Isambard Kingdom Brunel FRS

Best known for building dockyards, the Great Western Railway, steamships, bridges, tunnels and revolutionising public transport and modern engineering, the British mechanical and Civil Engineer Isambard Kingdom Brunel, FRS was born 9 April 1806.When Brunel was eight he was sent to Dr Morrell’s boarding school in Hove, where he learned the classics. His father, was determined that Brunel should have access to the high-quality education he had enjoyed in his youth in France; accordingly, at the age of 14, the younger Brunel was enrolled first at the College of Caen in Normandy, then at Lycée Henri-Quatre in Paris. Sadly his because his Father Marc sent him to expensive schools, he encountered financial problems, however because he was a Prominent engineer the Government intervened on his behalf. When Brunel completed his studies at Henri-Quatre in 1822, he was due to attend the renowned engineering school École Polytechnique, however Brunel studied under the prominent master clockmaker and horologist Abraham-Louis Breguet instead, after he praised Brunel’s potential in letters to his father.In late 1822, having completed his apprenticeship, Brunel returned to England. Brunel worked for several years as an assistant engineer on the hazardous project to create a tunnel under London’s River Thames near Rotherhithe, alongside his Father, who was chief engineer. However cave-ins and severe flooding in 1828 killed a number of Miners a delayed work, with Brunel narrowly escaping death himself.

During the early part of Brunel’s life, the use of railways began to take off as a major means of transport for goods. This influenced Brunel’s involvement in railway engineering, including railway bridge engineering. In 1833, before the Thames Tunnel was complete, Brunel was appointed chief engineer of the Great Western Railway, one of the wonders of Victorian Britain, running from London to Bristol and later Exeter. The company was founded at a public meeting in Bristol in 1833, and was incorporated by Act of Parliament in 1835. It was Brunel’s vision that passengers would be able to purchase one ticket at London Paddington and travel from London to New York, changing from the Great Western Railway to the Great Western steamship at the terminus in Neyland, South Wales. He surveyed the entire length of the route between London and Bristol himself, with the help of many including his Solicitor Jeremiah Osborne of Bristol Law Firm Osborne Clarke who one occasion rowed Isambard Kingdom Brunel down the River Avon himself to survey the bank of the river for the route. Brunel decided to use a broad gauge of 7 ft 1⁄4 in (2,140 mm) for the track, despite almost all other railways using standard Gauge, because he believed Broad Gauge would offer superior running at high speeds; he also proved through both calculation and a series of trials that his broader gauge was the optimum size for providing both higher speeds and a stable and comfortable ride to passengers, with the wider gauge allowing for larger carriages and thus greater freight capacity.

Drawing on Brunel’s experience with the Thames Tunnel, the Great Western designed many architectural feats of engineering including soaring viaducts such as the one in Ivybridge, specially designed stations, and vast tunnels including the Box Tunnel, which was the longest railway tunnel in the world at that time. Brunel also ordered many Locomotives to his own specification including “North Star” and 20-year-old Daniel Gooch (later Sir Daniel) was appointed as Superintendent of Locomotive Engines. Brunel and Gooch chose to locate their locomotive works at the village of Swindon.

Brunel also designed many bridges including the Clifton Suspension Bridge in Bristol, which spans over 700 ft (210 m), and nominally 200 ft (61 m) above the River Avon. Brunel submitted his designs to a committee headed by Thomas Telford, who rejected all entries, in favour of his own design, however the Public voted in favour of Brunel’s design. Brunel also designed the Maidenhead Railway Bridge. Work also started on the Clifton suspension bridge in 1831, but was suspended due to the Queen Square Riots, However Thanks to colleagues at the Institute of Civil Engineers Work recommenced in 1862 and was completed in 1864, five years after Brunel’s death. The Clifton Suspension Bridge still stands today and over 4 million vehicles traverse it every year.

Brunel also designed the Royal Albert Bridge spanning the River Tamar at Saltash near Plymouth, Somerset Bridge (an unusual laminated timber-framed bridge near Bridgwater, the Windsor Railway Bridge. The Maidenhead Railway Bridge over the Thames in Berkshire is still carrying main line trains to the west, even though today’s trains are about ten times heavier than in Brunel’s time.In 1845 Hungerford Bridge, a suspension footbridge across the Thames near Charing Cross Station in London, was opened. It was replaced by a new railway bridge in 1859, and the suspension chains were used to complete the Clifton Suspension Bridge. Brunel also designed the Royal Albert Bridge in 1855 for the Cornwall Railway, this consists of two main spans of 455 ft (139 m), 100 ft (30 m) above mean high spring tide, plus 17 much shorter approach spans. Opened by Prince Albert on 2 May 1859, it was completed in the year of Brunel’s death.


Brunel’s achievements inspired and ignited the imagination of many technically minded Britons. However After Brunel’s death standard gauge was adopted by all railways in the country. Despite the Great Western’s claim of proof that its broad gauge was the better the decision was made to use Stephenson’s standard gauge, mainly because this had already covered a far greater amount of the country. However, by May 1892 when the broad gauge was abolished the Great Western had already been re-laid as dual gauge (both broad and standard). There is also a larger than life bronze statue of him at Neyland holding a steamship in one hand and a locomotive in the othe

another of Brunel’s interesting use of technical innovations was the atmospheric railway, the extension of the Great Western Railway (GWR) southward from Exeter towards Plymouth, technically the South Devon Railway (SDR), though supported by the GWR. Instead of using locomotives, the trains were moved by Clegg and Samuda’s patented system of atmospheric (vacuum) traction, whereby stationary pumps sucked air from a pipe placed in the centre of the track.The section from Exeter to Newton (now Newton Abbot) was completed on this principle, and trains ran at approximately 68 miles per hour (109 km/h). Pumping stations with distinctive square chimneys were sited at two-mile intervals. Fifteen-inch (381 mm) pipes were used on the level portions, and 22-inch (559 mm) pipes were intended for the steeper gradients.The technology required the use of leather flaps to seal the vacuum pipes. The natural oils were drawn out of the leather by the vacuum, making the leather vulnerable to water, rotting it and breaking the fibres when it froze. It had to be kept supple with tallow, which is attractive to rats. The flaps were eaten, and vacuum operation lasted less than a year, from 1847 (experimental service began in September; operations from February 1848) to 10 September 1849. A number of South Devon Railway engine houses still stand, including that at Totnes (scheduled as a grade II listed monument in 2007 to prevent its imminent demolition, even as Brunel’s bicentenary celebrations were continuing) and at Starcross, on the estuary of the River Exe, which is a striking landmark, and a reminder of the atmospheric railway, also commemorated as the name of the village pub.

In 1835, before the Great Western Railway had opened, Brunel proposed extending its transport network by boat from Bristol across the Atlantic Ocean to New York City. The Great Western Steamship Company was formed by Thomas Guppy for that purpose. It was widely disputed whether it would be commercially viable for a ship powered purely by steam to make such long journeys. Technological developments in the early 1830s—including the invention of the surface condenser, which allowed boilers to run on salt water without stopping to be cleaned—made longer journeys more possible, but it was generally thought that a ship would not be able to carry enough fuel for the trip and have room for a commercial cargo. Brunel formulated the theory that the amount a ship could carry increased as the cube of its dimensions, whereas the amount of resistance a ship experienced from the water as it travelled only increased by a square of its dimensions. This would mean that moving a larger ship would take proportionately less fuel than a smaller ship.

To test this theory, Brunel offered his services for free to the Great Western Steamship Company, which appointed him to its building committee and entrusted him with designing its first ship, the Great Western.When it was built, the Great Western was the longest ship in the world at 236 ft (72 m) with a 250-foot (76 m) keel. The ship was constructed mainly from wood, but Brunel added bolts and iron diagonal reinforcements to maintain the keel’s strength. In addition to its steam-powered paddle wheels, the ship carried four masts for sails. The Great Western embarked on her maiden voyage from Avonmouth, Bristol, to New York on 8 April 1838 with 600 long tons (610,000 kg) of coal, cargo and seven passengers on board. Brunel himself missed this initial crossing, having been injured during a fire aboard the ship as she was returning from fitting out in London.

As the fire delayed the launch several days, the Great Western missed its opportunity to claim title as the first ship to cross the Atlantic under steam power alone. Even with a four-day head start, the competing Sirius arrived only one day earlier and its crew was forced to burn cabin furniture, spare yards and one mast for fuel. In contrast, the Great Western crossing of the Atlantic took 15 days and five hours, and the ship arrived at her destination with a third of its coal still remaining, demonstrating that Brunel’s calculations were correct. The Great Western had proved the viability of commercial transatlantic steamship service, which led the Great Western Steamboat Company to use her in regular service between Bristol and New York from 1838 to 1846. She made 64 crossings, and was the first ship to hold the Blue Riband with a crossing time of 13 days westbound and 12 days 6 hours eastbound. The service was commercially successful enough for a sister ship to be required, which Brunel was asked to design.

Brunel had become convinced of the superiority of propeller-driven ships over paddle wheels. After tests conducted aboard the propeller-driven steam tug Archimedes, he incorporated a large six-bladed propeller into his design for the 322-foot (98 m) Great Britain, which was launched in 1843.Great Britain is considered the first modern ship, being built of metal rather than wood, powered by an engine rather than wind or oars, and driven by propeller rather than paddle wheel. She was the first iron-hulled, propeller-driven ship to cross the Atlantic Ocean.Her maiden voyage was made in August and September 1845, from Liverpool to New York. In 1846, she was run aground at Dundrum, County Down. She was salvaged and employed in the Australian service.And today she is fully preserved and open to the public in Bristol, UK.

In 1852 Brunel began designing a third ship, larger than her predecessors, intended for voyages to India and Australia. Named The Great Eastern and built at John Scott Russell’s Napier Yard in London, she was cutting-edge technology for her time: almost 700 ft (210 m) long, fitted out with the most luxurious appointments, and capable of carrying over 4,000 passengers. Great Eastern was designed to cruise non-stop from London to Sydney and back (since engineers of the time misunderstood that Australia had no coal reserves), and she remained the largest ship built until the start of the 20th century. Like many of Brunel’s ambitious projects, the ship soon ran over budget and behind schedule in the face of a series of technical problems. Also because Brunel’s engineering innovations were so revolutionary and ahead of their time, the prevailing economic and industrial conditions meant It was several decades before transoceanic steamship travel emerged as a viable industry. Great Eastern set forth on her maiden voyage from Southampton to New York on 17 June 1860. Under Captain Sir James Anderson, the Great Eastern was also deployed as an oceanic telegraph cable-layer playing a significant role in laying the first lasting transatlantic telegraph cable, which enabled telecommunication between Europe and North America.

Brunel became A celebrated engineer in his era and numerous monuments were dedicated to Brunel in London at Temple, Brunel University, Paddington station, Bristol, Plymouth, Swindon, Milford Haven and Saltash. The topmast of the Great Eastern is also used as a flagpole at the entrance to Anfield, Liverpool Football Club’s ground.Contemporary locations bear Brunel’s name, such as Brunel University in London, a shopping centre in Bletchley, Milton Keynes, and a collection of streets in Exeter: Isambard Terrace, Kingdom Mews, and Brunel Close. A road, car park, and school in his home city of Portsmouth are also named in his honour, along with one of the city’s largest public houses There is an engineering lab building at the University of Plymouth named in his honour.

In a 2002 BBC television poll Of the “100 Greatest Britons”, Brunel came second, behind Winston Churchill. Brunel’s life and works have been depicted in numerous books, films and television programs. Perhaps the most recent is the 2003 book and BBC TV series, Seven Wonders of the Industrial World, which included a dramatisation of the building of the Great Eastern. Many of Brunel’s bridges are also still in use, having stood the test of time. Brunel’s first engineering project, the Thames Tunnel, is now part of the London Overground network. The Brunel Engine House at Rotherhithe, which once housed the steam engines that powered the tunnel pumps, now houses the Brunel Museum dedicated to the work and lives of Marc and Isambard Kingdom Brunel. Many of Brunel’s original papers and designs are now held in the Brunel Institute alongside the SS Great Britain in Bristol, and are freely available for researchers.

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