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to Frederick Lanchester on his home in Moseley, Birmingham
Frederick William Lanchester, Hon FRAeS (
October 23,
1868 -
March 8, 1946) was an England polymath and engineer who made important contributions to
automotive engineering, aerodynamics and co-invented the field of operations research. He was also a pioneer British motor car builder, a hobby he eventually turned into a successful car company, and is considered one of the "big three" English car engineers, the others being
Harry Ricardo and Henry Royce.
Fourth to be born in a family of three girls and six boys (one of whom died after a few days) in London,
England, he married Dorothea Cooper but had no children
The Lanchester Legacy, Volume 3, edited John Fletcher, 1996, ISBN 0-905949-47-1. Lanchester entered Hartley University College (now the University of Southampton) in 1891, and then the National School of Science at
Imperial College London. His first post-school work was a theory of aerodynamics, which he developed in 1892 but was persuaded not to publish, as his theories in this "outlandish" field would ruin his reputation as an engineer. He did manage to publish a new system for color photography in 1895, a field of high repute at the time.
Engines and cars
He joined the Forward Gas Engine Company of Birmingham in 1889, and in 1893 set up his own workshop. In 1893 Fred designed and built his first engine (a vertical single cylinder) which was fitted to a flat bottomed boat designed by his brothers. The boat was launched at Salter's slipway in Oxford in 1894 and was probably the first all British
powerboat.In 1895 he and his brother built one of the first petrol cars in England, a single cylinder 5 hp (4 kW)
internal combustion engine with chain drive. Unhappy with the performance and power, they re-built the engine the next year into a two cylinder horizontally opposed version using his new wick carburetor design. This versions completed a 1,000 mile tour in 1900.Around this time Lanchester invented the Pendulum Governor which was used for controlling the speed of an engine.
Three of the Lanchester brothers started the
Lanchester Engine Company in 1900 to sell his designs on the market. Many features of the original were retained in their production models, including the mid-mounted engine between the front seat that led to the lack of a "hood" area. The transmission was based on his own compound epicyclical gearing, giving three forward speeds, and drove the rear axle through his own
Lanchester worm gearing. The transmission also included a system similar to modern disk brakes that clamped the
clutch disk for braking, rather than using a separate system as in most cars.
Lanchester continued to make changes to the design. A water-cooled engine appeared in 1902, and a larger 18 hp model in 1904. The same year he also introduced a slightly larger 20 hp four cylinder design, for which, in order to get the smooth running he demanded, he had to invent the system of twin balancing shafts that are used today on modern designs. A 38 hp six was introduced in 1907, requiring another invention for smooth running, the crankshaft damper.
During this period he also experimented with
fuel injection,
turbochargers, added steering wheels in 1907 and invented the accelerator pedal, which previously would not turn off if the operator had problems. He invented (or was the first to use) detachable wire wheels, bearings that were pressure-fed with oil, stamped steel pistons, piston rings, hollow connecting rods, the torsional vibration damper, and the harmonic balancer.
Rudyard Kipling was an early owner who used them as a plot device in one of his short stories. The cars were particularly well known for their smooth operation, due to Lanchester's unwillingness to leave well enough alone, tinkering with each completed design to tune both the engine and suspension until it was "perfect". The company sold about 350 cars of various designs between 1900 and 1904, when they went bankrupt due to the incompetence of the Board of Directors. It was immediately reformed as
The Lanchester Motor Company.
The war
to George Lanchester on his home in Moseley, BirminghamGeorge Lanchester (1874-1970) took over as chief engineer in 1914 when Frederick turned to war efforts. After the war they introduced the more conventional Forty, a rival for the Rolls-Royce 40/50 hp; it was joined in 1924 by an ohc 21 hp six. In 1921 Lanchester was the first company to export left-hand drive cars. Tinted glass was also introduced on these cars for the first time. A 4440 cc straight-eight was launched at the 1928 Southport Rally, again with
overhead cams: it proved to be the last "real" Lanchester, for in 1931 the company was acquired by Daimler Motor Company, and Lanchesters became merely re-clothed Daimlers.
Lanchester's true interest remained mechanical flight, which he had been studying since the early 1890s. Lanchester developed a model for the
vortex that occur behind wings during flight, which included the first full description of
lift (force) and drag (physics), although the formulation was somewhat complex and would have to wait for
Ludwig Prandtl's version before becoming generally useful. He then turned his attention to aircraft stability,
aerodonetics, developing
Lanchester's phugoid theory which contained a description of oscillations and stalls. During this work he outlined the basic layout almost all aircraft have used since then.
He published
Aerial Flight in 1907-08 and was invited to join Prime Minister Herbert Henry Asquith's advisory committee for aeronautics on its formation 1909. An experimental aircraft co-designed by Lanchester did not survive its trial flight in 1911, and he abandoned the practical side of aviation.
He did, however, continue with studies into aviation. During
World War I he was particularly interested in predicting the outcome of aerial battles. In 1916 he published
Aircraft in Warfare: The Dawn of the Fourth Arm, which included a description of a series of
differential equations that are today known as Lanchester's laws. The Laws described how two forces would attrit each other in combat, and demonstrated that the ability of modern weapons to operate at long ranges dramatically changed the nature of combat -- a force that was twice as large had been twice as powerful in the past, but now it was four times, the square of the quotient.
Lancester's Laws were originally applied practically in the
United States to study logistics, where they developed into
operations research (OR). Today OR techniques are widely used, perhaps most so in business.
Monument
An open-air sculpture, the
Lanchester Car Monument, in the Bloomsbury, Heartlands, area of Birmingham, designed by
Tim Tolkien, is on the site where the first four wheel petrol car was made by Lanchester.
See also
- Circulation Theory
- Lanchester's Laws
- Lanchester's Phugoid Theory
Sources
to Frederick Lanchester on his home in Moseley, Birmingham
Frederick William Lanchester, Hon FRAeS (October 23, 1868 - March 8,
1946) was an
England polymath and
engineer who made important contributions to
automotive engineering,
aerodynamics and co-invented the field of operations research. He was also a pioneer British motor car builder, a hobby he eventually turned into a successful car company, and is considered one of the "big three" English car engineers, the others being
Harry Ricardo and Henry Royce.
Fourth to be born in a family of three girls and six boys (one of whom died after a few days) in London,
England, he married Dorothea Cooper but had no children
The Lanchester Legacy, Volume 3, edited John Fletcher, 1996, ISBN 0-905949-47-1. Lanchester entered Hartley University College (now the
University of Southampton) in 1891, and then the National School of Science at Imperial College London. His first post-school work was a theory of aerodynamics, which he developed in 1892 but was persuaded not to publish, as his theories in this "outlandish" field would ruin his reputation as an engineer. He did manage to publish a new system for color photography in 1895, a field of high repute at the time.
Engines and cars
He joined the Forward Gas Engine Company of Birmingham in 1889, and in 1893 set up his own workshop. In 1893 Fred designed and built his first engine (a vertical single cylinder) which was fitted to a flat bottomed boat designed by his brothers. The boat was launched at Salter's slipway in Oxford in 1894 and was probably the first all British
powerboat.In 1895 he and his brother built one of the first petrol cars in England, a single cylinder 5 hp (4 kW)
internal combustion engine with chain drive. Unhappy with the performance and power, they re-built the engine the next year into a two cylinder horizontally opposed version using his new wick
carburetor design. This versions completed a 1,000 mile tour in 1900.Around this time Lanchester invented the Pendulum Governor which was used for controlling the speed of an engine.
Three of the Lanchester brothers started the
Lanchester Engine Company in 1900 to sell his designs on the market. Many features of the original were retained in their production models, including the mid-mounted engine between the front seat that led to the lack of a "hood" area. The transmission was based on his own compound epicyclical gearing, giving three forward speeds, and drove the rear axle through his own
Lanchester worm gearing. The transmission also included a system similar to modern disk brakes that clamped the clutch disk for braking, rather than using a separate system as in most cars.
Lanchester continued to make changes to the design. A water-cooled engine appeared in 1902, and a larger 18 hp model in 1904. The same year he also introduced a slightly larger 20 hp four cylinder design, for which, in order to get the smooth running he demanded, he had to invent the system of twin balancing shafts that are used today on modern designs. A 38 hp six was introduced in 1907, requiring another invention for smooth running, the crankshaft damper.
During this period he also experimented with
fuel injection,
turbochargers, added steering wheels in 1907 and invented the accelerator pedal, which previously would not turn off if the operator had problems. He invented (or was the first to use) detachable wire wheels, bearings that were pressure-fed with oil, stamped steel pistons, piston rings, hollow
connecting rods, the torsional vibration damper, and the harmonic balancer.
Rudyard Kipling was an early owner who used them as a plot device in one of his short stories. The cars were particularly well known for their smooth operation, due to Lanchester's unwillingness to leave well enough alone, tinkering with each completed design to tune both the engine and suspension until it was "perfect". The company sold about 350 cars of various designs between 1900 and 1904, when they went
bankrupt due to the incompetence of the Board of Directors. It was immediately reformed as
The Lanchester Motor Company.
The war
to George Lanchester on his home in Moseley, BirminghamGeorge Lanchester (1874-1970) took over as chief engineer in 1914 when Frederick turned to war efforts. After the war they introduced the more conventional Forty, a rival for the Rolls-Royce 40/50 hp; it was joined in 1924 by an ohc 21 hp six. In 1921 Lanchester was the first company to export left-hand drive cars. Tinted glass was also introduced on these cars for the first time. A 4440 cc straight-eight was launched at the 1928 Southport Rally, again with
overhead cams: it proved to be the last "real" Lanchester, for in 1931 the company was acquired by Daimler Motor Company, and Lanchesters became merely re-clothed Daimlers.
Lanchester's true interest remained mechanical flight, which he had been studying since the early 1890s. Lanchester developed a model for the vortex that occur behind
wings during flight, which included the first full description of
lift (force) and drag (physics), although the formulation was somewhat complex and would have to wait for
Ludwig Prandtl's version before becoming generally useful. He then turned his attention to aircraft stability,
aerodonetics, developing Lanchester's phugoid theory which contained a description of oscillations and stalls. During this work he outlined the basic layout almost all aircraft have used since then.
He published
Aerial Flight in 1907-08 and was invited to join Prime Minister
Herbert Henry Asquith's advisory committee for aeronautics on its formation 1909. An experimental aircraft co-designed by Lanchester did not survive its trial flight in 1911, and he abandoned the practical side of aviation.
He did, however, continue with studies into aviation. During World War I he was particularly interested in predicting the outcome of aerial battles. In 1916 he published
Aircraft in Warfare: The Dawn of the Fourth Arm, which included a description of a series of
differential equations that are today known as
Lanchester's laws. The Laws described how two forces would attrit each other in combat, and demonstrated that the ability of modern weapons to operate at long ranges dramatically changed the nature of combat -- a force that was twice as large had been twice as powerful in the past, but now it was four times, the square of the quotient.
Lancester's Laws were originally applied practically in the
United States to study logistics, where they developed into operations research (OR). Today OR techniques are widely used, perhaps most so in business.
Monument
An open-air sculpture, the Lanchester Car Monument, in the Bloomsbury, Heartlands, area of Birmingham, designed by Tim Tolkien, is on the site where the first four wheel petrol car was made by Lanchester.
See also
Sources
