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[设计理论] 太平洋印度洋沿岸货运帆船

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发表于 2020-6-12 16:03 | 显示全部楼层 |阅读模式

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utube上的货运帆船,老式渔船帆船,不少有意思的船型,造船也没必要为了追求速度盯着竞技类船型造啊
Traveling on Sailing Cargo Ship Kwai to the Most Remote Islands in the World.mp4.jpg videoplayback.webm_20200606_064807.182.jpg
https://www.bilibili.com/video/BV1Xk4y1B7H9/
https://www.bilibili.com/video/BV1kg4y1i7wQ/

https://www.bilibili.com/video/BV14g4y187oN/
https://www.bilibili.com/video/BV1VJ41197np/


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 楼主| 发表于 2020-6-14 02:59 | 显示全部楼层
本帖最后由 ying99 于 2020-6-14 03:13 编辑

cutty_sark_clipper_1869
https://de.wikipedia.org/wiki/Cutty_Sark

Länge über alles (Lüa): 85,35 m (280' (ft.))
Länge Galion–Heck (Rumpflänge): 64,77 m (212' 6")
Länge an Deck (LaD): 62,8 m (206')
Länge in der KWL (LWL): 60,2 m (197' 6")
Länge zwischen den Loten (LzL, LPp): 58,5 m (192')
Breite: 11 m (36')
Raumtiefe: 6,7 m (22' 6") (Schiffsinnenmaß)
Seitenhöhe: 7,8 m
Tiefgang: 6,4 m (21')
Vermessung: 963 BRT (Bruttoregistertonnen) / 921 NRT (Nettoregistertonnen)
Verdrängung: 2.700 tons / 2.747 t (Schiffsmasse 1.079 tons/1.096 t inkl. Ladung) max. bei 6,4 m Tiefgang
Ladekapazität/Tragfähigkeit: 1.672 tons / 1.700 t (1 tn.l. = 1,016 t) max.
Segelfläche: 3.000 m² (43: 16 Rah-, 4 Stag-, 4 Vor-, 18 Leesegel, 1 Besan); Länge Großrah: 23,7 m (78'); 1885 Reduktion auf 24 Segel ohne Lee- und Skysegel
Masthöhe: 46,3 m (152'; Masttop–Deck), später 44,5 m (145' 9"); Länge des einziehbaren Klüverbaumes (inkl. Bugspriet) 18,3 m (60')
Hilfsmaschinen: keine
Baukosten: £ 20.223 (M 404.460 = $ 96.300; heutiger Wert (2014): 10.000.000 GBP)
Besatzung: 28–35 Mann
Höchstgeschwindigkeit: 17,15 kn
Bestes Etmal: 363 sm

Cutty_Sark_clipper_ship.jpg QQ图片20200614025539.png 线型图,一张15m,压缩上传




Cutty Sark was ordered by shipping magnate John Willis, who operated a shipping company founded by his father. The company had a fleet of clippers and regularly took part in the tea trade from China to Britain. Speed was a clear advantage to a merchant ship, but it also created prestige for the owners: the 'tea race' was widely reported in contemporary newspapers and had become something of a national sporting event, with money being gambled against a winning ship. In earlier years, Willis had commanded his father's ships at a time when American designed ships were the fastest in the tea trade, and then had owned British designed ships, which were amongst the best available in the world but had never won the tea race. In 1868 the brand new Aberdeen built clipper Thermopylae set a record time of 61 days port to port on her maiden voyage from London to Melbourne and it was this design that Willis set out to better.[8][9]
It is uncertain how the hull shape for Cutty Sark was chosen. Willis chose Hercules Linton to design and build the ship but Willis already possessed another ship, The Tweed, which he considered to have exceptional performance. The Tweed (originally Punjaub) was a frigate designed by Oliver Lang based on the lines of an old French frigate, built in Bombay for the East India Company as a combination sail/paddle steamer. She and a sister ship were purchased by Willis, who promptly sold the second ship plus engines from The Tweed for more than he paid for both. The Tweed was then lengthened and operated as a fast sailing vessel, but was considered too big for the tea runs. Willis also commissioned two all-iron clippers with designs based upon The Tweed, Hallowe'en and Blackadder. Linton was taken to view The Tweed in dry dock.
Willis considered that The Tweed's bow shape was responsible for its notable performance, and this form seems to have been adopted for Cutty Sark. Linton, however, felt that the stern was too barrel shaped and so gave Cutty Sark a squarer stern with less tumblehome. The broader stern increased the buoyancy of the ship's stern, making it lift more in heavy seas so it was less likely that waves would break over the stern, and over the helmsman at the wheel. The square bilge was carried forward through the centre of the ship.[8][10] Cutty Sark was given masts that followed the design of The Tweed, with similar good rake and the foremast on both placed further aft than usual.[11]
A contract for Cutty Sark's construction was signed on 1 February 1869 with the firm of Scott & Linton, which had only been formed in May 1868. Their shipyard was at Dumbarton on the River Leven on a site previously occupied by shipbuilders William Denny & Brothers. The contract required the ship to be completed within six months at a contracted price of £17 per ton and maximum weight of 950 tons. This was a highly competitive price for an experimental, state-of-the-art vessel, and for a customer requiring the highest standards. Payment would be made in seven instalments as the ship progressed, but with a penalty of £5 for every day the ship was late. The ship was to be built to Lloyd's A1 standard and her construction was supervised on behalf of Willis by Captain George Moodie, who would command her when completed. Construction delays occurred when the Lloyd's inspectors required additional strengthening in the ship.[12]
Work on the ship was suspended when Scott and Linton ran out of money to continue. Rather than simply liquidate the company, an arrangement was made for Denny's to take over the contract and complete the ship, which was finally launched on 22 November 1869 by Captain Moodie's wife. The ship was moved to Denny's yard to have her masts fitted, and then on 20 December towed downriver to Greenock to have her running rigging installed. In the event, completing the ship meant the company's creditors were owed even more money than when work had first been halted.[13]
Cutty Sark's length was 212 feet 5 inches (64.74 m), with a draft of 21 feet (6.40 m) and a deadweight of 921 tons.[14] Broadly, the parts of the ship visible above the waterline were constructed from East India teak, while American rock elm was used for the ship's bottom. The stem (15 in × 15 in (38 cm × 38 cm)) and sternpost (16.5 in × 15 in (42 cm × 38 cm)) were of teak while the rudder was of English oak. The keel was replaced in the 1920s with one constructed from 15 in (38 cm) pitch pine.[15] The deck was made of 3.5 in (8.9 cm) thick teak while the 'tween deck was 3 in (7.6 cm) yellow pine. The keel (16.5 in × 15 in (42 cm × 38 cm)) had on either side a garboard strake (11 in × 12 in (28 cm × 30 cm)) and then 6 in (15 cm) planking decreasing to 4.75 in (12.1 cm) at 1/5 the depth of the hold. Teak planking began at approximately the level of the bilge stringer. The hull was covered by Muntz metal sheeting up to the 18 ft (5.5 m) depth mark, and all the external timbers were secured by Muntz metal bolts to the internal iron frame.[15] The wrought-iron[16] frame was an innovation in shipbuilding. It consisted of frames (vertical), beams (horizontal) and cross bracing (diagonal members).[17]
The diagonally-braced iron frame made for a strong, rigid ship;[17] diagonal members prevent racking (shearing, where frame rectangles become parallelograms).[18] Less working and leaking of the hull meant less crew time spent pumping, allowing more time to be spent on changes of sail.[citation needed] The wrought-iron-framed hull also took up less cargo space than an all-wood hull would have done.[17] The Muntz metal sheeting reduced fouling of Cutty Sark's hull;[16] with a cleaner hull, she could sail faster.[19]

cutty_sark_clipper_1869.part3.rar

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cutty_sark_clipper_1869.part1.rar

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