseded by the practice of steaming the timber. The steaming and the kindred process of boiling remained in vogue during the whole of the remainder of the era of wooden shipbuilding. In 1771 the rapid decay of ships in the Royal Navy once more caused serious attention to be paid to the subject of the preservation of timber. It was, in consequence, arranged that larger stocks of timber should be kept in the dockyards, and that line-of-battle ships should stand in frame for at least a year, in order to season before the planking was put on. Similarly, frigates were to stand in frame for at least six months, and all thick stuff and planking was to be sawn out a year before it was used and stacked, with battens between the planks, so as to allow of the free circulation of the air. Similar regulations were put in force for the beam pieces, knees, and other portions of the ships.

Короче, дело может быть не в дискриминации дубов по видовому признаку, а в транспортировке и обработке.

ша-ба-да-ба-да фиА...