Navigation Log for Training Flights by A.T.S in Aeroplane W1234 (Anson), details filled in on RAAF form A.84. Filled by F/L McBoast, P/O Prune, F/O Knutts. (These are fictitious names to obviously give an example) Part of the Frederick Gardner Davey DFC No 410533 RAAF Collection. refer Cat No 3536P for his service details.Four page proforma printed in black ink, handwritten details on pages 1,2,3,, page four no handwritten details.Hand written in format on pages 1 - 3 in pencil detailing flight flight from Koroit to Smithton (Tasmania), weather, wind speed and observation points.navigation log, training flights, raaf

Navigation Log for flight by A.T.S in Aeroplane W - 2275 operating under order No 18/40. Details filled in on form RAAF A.84. Form filled in by F/L Smith, Sgt Jones, P/O Jones. Part of the Frederick Gardner DFC RAAF No 410533 collection. Refer Cat No 3536P for his service details.Four page Proforma printed in black ink, handwritten details in pencil on pages 1,2,3.The hand written information pages 1,2,3, details a flight from Pt Nepean to Woodside, weather, wind speed and observation points noted.training flight, raaf, w - 2275

A Ship's Log looked very similar to a torpedo but was used to measure the speed of a ship. When dragged behind the vessel, movement of water past the propeller caused it to rotate, turning the small needle dials to record the distance and speed travelled. https://museumsvictoria.com.au/immigrationmuseum/resources/journeys-to-australia/Ship's Log Display HeadWalkers Cherub 111 ships lognavigation, speed, knot, chip log, log, thomas walker and son

The Excelsior IV Log is a nautical instrument for measuring a vessel’s speed and distance travelled. When navigating a ship it is essential to be able to estimate the boat’s speed and distance travelled to determine its position at sea. In times past the only way to measure a ship’s speed was to throw a wood log into the water and observe how fast it moved away from the ship. In the 16th century, the log was fastened to a rope knotted at set intervals. The log was thrown over the stern (back) of the vessel and a crew member counted the number of knots that were paid out in a set time. From this, they could estimate the speed of the vessel through the water. This was known as streaming the log and is also the derivation of the knot as a measurement of nautical speed. The Walker’s Excelsior Mark IV instrument was designed for smaller vessels, such as yachts, launches and fishing vessels. Historical: Thomas Walker & Son was internationally renowned in the manufacturing of ships logs, founding father , Thomas Walker (1805–1871), an engineer in Birmingham, patented a mechanical log in 1878 which was a recording instrument that attached to a rail at the stern of a vessel connected by a long cord with a rotor which was towed behind the ship. The instrument dial recorded the distance travelled. Thomas Walker first went into business to manufacture stoves at 58 Oxford Street Birmingham. Walker’s self-feeding stove was widely lauded at the Paris Exhibition of 1855, winning a prize medal and kick starting the first of many notable innovations for the Walker family's manufacturing business. However, it wasn’t until working on an earlier ship’s log model invented by his Uncle that Thomas Walker became interested in the further development of this device, used to ascertain a ship’s speed. Walker continued to improve on the common log for the company of Massey & Sons and these improvements were deemed revolutionary. This log became a firm favourite of the West India Association (British-based organisation promoting ties and trade with the British Caribbean), being the most common log in use for two generations. It took until 1861 for Thomas Walker and his son, Thomas Ferdinand Walker (1831-1921) to patent the first Walker log of many. Together, with the introduction of the A1 Harpoon Log two years later, they established the Walker Log Business as a force to be reckoned with. By the time of his passing in 1871, Thomas Walker Snr had not only founded a family business with considerable staying power but also instilled a tradition of public service. Having sat as a representative on the Birmingham Town Council for 15 years and played an active role in public works, he was soon given the nickname of ‘Blue Brick Walker’. Much like his father, Thomas Ferdinand Walker changed the face of the maritime industry. His patent of 1897, the ‘Cherub’ log, was a notable departure from the past providing a far more accurate reading and replacing the majority of logs of the age. They were the first to produce an electric log and the Walker factory was one of the first to introduce the 48 hour work week for employees. The ship log was invented and made by a significant marine instrument maker and innovator of machinery. It demonstrates the huge leap taken to improve navigational accuracy at sea with an instrument that was in use for decades.Ship's Taff Rail Log, rope attached. Walker's Excelsior IV Log model. Nautical miles dials: units and 10's. "Walker's Excelsior IV Log", "Made in England by Thomas Walker, Birmingham"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, log register, taff rail log, taffrail log, marine navigation, a1 harpoon log, cherub’ log, walker’s excelsior mark iv log, ship’s log instrument, mechanical ship’s log, measure ship’s speed, nautical instrument, navigation instrument, massey & sons, thomas walker, blue brick walker, thomas walker & son, thomas ferdinand walker, 48 hour work week

Thomas Walker & Son was internationally renowned in the manufacturing of ships logs. Founding father Thomas Walker (1805–1871), an engineer in Birmingham, patented a mechanical log in 1878 which was a recording instrument that attached to a rail at the stern of a vessel connected by a long cord with a rotor which was towed behind the ship. The instrument dial recorded the distance travelled. Thomas Walker first went into business to manufacture stoves at 58 Oxford Street Birmingham. Walker’s self-feeding stove was widely lauded at the Paris Exhibition of 1855, winning a prize medal and kick starting the first of many notable innovations for the Walker family's manufacturing business. However, it wasn’t until working on an earlier ships log model invented by his Uncle that Thomas Walker became interested in the further development of this device, used to ascertain a ship’s speed. Walker continued to improve on the common log for the company of Massey & Sons and these improvements were deemed revolutionary. This log became a firm favourite of the West India Association (British-based organisation promoting ties and trade with the British Caribbean) and the most common log in use for two generations. It took till 1861 for Thomas Walker and his son, Thomas Ferdinand Walker (1831-1921) to patent the first Walker log of many. Together, with the introduction of the A1 Harpoon Log two years later, they established the Walker Log Business as a force to be reckoned with. By the time of his passing in 1871, Thomas Walker Snr had not only founded a family business with considerable staying power but also instilled a tradition of public service. Having sat as a representative on the Birmingham Town Council for 15 years and played an active role in public works, he was soon given the nickname of ‘Blue Brick Walker’. Much like his father, Thomas Ferdinand Walker changed the face of the maritime industry. His patent of 1897, the ‘Cherub’ log, was a notable departure from the past providing a far more accurate reading and replacing the majority of logs of the age. They were the first to produce an electric log and the Walker factory was one of the first to introduce the 48 hour work week for employees. This ship log was invented and made by a significant marine instrument maker and innovator of machinery. It demonstrates the huge leap taken to improve navigational accuracy at sea with an instrument that was in use for decades. Ship Log, three analogue dials calibrated in increments of Miles, the Rocket Log is a nautical instrument for measuring a vessel’s speed and distance traveled. The floating log was drawn behind the ship over a fixed time period in order to measure the distance traveled. The counter could measure enough miles to cover the maximum distance traveled by a ship in one day. The log has two distinct parts; a brass register, made by Walker, showing the distance recorded and the rotator made by Reynolds, that spins in the water driving the counter. both parts are connected by a linked chain. The register has a cylindrical brass body approx 4.5 cm diameter containing registering mechanism with hardened steel bearings. Distance is indicated by the three pointers on enamel plate as follows: graduated every 10 miles from 0-100; every mile from 1-10; every 1/4 mile from 1/4 -1. A brass sling and eye secured to the body enables it to be attached to the taffrail. The original rotator would have had a cylindrical tapered wooden body, approx 4.5 cm in diameter with three metal alloy fins or could be all made from brass. A towing eye is fitted to the tapered end. The two pieces of apparatus are connected by a length of linked chain, length 22.9 cm."Walkers Rocket Ship-Log Birmingham (Patented)" printed on face-plate. "Made by Thomas Walker".flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, ship log, rocket log, mechanical ship log, measuring instrument, marine instrument, nautical instrument, speed recording instrument, ship log register, walker ship log, walkers rocket ship-log, thomas walker, thomas walker & son, thomas ferdinand walker, walker log business, reynolds ship log rotor, taffrail log, taff rail log, west india association

The flywheel possibly belongs to a Walker's Cherub Mark III Ship-log taffrail, how the flywheel operates is a metal loop of the recording log would have been connected to the flywheel, so you could see if it was spinning properly. After the flywheel, is the rotor that was towed behind the ship and the revolutions of the rotor would register on the indicator, thus measuring the distance the vessel had travelled. Thomas Ferdinand Walker (1837–1921) first patented the Cherub log in 1878. It was one of the first logs in which the recorder was placed onboard a ship rather than being incorporated as part of the rotor. The Cherub Mark III series was produced from 1930 it came in two versions a thousand-mile which is quite rare and a five hundred-mile version.This ship log flywheel was invented and made by a significant marine instrument maker and innovator of machinery Thomas Walker. It demonstrates the huge leap taken to improve navigational accuracy at sea with an instrument that was in use for decades to measure the distance travelled at sea updated versions are in use today by mariners.Log Governor (or Fly-wheel) from a Ships Taffrail Log, metal wheel with 6 spokes, hub has rope attached for connecting to ships log. Boss the other side for attachment to the spinner.Noneflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, log governor

Thomas Walker & Son was internationally renowned in the manufacturing of ships logs, founding father, Thomas Walker (1805–1871), an engineer in Birmingham, patented a mechanical log in 1878 which was a recording instrument that attached to a rail at the stern of a vessel connected by a long cord with a rotor which was towed behind the ship. The instrument dial recorded the distance travelled. Thomas Walker first went into business to manufacture stoves at 58 Oxford Street Birmingham. Walker’s self-feeding stove was widely lauded at the Paris Exhibition of 1855, winning a prize medal and kick starting the first of many notable innovations for the Walker family's manufacturing business. However, it wasn’t until working on an earlier ships log model invented by his Uncle that Thomas Walker became interested in the further development of this device, used to ascertain a ship’s speed. Walker continued to improve on the common log for the company of Massey & Sons and these improvements were deemed revolutionary. This log became a firm favourite of the West India Association (British-based organisation promoting ties and trade with the British Caribbean). and the most common log in use for two generations. It took till 1861 for Thomas Walker and his son, Thomas Ferdinand Walker (1831-1921) to patent the first Walker log of many. Together, with the introduction of the A1 Harpoon Log two years later, they established the Walker Log Business as a force to be reckoned with. By the time of his passing in 1871, Thomas Walker Snr had not only founded a family business with considerable staying power but also instilled a tradition of public service. Having sat as a representative on the Birmingham Town Council for 15 years and played an active role in public works, he was soon given the nickname of ‘Blue Brick Walker’. Much like his father, Thomas Ferdinand Walker changed the face of the maritime industry. His patent of 1897, the ‘Cherub’ log, was a notable departure from the past providing a far more accurate reading and replacing the majority of logs of the age. They were the first to produce an electric log and the Walker factory was one of the first to introduce the 48 hour work week for employees. This ship log rotor was invented and made by a significant marine instrument maker and innovator of machinery. It demonstrates the huge leap taken to improve navigational accuracy at sea with an instrument that was in use for decades and still is today. Therefore it is a worthy addition to the Flagstaff Maritime collection as it demonstrates another aspect of maritime navigation.A Walkers Cherub III Patent mechanical ship brass rotor with with four vane's one marked with an anchor and "T. W. Cherub 441", The log is attached to a brass swivel with a short length of rope. Has T W Cherub 441 marked on a vane.flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, log rotor, taffrail log, thomas walker, marine technology, marine instrument, navigation, ship speed, measurment

Two 1850s surveyor's maps on cardboard backing showing area from Melbourne extending East beyond Bulleen and Nunawading. Detailed description of lots for sale and navigational directions to the property from Richmond by Thomas Ham, Victorian public servant, map maker, publisher, lithographer and original Ringwood land owner. Inset map enlarging area between Yarra River and Dandenong Creek, with southern boundary of allotments later forming part of Oban Road, North Ringwood.TRANSCRIPT: "This really valuable Property is now offered to the public for sale, in lots to suit purchasers at the Iow rate of £1 per Acre for 80 acres and upwards, and £1.10s per Acre for any smaller portion. Terms of payment Half Cash, Balance in 6 and 12 months, bearing 8 per cent interest. The Estate is well wooded with Gum, Cherry Tree and Stringy Bark, with Wattle in the valleys of the several creeks. Every lot is Staked and Trenched at the corners marked on the Plan thus - The Surveyor has carefully sub-divided the Property, in order to give every Farm a Creek for Water, Valley for Cultivation, and Hills for House and Grass Paddock. The ROADS have been very carefully laid out so as to give a firm, well drained, and nearly level road to each Homestead. Intending purchasers can readily find the property by the following directions, viz: Start from Richmond Bridge, at Hawthorne, then take the left-hand road to KEW. When at the "Woodman Inn", take the Cotham Road to the right, bearing due east, keep this Road, passing Trainor's "White Horse" Inn, and before you leave the fences, you will see calico bills (see margin) nailed to the Trees on the bush track leading to the Upper Yarra country, follow the Bills till you come to the SOUTH boundary line of the Property, which bears East and West (see Plan) where you will see Bills nailed up "THIS PROPERTY FOR SALE, etc." The Bills from Town lead direct to where Mr. Jull is erecting his Store, and arrangements have been made with him to show the lots to intending purchasers free of charge. At the respective corners of the lots the Bills are nailed up double, with numbers to denote the lot, and that the corner stake is adjacent. Any parties wishing to proceed to the property by way of BULLEEN will find Bills nailed on the Trees, commencing at the NEW INN, at "Wilson's Slip Rail." Keep this Track till you come to the Log Bridge, over the Deep Creek at Bloxhome's Paddock; go through the land now being cleared; keep the track over the hill till you come to an Iron House, you will then be on the property, which Iies to the North and East as per Plan. Follow the Bills till you come to Mr. Jull's Store, etc. etc. Further particulars can be had from the Agent for the Property. THOMAS HAM. "

The British Phosphate Commissioners (BPC) was a board of Australian, British, and New Zealand representatives who managed extraction of phosphate from Christmas Island, Nauru, and Banaba (Ocean Island) from 1920 until 1981. Captain S.G. Ellams Walter Harbord (Wal or Wally) (b.1923 in Brisbane-d.), master mariner in the Merchant Navy on British Phosphate Commission ships. George Garrett Kitching (1926 - 2005) was second mate on the following ships onboard which he records the events: MV Gorgon : 5-12-46 to16-1-48 SS Titan: 25-1-49 to 16-6-49 MV Orestes: 5-8-49 to 22-9-50 MV Astyanax: 28-4-51 to 7-5-51 (Coasting) MV Trienza: 8-4-53 to 9-10-53Walter was interviewed by the Australian at War Film Archive in 2003. He served on these ships: SS Corinda SS Macumba SS Mildura SS Nellor SS Ormiston SS Reynellaanne rennie collection, wal harbord, merchant navy, seamen, seafarers, ww2, battle of the atlantic, walter harbord, navigation, m.v. trienza, s.s. titan, captain s.g. ellams, bpc, ship log, captain g.g. kitching, m.v. orestes, m.v gorgon, m.v. astyanax, denis ryan, dinny ryan, dennis william ryan

The British Phosphate Commissioners (BPC) was a board of Australian, British, and New Zealand representatives who managed extraction of phosphate from Christmas Island, Nauru, and Banaba (Ocean Island) from 1920 until 1981. Walter Harbord (Wal or Wally) (b.1923 in Brisbane-d.), master mariner in the Merchant Navy on British Phosphate Commission ships.Walter was interviewed by the Australian at War Film Archive in 2003. He served on these ships: SS Corinda SS Macumba SS Mildura SS Nellor SS Ormiston SS Reynellaanne rennie collection, wal harbord, merchant navy, seamen, seafarers, ww2, battle of the atlantic, walter harbord, hezzanith, sextant, nautical instrument, navigation, captain g.g. kitching, m.v. trienza, m.v. triaster, m.v. triellis, bpc, ship log, radiogram, phosphate, nauru

The John E. Hand & Sons Company was founded in Philadelphia in 1873, quickly gaining a reputation as competent manufacturers of nautical instruments and compass adjusters. In fact, John Enos Hand, the company founder, is recognised as the first man in America to adjust a compass aboard an iron ship. The Hand Company built navigational equipment for all varieties of floating vessels, and operated a chain of retail outlets with “service stations” in numerous port cities, including Baltimore and New Orleans, until 1956. Service stations sold Hand instruments as well as other nautical paraphernalia and provided compass adjusting services. Additionally, John E Hand and his two sons, John L Hand and Bartram Hand, were inventors in their own right who patented design improvements for numerous instruments that were employed in the company’s work. Commercial and private contracts dominated the firm’s business until the late 1930s when the United States military began preparations for World War II. Although the Hand Company never completely abandoned its involvement with private industry, after World War II, military contracts monopolised their business. The Company obtained contracts with the Navy, Coast Guard and Marines to develop new instruments, and to build military-engineered nautical equipment. Of note are the wrist compass, developed for the Navy beginning in the 1950s, and the Mark VII Model 5 Navy Standard Binnacle. Although it moved numerous times, the Hand Company headquarters and factory remained in the Delaware Valley, occupying several buildings in Philadelphia and southern New Jersey. Maintaining its central office in Philadelphia well into the 1900s, the factory was moved to Atco, New Jersey around the turn of the twentieth century and subsequently to Haddon field, New Jersey. It moved one last time in the 1960s to Cherry Hill, New Jersey. In 1997, California-based Sunset Cliffs Merchandising Corporation purchased the Hand Company and all its assets for $100,000. "HAND" brand taffrail log by John F. Hand and Sons Co. Register is enclosed in log, has a glass front and 3 dials on an enameled surface, the first dial registers the miles up to 100, the second registers the units up to 10 mile, the third registers quarters of a mile. The item is rocket shaped with a three blade rotor and a rope ring attachment at one end; the rotor will spin when a rope is attached, allowing the apparatus dials to measure the ship's speed when it is dragged behind a ship. Diagram of the 'Hand' trademark with a compass card in the middle, inscription reads "John F Hand and Sons Co" and "PHILA-BALTO" ( Abbreviation for: Philadelphia / Baltimore) flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, bartram hand, john enos hand, john f. hand and sons co, john l hand, john hand & sons instrument makers, john hand & sons of philadelphia, marine instrument, marine service station, mechanical ship log, nautical instrument, nautical navigation, navigational equipment, scientific instrument, ship log, ship log register, ship’s speed, sunset cliffs merchandising corporation, speed log, rocket log, harpoon log, taffrail log, taff rail log

In times past the only way to measure a ship’s speed was to throw a wood log into the water and observe how fast it moved away from the ship. In the 16th century, the log was fastened to a rope knotted at set intervals. The log was thrown over the stern (back) of the vessel and a crew member counted the number of knots that were paid out in a set time. From this, they could estimate the vessel's speed through the water. This was known as streaming the log and is also the derivation of the knot as a measurement of nautical speed. Various manufacturers of nautical equipment had sought over the years to perfect the operation of determining a ship's speed and it wasn't until Thomas Walker and his son Ferdinand developed a mechanical system that eventually made this task became easy for marine navigators. Thomas Walker & Son were internationally renowned in the manufacturing of ship logs the founding father, Thomas Walker (1805–1871), an engineer in Birmingham, patented his mechanical log in 1878 which was a recording instrument that attached to a rail at the stern of a vessel connected by a long cord with a rotor which was towed behind the ship. The instrument dial then recorded the distance travelled. Thomas Walker first went into business to manufacture stoves at 58 Oxford Street Birmingham. Walker’s self-feeding stove was widely lauded at the Paris Exhibition of 1855, winning a prize medal and kickstarting the first of many notable innovations for the Walker family's manufacturing business. However, it wasn’t until working on an earlier ship’s log model invented by his Uncle that Thomas Walker became interested in the further development of this device, used to ascertain a ship’s speed. Walker continued to improve on the common log for the company of Massey & Sons and these improvements were deemed revolutionary. This log became a firm favourite of the West India Association (a British-based organisation promoting ties and trade with the British Caribbean), being the most common log in use for two generations. It took until 1861 for Thomas Walker and his son, Thomas Ferdinand Walker (1831-1921) to patent the first Walker log of many. Together, with the introduction of the A1 Harpoon Log two years later, they established the Walker Log Business as a force to be reckoned with. By his passing in 1871, Thomas Walker Snr had not only founded a family business with considerable staying power but also instilled a tradition of public service. Having sat as a representative on the Birmingham Town Council for 15 years and played an active role in public works, he was soon given the nickname of ‘Blue Brick Walker’. Much like his father, Thomas Ferdinand Walker changed the face of the maritime industry. His patent of 1897, the ‘Cherub’ log, was a notable departure from the past providing a far more accurate reading and replacing the majority of logs of the age. They were the first to produce an electric log (Trident) and the Walker factory was one of the first to introduce the 48-hour work week for employees.The ship log was invented and made by a significant marine instrument maker and innovator of machinery. It demonstrates the huge leap taken to improve navigational accuracy at sea with an instrument that was in use for decades.Ships Log, Walker Trident electric motor, in wooden box with instructions inside box. The motor dial with electric cord is still inside box.Inscription "Admiralty patent number 3332" and "Walker Trident Electric Ship Log (Mark III), 15-25 volt". On top of lid, hand written, is "G TAYLOR"flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, ships log, thomas walker & son, electric ships log, marine navigation, thomas ferdinand walker, ship log

John Bliss (1795-1857) was born in Connecticut, trained as a silversmith and clock maker in Vermont, and began in business as a jeweller in New York around 1830. In 1834, now trading as Bliss & Creighton, he made and marketed chronometers and other items for navigational use. The firm became John Bliss & Son in 1855 and John Bliss & Co. in 1857. It remained in business until 1957. Truman Hotchkiss, a sea captain from Stratford, Connecticut, designed a mechanical Taff rail log in which the recording mechanism was placed on taffrail (or upper part of the stern) of the ship. After acquiring the rights to Hotchkiss’s patents of 1864 and 1867, John Bliss & Co. began advertising the "American Patent Taffrail Log." The firm also offered mechanical logs based on patents granted to John Bliss, Jnr and his brother George, as well as English instruments based on Massey’s and Walker’s patents.The SPECULANT is historically significant as the largest ship to have been registered in Warrnambool, and is believed to have been the largest barquentine to visit Melbourne. It is evidence of the final days of large commercial sailing vessels involved in the Victorian and New Zealand timber trade. The SPECULANT is listed on the Victorian Heritage Register VHR S626John Bliss Taffrail ship log incomplete, rope and spinner missing used on the vessel "Speculant " ( See "Notes" at the end of this document for further information) "Taffrail Log Patented Nov .. Apr .. June .. Sep 1.", dial registers 1/4, units and 10's. with 3 sets of dials, 2 with hands missingflagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, la bella, speculant, cumming and ellis, international timber trade, p. j. mcgennan and co. warrnambool, capt. james jacobsen, first mate: james munro, second mate: john scerling;, cook: b bond; a. b., s: v. sundring, s: h. hansen, s: b. melson, s: h. johnston, s: t. trumblen;, ordinary seaman: r. thompson, cape patton, c. ramsden, log, taffrail ship's log, ship log, john bliss, patent log, peter mcgennan

The ship's log part, called a fish, is likely to be from a mechanical taffrail log system. It was recovered from the wreck site of the barque, the 1840-1852 Grange. There are no marks on the fish to identify its maker or model. It is part of the John Chance Collection. This ‘fish’ is part of an early to mid-1800s ship's log. It would likely have been part of a taffrail log connected to a rotor (also called propeller, spinner) by a strong line, and the other end connected by a line to a dial mounted on the taffrail, or stern rail, at the stern of the vessel. As the propeller rotated through the water it would spin the log, which in turn would cause a number to register on the dial, showing the current speed in knots; one knot equals one nautical mile per hour. TAFFRAIL LOGS A taffrail log is a nautical instrument used for measuring the speed of a vessel, providing vital navigational information to be calculated, such as location and direction. A log has been used to measure the speed of a vessel since the 1500s. A simple piece of wood was tied to a long line and thrown into sea at the back of the vessel. The rope was knotted all along at equal distances apart. On a given signal the log line was pulled back into the vessels, the knots counted until the log came up, then the figures were calculated by a navigator In 1802 the first successful mechanical log available for general use was invented by Edward Massey. It had a rotor 'V' section connected to a recording mechanism. The water’s movement rotated the rotor, which intern sent the movement to the recorder. There are examples of this invention available to see in some of the maritime museums. Thomas Walker, nephew of Edward Massey, improved on Massey’s design, and Walker and his son took out a patent on the A1 Harpoon Log. In 1861. Both Massey and Walker continued to improve the designs of the taffrail log. New designs were still being introduced, even up to the 1950s. THE GRANGE, 1840-1858- The wooden barque ’Grange’ was a three-masted ship built in Scotland in 1840 for international and coastal trade. On March 22, 1858, the Grange set sail from Melbourne under Captain A. Alexander, carrying a cargo of ballast. The barque had left the Heads of Phillip Bay and was heading west along the Victorian coast towards Cape Otway. The ship struck Little Haley’s Reef at Apollo Bay due to a navigational error and was stuck on the rocks. The crew left the ship carrying whatever they could onto the beach. Eventually, the remains of the hull, sails and fittings were salvaged before the wreck of the Grange broke up about a month later. About 110 years later, in 1968, the wreck of the Grange was found by divers from the Underwater Explorers Club of Victoria. They were amazed to find a unique, six to nine pound carronade (type of small cannon) and a cannonball on the site. There have been no other similar carronades recorded. In that same year the anchor of the Grange was recovered by diver John Chance and Mal Brown. The ship’s log is significant historically as an example of hardware used when building wooden ships in the early to mid-19th century. The ship’s log is historically significant as an example of the work and trade of blacksmith. The ship’s log also has significant as it was recovered by John Chance, a diver from the wreck of the Grange in the 1968. Items that come from several wrecks along Victoria's coast have since been donated to the Flagstaff Hill Maritime Village’s museum collection by his family, illustrating this item’s level of historical value. The ship’s log is historically significant for its association with the 1840s wooden barque, the Grange. The Grange is an historical example of a Scottish built vessel used for international and coastal trader of both cargo and passengers in the mid-19th century. The Grange is an example of an early ship, designed with a wooden hull. It is significant as a ship still available to divers along the south coast of Victoria, for research and education purposes. The Grange is an example of a mid-19th century vessel that carried a weapon of defence onboard. Ship log fitting, called a fish; part of a brass navigational instrument, likely to be from a taffrail log. The metal is a tan colour and has rough surface with a sheen, and discolouration in places. Its basic shape is a hollow cylinder with ends tapering to a smaller size. In the centre there are opposing openings cut out, showing a rough texture inside. One end on the cylinder is closed with a ring and shank installed, fixed by an embedded screw through the end of the cylinder. There are no inscriptions.flagstaff hill, warrnambool, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, west coast trader, apollo bay, mid-19th century shipwreck, the grange, scottish barque, little henty reef, captain a alexander, underwater explorers club of victoria, vhr 5297, coastal trader, wooden shipwreck, john chance, wooden ship, taffrail log, marine instrument, marine technology, navigation, nautical instrument, mechanical log, nautical navigation, navigation equipment, scientific instrument, ship log, ship log register, ship speed, taff rail log, patent log, towed log, taffrail log fish, edward massey, thomas walker

Bass Strait passenger ship Nairana. Built for Bass Strait ferry operator Huddart Parker & Co. Ltd. of Melbourne during World War One, the Nairana was requisitioned by the Royal Navy and completed as a seaplane carrier, HMS Nairana. Serving from 1917 to 1920 participating in the capture of Archangel during the Bolshevik Revolution. After 1920 she was decommissioned as a seaplane carrier and returned to her Australian owners crossing Bass Strait until she was laid up in 1948. Just off Port Phillip Heads on April 12 1936, a strong wave struck the Nairana, tipping her over for two minutes before she righted herself again. During the horrifying two minutes, four people were drowned, and eight people were injured. The ship was reportedly carrying roughly one tonne of concrete in the hull when she tipped. Reports from the local papers said that it was a tidal wave meanwhile others were saying it was either an earthquake or a total lie. A later paper said that the ship had been caught in a rip at the mouth of the bay, causing the tragedy. The S.S Nairana, was sold for £4,000 (over $170,200 in today’s money!) in 1951 after two years of being stranded on the beach at Port Melbourne, when the moorings broke one night during a storm and drifted ashore, causing her to wreck.Items associated with the TSS/HMS Nairana in its military and civilian roles and items relating to Capt. JF Spence, navigation Officer and possibly later the captain who sailed with the Nairana out of Plymouth after WWI. .01 Barometer and Clock from Dining Saloon .02 Commemorative plaque describing the HMS Nairana's WWI service with timber mount for plaque with information sheet attached. .03 Clock Key .04 Two 2 Log books owned by Capt. Spence containing the navigation calculations for the journey from Plymouth to Melbourne. .05 Huddart Parker hat badge [Capt. JF Spence].Barometer and Clock from dining saloon, TSS Nairana 1917 - 1951 Clock Key - 4 50-No9 Hat badge - HPtss nairana, wwi, bass strait, huddart parker, capt. spence

Also copy 15 x 10 same imageBlack and white photograph copied from a postcard of the LookOut Tree on Jemmys Point, shows the standing dead grey box tree supported by two heavy logs, a 35 foot ladder attached for access to top. Lakes Entrance Victoria.historic sites, navigation

Black and white small format postcard of the timber observation lookout at Jemmys Point, Lakes Entrance, Victoria, showing the updated and safer steps from ground to observation deck, with fenced landing at halfway point. Old log and seat still nearby, signal light on steel tower a short distance away.historic sites, navigation, fences

Black and white small format photograph of the LookOut Tree at Jemmys Point, showing dead tree supported by two logs, a woman two-thirds of the way up the 35 foot ladder which reaches the top. Lakes Entrance, Victoriahistoric sites, navigation

Image appears to be copied from an original postcard, maker unidentified|Also and enlarged copy of photograph 27 x 17Colour photograph of the LookOut Tree on Jemmys Point, shows a dead standing grey box tree supported by two logs and with a ladder over thirty feet long attached for access to the four branches used as a viewing platform. One person sitting on top, man in Indian dress halfway up ladder. Lakes Entrance Victoria.LookOut Tree at Lakes Entrance Cunninghame, Victoriahistoric sites, navigation

An hourglass or sandglass is an instrument for measuring a defined time and can be used perpetually by simply turning it over immediately the top bulb empties. The clear blown glass is shaped into two equal sized bulbs with a narrow passage in the centre and contains uniform sized sand or glass particles in the lower bulb. The width of the neck regulates the constant flow of the particles. The glass is held in a stand with top and bottom of equal shape and size. Hourglasses can measure an infinite variety of time by gauging the size of the particles, the shape and size of the bulbs and the size of the passage between the bulbs, thus measuring hours or minutes or even seconds. Generally an hourglass sits between discs of wood at the ends, which are joined by long wooden spindles between the ends and tightened by screw caps. The length of time can be adjusted by adding or removing sand particles. The use of the marine sandglass (or hourglass) has been recorded in the 14th century in European shipping. A one minute sandglass was used in conjunction with the ship’s log for ‘dead reckoning’, (see below) that is, for measuring the ship’s speed through the water. They were also used to regulate ringing the ship’s timetable; for example a 4 hour sandglass was used for the length of the sailors’ watch, and a half hour timer for taking of readings for the ship’s log; the ship’s bell would be rung every half hour. It was usually the role of the cabin boy to watch and turn the sandglasses over at the exact time of them emptying their upper chambers and to ring the ship’s bell. Hourglasses have been used historically for many hundreds of years. Some have been used for timing church sermons, in cooking, in industry and at sea. Even today they are used for measuring the cooking time of eggs and timing a player’s turn in games such as Boggle and Pictionary. The sandglasses at sea were gradually replaced in the late 1700’s to early 1800’s by the more accurate chronometers (marine clocks) when they became reliable instruments. DEAD RECKONING (or Deduced Reckoning) Dead reckoning is the term used to describe the method of calculating the ship’s position from its speed and direction, used in early maritime travel, mostly in European waters. Both the (1) speed and the (2) direction of travel were recorded on a Traverse Board at half-hourly intervals during a helmsman’s watch of 4 hours. The navigator would record the readings in his ship’s log, plot them on his navigational chart and give his updated course directions to the next helmsman on watch, along with the cleared Traverse Board. This was a very approximate, but none-the-less helpful, method of navigation. The wooden Traverse Board was a simple pegboard with a diagram of a compass with eight peg holes along the radius to each of the compass points, plus a grid with ascending half hours in the left column and increasing ship’s speed in knots in a row across the column headings, with a peg hole in each of the intersecting cells. A number of wooden pegs were attached to strings on the board. By placing one peg consecutively in the direction’s radius hole, starting from the centre, and the speed holes when the half hourly reading was taken, a picture of speed and direction for the whole 4 hour watch was created. (1) To measure the ship’s speed a one minute hourglass timer was usually used to measure the ship’s speed through the water and help to calculate its longitude. A rope, with knots at regular standard intervals and a weight such as a log at the end, would be thrown overboard at the stern of the ship. At the same time the hourglass would be turned over and a seaman would start counting the number of knots on the rope that passed freely through his hands as the ship travelled. When the timer ran out the counting would be stopped. A timer of one minute (one-sixtieth of an hour), knots spaced one-sixtieth of a nautical mile apart, and simple arithmetic easily gave the speed of the ship in nautical miles per hour ("knots"). This would be recorded every half hour. The speed could however be inaccurate to the travel being affected by ocean currents and wind. (2) To calculate the ship’s direction a compass sighting would be recorded each half hour.Marine hourglasses or sandglasses were used from around the 14th to 19th century during the time of sailing ships. This hourglass is representative of that era, which is during the time of the colonisation of Australia. Hourglass or sandglass; an instrument used to measure time. Two equal sized clear glass bulbs joined with a narrow passage between them, containing equal sized particles of sand grains in lower bulb. Glass sits in a brass collar at each end, in a frame comprising 3 decorative brass columns or posts, each attached top and bottom, using round screw-on feet, to round brass discs. Disc have Roman numerals for the numbers 1 - 12 pressed into their inner surfaces and hieroglyphics on the outer surfaces. Roman numerals on inner surface of discs " I II III IV V VI VII VIII IX X XI XII " Hieroglyphics impressed on outer surface of discsflagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, horology, hourglass, hour glass, sandglass, sand glass, timing instrument, dead reckoning, deduced reckoning, finding latitude at sea, sandglass with hieroglyphics and roman numerals, hourglass with hieroglyphics and roman numerals, brass hourglass

On back of original 'What price our Yankees climbing trees?'Black and white photograph copied from a postcard showing three men on top of the LookOut Tree at Jemmys Point, tree supported by two logs, 35 foot ladder against tree for access on top, man and woman in buggy and boy on horse watching photographer. Lakes Entrance, Victoriahistoric sites, navigation