British Admiralty Navigation Chart - Japan, Fukuoka Wan - Kyushu - North Coastwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty, navigation chart

A sailing block is single or multiple pulleys with one or more sheaves that are enclosed in an assembly between cheeks or chocks. In use, a block is fixed to the end of a line, to a spar, or a surface. A rope line is reeved through the sheaves, and maybe through one or more matching blocks at the far end, to make up what's known as a tackle. The purchase of a tackle refers to its mechanical advantage. In general, the more sheaves in the blocks that make up a tackle, the higher its mechanical advantage. The matter is slightly complicated by the fact that every tackle has a working end where the final run of rope leaves the last sheave. More mechanical advantage can be obtained if this end is attached to the moving load rather than the fixed end of the tackle. Various types of blocks are used in sailing. Some blocks are used to increase mechanical advantage and others are used simply to change the direction of a line. A ratchet block turns freely when a line is pulled in one direction but does not turn the other direction, although the line may slip past the sheave. This kind of block makes a loaded line easier to hold by hand, and is sometimes used on smaller boats for lines like main and jib sheets that are frequently adjusted. A single, large, sail-powered warship in the mid-19th century required more than 1,400 blocks of various kinds and sizes. An item from an old sailing vessel from the late 19th to early 20th century, unfortunately, the item cannot be identified as to what vessel it belonged to. It does however give an insight into a piece of sailing equipment that's design is still in use today on pleasure sailing craft. Wooden closed spelter double rope block with two pully's between sheaves, block has metal frame around outside of the sheaves and 4 metal pins, 2 each side of the frame at top and 2 at bottom, joining the sheaves together. The shaft between the sheaves is also wooden. Remnants of orange and black paint on outside of block. Shafts are chipped, wood has borer holes. (NOTE: Block was rediscovered after relocating objects to new storage area)Noneflagstaff hill, warrnambool, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, sailing ship, pulley, block, sheave, ship equipment, rope block, sail rigging

British Admiralty Navigation Chart - Borneo - Taganak to Tawi Tawi-warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty

British Admiralty Navigation Chart. Cabra I. to San Fernando Pt and Dilasak B to St. Miguel Bwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, cabra i. to san fernando pt and dilasak b to st. miguel b

British Admiralty Navigation Chart - South Eastern Group of the Ellice Islandswarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty, navigation chart, south eastern group of the ellice islands

British Admiralty Navigation Chart - California - San Pablo and Suisun Bays including Mare Island and Carquinez Straitswarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, california, suisun bay, san pablo bay, mare island strait, carquinez straitt

British Admiralty Navigation Chart - Philippine Islands - Cabra Island to San Fernando Point including Dilasak B. to St. Miguel B.warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, cabra island to san fernando point, dilasak b. to st. miguel b., philippine islands

British Admiralty Navigation Chart -- Japan, Ishinomaki Wan ( Sensai Bay) and Sakata Ko to Tsugaru Kaikyo (Strait)warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, ishinomaki wan ( sensai bay), sakata ko to tsugaru kaikyo (strait)

British Admiralty Navigation Chart - Hawaiian or Sandwich Islandswarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, hawaiian or sandwich islands

British Admiralty Navigation Chart - Manila Harbourwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, manila harbour

British Admiralty Navigation Chart - Africa, North Coast - Ras Makhabez to Bengaziwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, ras makhabez to bengazi, british admiralty navigation chart, navigation chart

British Admiralty Navigation Chart - Sea of Okhotskwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart

British Admiralty Navigation Chart - Hong Kong - Waters Eastwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, hong kong - waters east, hong kong

British Admiralty Navigation Chart - Japan - Moji and Shimonoseki Kòwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, moji and shimonoseki kò

British Admiralty Navigation Chart - Tokyo to Sendai Baywarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, tokyo to sendai bay

British Admiralty Navigation Chart - Japan - Moji and Shimonoseki Kòwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, moji and shimonoseki kò

British Admiralty Navigation Chart - Africa, North Coast - C. Bougaroni to Fratelli Rocks and including The Galita Channelwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, c. bougaroni to fratelli rocks including the galita channel

British Admiralty Navigation Chart - North East Pacific - Cape Cprrientes, Mexico to Kodiak Islandwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, cape cprrientes,, mexico, kodiak island

British Admiralty Navigation Chart - Jamaica and the Pedro Bank with part of Cuba and Haitiwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, pedro bank, jamaica

British Admiralty Navigation Chart - Jamaica and the Pedro Bank with parts of Cuba and Haitiwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, pedro bank, jamaica

British Admiralty Navigation Chart - Islands in the North Pacific (Western Hawaiian Group) : Midway Islands, Seward Road and Welles Harbour, Necker Island, Cure or Ocean Island, Pearl and Hermes Reefwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, midway islands, islands in the north pacific (western hawaiian group), seward road, welles harbour, necker island, cure or ocean island, pearl and hermes reef

British Admiralty Navigation Chart - North-East Coast of New Guinea with Bougainville, New Britain, New Ireland & Admiralty Islandswarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, british admiralty navigation chart, navigation chart, new guinea, bougainville, north-east coast of new guinea, new britain, new ireland, admiralty islands

British Admiralty Navigation Chart - Malacca Straits - Approaches to Perak Riverwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, approaches to perak river, malacca straits

British Admiralty Navigation Chart - Pacific Oceanwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, shipwreck-coast, maritime-museum, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, pacific ocean

British Admiralty Navigation Chart - South Pacific Ocean - Melbourne to Cape Hornwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, melbourne to cape horn, south pacific ocean

British Admiralty Navigation Chart - Gulf of Aden - Sokòtra Islandwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, gulf of aden, sokòtra island

British Admiralty Navigation Chart - Libia, Ras Makhebez to Benghaziwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, libia, ras makhabez to benghazi

British Admiralty Navigation Chart - Pacific Oceanwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, pacific ocean

British Admiralty Navigation Chart - North Atlantic Ocean - Western Portionwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, north atlantic ocean

British Admiralty Navigation Chart - Portland to Owers, England - South Coastwarrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, shipwrecked-artefact, navigation chart, british admiralty navigation chart, british admiralty, portland to owers