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Everard Richard Calthrop (3 March 1857 – 30 March 1927) was a British
railway Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in railway track, tracks, which usually consist of two parallel steel railway track, rails. Rail transport is one of the two primary means of ...
engineer Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...
and
inventor An invention is a unique or novel device, method, composition, idea, or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It may also be an entirely new concept. If an ...
. Calthrop was a notable promoter and builder of
narrow-gauge railway A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge (distance between the rails) narrower than . Most narrow-gauge railways are between and . Since narrow-gauge railways are usually built with tighter cur ...
s, especially of
narrow gauge A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge (distance between the rails) narrower than . Most narrow-gauge railways are between and . Since narrow-gauge railways are usually built with Minimum railw ...
, and was especially prominent in India. His most notable achievement was the Barsi Light Railway, but he is best known in his home country for the Leek and Manifold Valley Light Railway. Calthrop has been described as a "railway genius".Bennett, Paul ''Pickled Passengers – The Narrow Gauge number 219''. Narrow Gauge Railway Society. Later in life he took an interest in
aviation Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' include fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as h ...
, patenting some early designs for
parachute A parachute is a device designed to slow an object's descent through an atmosphere by creating Drag (physics), drag or aerodynamic Lift (force), lift. It is primarily used to safely support people exiting aircraft at height, but also serves va ...
s.


Early life and career

Calthrop was born on 3 March 1857, the eldest son of farmer Everard Calthrop. He had six brothers, one of whom was Sir Guy Calthrop, general manager of the
London and North Western Railway The London and North Western Railway (LNWR, L&NWR) was a British railway company between 1846 and 1922. In the late 19th century, the LNWR was the largest joint stock company in the world. Dubbed the "Premier Line", the LNWR's main line connec ...
. The family lived at Deeping Fen,
Lincolnshire Lincolnshire (), abbreviated ''Lincs'', is a Ceremonial counties of England, ceremonial county in the East Midlands and Yorkshire and the Humber regions of England. It is bordered by the East Riding of Yorkshire across the Humber estuary to th ...
, where Calthrop was born, and later at
Sutton Sutton (''south settlement'' or ''south town'' in Old English) may refer to: Places United Kingdom England In alphabetical order by county: * Sutton, Bedfordshire * Sutton, Berkshire, a List of United Kingdom locations: Stu-Sz#Su, location * S ...
in the
Isle of Ely The Isle of Ely () is a historic region around the city of Ely, Cambridgeshire, Ely in Cambridgeshire, England. Between 1889 and 1965, it formed an Administrative counties of England, administrative county. Etymology Its name has been said to ...
. Calthrop was educated at
Uppingham School Uppingham School is a public school (English fee-charging boarding and day school for pupils 13–18) in Uppingham, Rutland, England, founded in 1584 by Robert Johnson, the Archdeacon of Leicester, who also established Oakham School. ...
.Hughes, Hugh 1994 ''Indian Locomotives Pt. 3, Narrow Gauge 1863-1940''. Continental Railway Circle.Gratton, Robert, 2005,''The Leek & Manifold Valley Light Railway'', RCL Publications. Calthrop started work with
Robert Stephenson and Company Robert Stephenson and Company was a locomotive manufacturing company founded in 1823 in Forth Street, Newcastle upon Tyne in England. It was the first company in the world created specifically to build Steam locomotive, railway engines. Famou ...
and then was apprenticed to the London & North Western Railway at
Crewe Crewe () is a railway town and civil parish in the unitary authority of Cheshire East in Cheshire, England. At the 2021 United Kingdom census, 2021 census, the parish had a population of 55,318 and the built-up area had a population of 74,120. ...
in 1874. In 1879 he joined the
Great Western Railway The Great Western Railway (GWR) was a History of rail transport in Great Britain, British railway company that linked London with the southwest, west and West Midlands (region), West Midlands of England and most of Wales. It was founded in 1833, ...
, where he rose to assistant manager of the Carriage and Wagon Works. In 1882 he went to India to join the Great Indian Peninsula Railway as a
locomotive A locomotive is a rail transport, rail vehicle that provides the motive power for a train. Traditionally, locomotives pulled trains from the front. However, Push–pull train, push–pull operation has become common, and in the pursuit for ...
inspector.Turner, Keith 1980, ''The Leak and Manifold Light Railway'', Newton Abbot, David & Charles. Once in India, Calthrop came to see narrow-gauge railways as a way to help develop the country. This led him to chairing a Government committee to investigate light railways throughout India. He then published a pamphlet entitled ''A System of Standard Details as applied to the Construction of Rolling Stock in India''. As a result of this pamphlet, the Indian Government adopted systems of uniformity of gauge and equipment throughout the country, and eventually adopted gauge as the standard narrow gauge throughout the country. Calthrop requested leave in 1886 to investigate proposals for independent branch lines. He identified two schemes of particular interest, a tramway connecting the
Hindu Hindus (; ; also known as Sanātanīs) are people who religiously adhere to Hinduism, also known by its endonym Sanātana Dharma. Jeffery D. Long (2007), A Vision for Hinduism, IB Tauris, , pp. 35–37 Historically, the term has also be ...
religious centre of
Nasik Nashik, formerly Nasik, is a city in the northern region of the Indian state of Maharashtra situated on the banks of the river Godavari River, Godavari, about northeast of the state capital Mumbai. Nashik is one of the Hindu pilgrimage sit ...
with the railway, and a branch line to the town of Barsi. The Great Indian Peninsula Railway approved both schemes, and Calthrop surveyed both lines. In 1887, he registered the Indian Railways Feeder Lines Company in London to promote the construction of feeders to the railway. The Great Indian Peninsula Railway suggested that he either return to his duties as a locomotive inspector or, with their support, resign to further promote branch lines. His health was failing, and so in 1889 Calthrop resigned from the Great Indian Peninsula Railway. Working as a consultant he then supervised the construction of the gauge horse-powered Nasik Tramway, using his previous survey.


Move to Liverpool

Returning to the United Kingdom in 1892, Calthrop established a railway engineering consulting practice in
Liverpool Liverpool is a port City status in the United Kingdom, city and metropolitan borough in Merseyside, England. It is situated on the eastern side of the River Mersey, Mersey Estuary, near the Irish Sea, north-west of London. With a population ...
, where three of his brothers had started a stockfeed company. Soon Calthrop had entered into a partnership with them and spent much of the next two years designing equipment for feed production. He took out a number of
patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...
s relating to the equipment and to refrigerated transport. While Calthrop was resident in Liverpool, the
Chamber of Commerce A chamber of commerce, or board of trade, is a form of business network. For example, a local organization of businesses whose goal is to further the interests of businesses. Business owners in towns and cities form these local societies to a ...
was concerned future expansion was being limited by the railway companies that linked that city with
Manchester Manchester () is a city and the metropolitan borough of Greater Manchester, England. It had an estimated population of in . Greater Manchester is the third-most populous metropolitan area in the United Kingdom, with a population of 2.92&nbs ...
, and invited proposals for alternative methods for moving goods. Calthrop proposed a system of narrow-gauge railways linking the two cities, running along streets directly serving factories. His proposal was highly commended, but the proposed street running precluded its adoption. Calthrop was also interested in road transport. He was a member of the Self-Propelled Traffic Association and in May 1898 was a judge at their trials for "motor vehicles for heavy traffic", held in Liverpool. The winner was a
Thornycroft Thornycroft was an English vehicle manufacturer which built coaches, buses, and trucks from 1896 until 1977. History In 1896, naval engineer John Isaac Thornycroft formed the Thornycroft Steam Carriage and Van Company which built its f ...
4-ton
steam wagon A steam wagon (or steam lorry, steam waggon or steamtruck) is a Steam power, steam-powered truck for carrying freight. It was the earliest form of lorry (truck) and came in two basic forms: ''overtype'' and ''undertype'', the distinction being t ...
. Later he was a foundation member of the
Royal Automobile Club The Royal Automobile Club is a British private Club (organization)#Country or sports club, social and athletic club. It has two clubhouses: one in London at 89 Pall Mall, London, Pall Mall, and the other in the countryside at Woodcote Park, ne ...
.


Development of narrow-gauge concepts and the Barsi Light Railway

During his time in India Calthrop developed his ideas on the construction of narrow-gauge railways. He surmised that the axle load on the
axle An axle or axletree is a central shaft for a rotation, rotating wheel and axle, wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In ...
s of all
rolling stock The term rolling stock in the rail transport industry refers to railway vehicles, including both powered and unpowered vehicles: for example, locomotives, Railroad car#Freight cars, freight and Passenger railroad car, passenger cars (or coaches) ...
, including locomotives, could be equal, allowing a maximum loading of goods wagons. He settled on a loading of per
axle An axle or axletree is a central shaft for a rotation, rotating wheel and axle, wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In ...
, which was light enough to allow railway lines to be built with rail. It also allowed the loading of one capacity 4-wheel standard-gauge wagon to be carried on a single bogie narrow-gauge wagon. Further, he argued that using a track gauge of gave the greatest capacity as a percentage of capital cost. He estimated a gauge railway could be built to four times the length of a standard-gauge railway for the same capital cost.Calthrop, E. R., 1997,''Light Railway Construction'', Plateway Press. Calthrop had been engaged in negotiations with the Indian government for concessions to build a railway from Barsi Road to Barsi since 1887. In 1895, negotiations reached a satisfactory conclusion, and Calthrop formed a new company to build the Barsi Light Railway, and employed himself as consulting engineer. The railway became a showcase for his ideas. Five 0-8-4T locomotives, with even distribution of axle load, were constructed to Calthrop's specification by Kitson & Co. The goods rolling stock was constructed on common pressed steel underframes, reducing
tare weight Tare weight , sometimes called unladen weight, is the weight of an empty vehicle or container. By subtracting tare weight from gross weight ( laden weight), one can determine the weight of the goods carried or contained (the net weight). Ety ...
and maximising potential wagon loads. Calthrop recognised the importance of railways in warfare, and designed the rolling stock to facilitate the movement of troops and equipment. Rolling stock rode on pressed-steel Fox bogies, using the
Timmis system Timmis was an innovative design of double coiled springs, originally used for railway rolling stock, such as on the Barsi Light Railway c1889, as formulated by Everard Calthrop (1857–1927). Inventor The inventor was Illius Augustus Timmis ...
of double coiled springs.anon ''Engineering'' 12 January 1897. The line was constructed with rail inclination, then a new idea, which involves tilting the rail a few degrees to make its surface more nearly parallel with that of the tyre. Inclination is now applied universally to railways. The rolling stock could accept radius curves. Prior to shipment of the rolling stock to India, Calthrop and the manufacturer ( Leeds Forge Company) conducted tests on a specially-built test track located at Newlay, near
Leeds Leeds is a city in West Yorkshire, England. It is the largest settlement in Yorkshire and the administrative centre of the City of Leeds Metropolitan Borough, which is the second most populous district in the United Kingdom. It is built aro ...
. The line was opened for inspection by railway officials and journalists, and a number of reports were published in the technical railway press.anon ''E R Calthrop & the Newlay Exhibition'' Narrow Gauge & Industrial Railway Modelling Review No. 69 Jan 2007 The Barsi Light Railway opened in 1897, and was extended on a number of occasions until it reached a total length of in 1927. The line is seen as having revolutionised the narrow-gauge railway system on Indian subcontinent, and the railway was immensely successful, establishing Calthrop as one of the leading figures in the field. Calthrop remained consulting engineer until he retired due to poor health two years before his death. The Barsi Light Railway continued to be operated as a privately owned railway until 1954 when it was purchased by the Indian government, and continued to operate as a narrow-gauge railway until conversion to
broad gauge A broad-gauge railway is a railway with a track gauge (the distance between the rails) broader than the used by standard-gauge railways. Broad gauge of , more known as Russian gauge, is the dominant track gauge in former Soviet Union countries ...
began in the late 1990s as part of
Indian Railways Indian Railways is a state-owned enterprise that is organised as a departmental undertaking of the Ministry of Railways (India), Ministry of Railways of the Government of India and operates India's national railway system. , it manages the fou ...
conversion program for all metre- and narrow-gauge lines.Marshall, Lawrence C., 2001 ''Indian Narrow Gauge Steam Remembered'' Plateway Press, East Harling


Involvement in other railways

With the success of the Barsi Light Railway, Calthrop was in demand as a consultant for other narrow-gauge railway projects.


Barbados Railway

The Barbados Railway opened in 1883 as a gauge railway from
Bridgetown Bridgetown (UN/LOCODE: BB BGI) is the Capital city, capital and largest city of Barbados. Formerly The Town of Saint Michael, the Greater Bridgetown area is located within the Parishes of Barbados, parish of Saint Michael, Barbados, Saint Mic ...
to
St Andrew Andrew the Apostle ( ; ; ; ) was an apostle of Jesus. According to the New Testament, he was a fisherman and one of the Apostles in the New Testament, Twelve Apostles chosen by Jesus. The title First-Called () used by the Eastern Orthodox Chu ...
,
Barbados Barbados, officially the Republic of Barbados, is an island country in the Atlantic Ocean. It is part of the Lesser Antilles of the West Indies and the easternmost island of the Caribbean region. It lies on the boundary of the South American ...
. By 1897, the railway and its rolling stock was in very poor condition. Further, much of the railway had been constructed with rail too light for the locomotives. A new company was established in 1898 to rebuild and operate the railway, and Calthrop was engaged as consulting engineer. Calthrop arranged for the railway to be rebuilt in gauge, and had
Baldwin Locomotive Works The Baldwin Locomotive Works (BLW) was an American manufacturer of railway locomotives from 1825 to 1951. Originally located in Philadelphia, Pennsylvania, it moved to nearby Eddystone, Pennsylvania, Eddystone in the early 20th century. The com ...
build four new locomotives, two
2-8-2 Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, eight powered and coupled driving wheels on four axles and two trailing wh ...
T's, a
2-6-0 Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, six powered and coupled driving wheels on three axles and no trailing wheels. T ...
T and an 0-6-0T.Horsford, Jim 2004 ''From the Caribbean to the Atlantic: a brief history of the Barbados Railway''. Locomotives International.


Welshpool and Llanfair Light Railway

Calthrop appeared at the Light Railway Inquiry for the Welshpool and Llanfair Light Railway on 3–4 August 1897, and spoke particularly on the proposed open level crossings and the use of
transporter wagon A transporter wagon, in railway terminology, is a goods wagon, wagon (International Union of Railways, UIC) or railroad car (US) designed to carry other railway equipment. Normally, it is used to transport equipment of a different rail gauge. ...
s. Calthrop claimed it only took three minutes to transfer wagons, based on his experience on the Barsi Light Railway. However, the order was not made until 8 September 1899, and in early 1900, the proprietors reached agreement with the
Cambrian Railways The Cambrian Railways owned of Railway track, track over a large area of mid Wales. The system was an amalgamation of a number of railways that were incorporated in 1864, 1865 and 1904. The Cambrian connected with two larger railways with c ...
to build the line. Their engineer, Alfred J. Collins, took charge of the engineering requirements, with consequent conservative 4-wheel wagons and other provisions.Cartwright R.J., 2002, ''The Welshpool and Llanfair'', Rail Romances


Victorian Railways narrow-gauge lines

In 1898 Calthrop corresponded with the government of the colony of Victoria, Australia, regarding proposals for the construction of narrow-gauge lines in that colony. Subsequently, on his advice, the gauge of the railways as built was changed from to .Downs, Edward A. 1963 ''Speed Limit 20''. Australian Railway Historical Society.


Fayoum Light Railway

Calthrop was appointed to advise on engineering matters for this gauge
Egypt Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...
ian light railway, construction of which began in 1898. The railway comprised seven, mostly roadside, branch lines with a total length of . The Fayoum Light Railway served an irrigation district south of
Cairo Cairo ( ; , ) is the Capital city, capital and largest city of Egypt and the Cairo Governorate, being home to more than 10 million people. It is also part of the List of urban agglomerations in Africa, largest urban agglomeration in Africa, L ...
, centred on the provincial capital of Medinet-el-Fayum. Calthrop used pictures of rolling stock from the railway to illustrate a chapter he wrote for the book ''Pioneer Irrigation and Light Railways''.


Serbian narrow-gauge railways

Calthrop was one of several foreign concessionaires involved with the initial development of gauge railways in Serbia after 1898.Chester, Keith. 2008 ''The Narrow Gauge Railways of Bosnia-Hercegovina''. Frank Setvalls Forlag, Malmo.


Cleobury Mortimer and Ditton Priors Light Railway

The Cleobury Mortimer and Ditton Priors Light Railway was a long standard-gauge branch line linking the Great Western Railway at
Cleobury Mortimer Cleobury Mortimer (, ) is a market town and civil parishes in England, civil parish in south-east Shropshire, England, which had a population of 3,036 at the 2011 United Kingdom census, 2011 census. It was granted a market charter by King Henry ...
in
Shropshire Shropshire (; abbreviated SalopAlso used officially as the name of the county from 1974–1980. The demonym for inhabitants of the county "Salopian" derives from this name.) is a Ceremonial counties of England, ceremonial county in the West M ...
with mineral deposits in the Clee Hills. Calthrop was appointed Consulting Engineer in 1900, responsible for surveying the route and preparing the construction plans.


Leek and Manifold Valley Light Railway

In the United Kingdom Calthrop is most associated with the Leek and Manifold Valley Light Railway. The line had been promoted under the Light Railways Act, and the initial plan was to build a railway of gauge to be powered by
electricity Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwel ...
. Under the influence of one of the Light Railway Commissioners the company directors commissioned a report on the proposed line from Calthrop in mid-1900. In early December the railway's engineer died, and on 19 December 1900 the Directors sat down to consider both a replacement and Calthrop's report. Calthrop proposed specifications for the line which would result in substantial savings in construction costs, and so he was offered the position of engineer, which he promptly accepted. Calthrop constructed the line for £35,944, £11,000 less than the original estimate. He had Kitson & Co construct two 2-6-4T locomotives, similar in outline but smaller than the Barsi Light Railway locomotives. Goods rolling stock included four coaches, two
bogie A bogie ( ) (or truck in North American English) comprises two or more Wheelset (rail transport), wheelsets (two Railroad wheel, wheels on an axle), in a frame, attached under a vehicle by a pivot. Bogies take various forms in various modes ...
open wagons and one bogie van, once again similar to Barsi stock. He also introduced four
transporter wagon A transporter wagon, in railway terminology, is a goods wagon, wagon (International Union of Railways, UIC) or railroad car (US) designed to carry other railway equipment. Normally, it is used to transport equipment of a different rail gauge. ...
s, designed to transport
standard-gauge A standard-gauge railway is a railway with a track gauge of . The standard gauge is also called Stephenson gauge (after George Stephenson), international gauge, UIC gauge, uniform gauge, normal gauge in Europe, and SGR in East Africa. It is the ...
wagons. Each station on route had a short section of standard-gauge track where the wagons could be placed. The use of transporter wagons eliminated transshipment, and removed the need for large numbers of goods wagons.


Matheran Light Railway

The Matheran Light Railway is a mountain railway near
Mumbai Mumbai ( ; ), also known as Bombay ( ; its official name until 1995), is the capital city of the Indian state of Maharashtra. Mumbai is the financial capital and the most populous city proper of India with an estimated population of 12 ...
, India, and opened in 1905. Unusually for a railway for which Caltrhrop was consulting engineer, it was of gauge, with tight curves and 1 in 20 (5%) grades. Calthrop designed a 0-6-0T with Klein-Linder articulated coupled axles to provide a flexible wheelbase, and four were supplied by Orenstein & Koppel. Calthrop's firm also supplied the wagon stock and the points and crossings for the railway.Bhandari, R. R. 2004 ''Matheran Light Railway (1904-2003)''. National Railway Museum New Delhi.


Arakan Light Railway

In 1910 Calthrop was engaged as consulting engineer by the promoters of a new railway between Buthidaung and Maungdaw in
Burma Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and ha ...
, later known as the Arakan Light Railway. Calthrop had the proposed gauge changed from
narrow gauge A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge (distance between the rails) narrower than . Most narrow-gauge railways are between and . Since narrow-gauge railways are usually built with Minimum railw ...
to narrow gauge. For this railway Calthrop had built two Garratt locomotives, to which he had attached plates reading "E.R.Calthrop's System of Narrow Gauge Mountain Railways".Parkes, Kevin, 1993, ''The Arakan Light Railway'' Indian Railways Study Group Newsletter issue 8, January 1993 Calthrop was an early adopter of the Garratt type, this being the ninth order for Garratts taken by Beyer-Peacock, and the smallest Garratt design ever built by them.Durrant,A.E. 1981, ''Garratt Locomotives of the World'' David & Charles


Patents for parachutes

Calthrop was a close personal friend of
Charles Rolls Charles Stewart Rolls (27 August 1877 – 12 July 1910) was a British motoring and aviation pioneer. With Henry Royce, he co-founded the Rolls-Royce Limited, Rolls-Royce car manufacturing firm. He was the first Briton to be killed in an aeron ...
, of
Rolls-Royce Rolls-Royce (always hyphenated) may refer to: * Rolls-Royce Limited, a British manufacturer of cars and later aero engines, founded in 1906, now defunct Automobiles * Rolls-Royce Motor Cars, the current car manufacturing company incorporated in ...
fame. Rolls was a pioneer aviator, being the first man to fly across the
English Channel The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busi ...
in both directions. On 12 July 1910 Calthrop accompanied him to the Bournemouth International Aviation Meeting, and was present when Rolls died after he lost control of his
biplane A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While ...
and crashed. That and a similar, non-fatal, accident involving his son Tev, led Calthrop to believe that a parachute could be used to save pilots in similar circumstances. In 1913 he patented his first
parachute A parachute is a device designed to slow an object's descent through an atmosphere by creating Drag (physics), drag or aerodynamic Lift (force), lift. It is primarily used to safely support people exiting aircraft at height, but also serves va ...
. As
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
progressed he continued to develop his parachute. In 1915 he offered it to the
Royal Flying Corps The Royal Flying Corps (RFC) was the air arm of the British Army before and during the First World War until it merged with the Royal Naval Air Service on 1 April 1918 to form the Royal Air Force. During the early part of the war, the RFC sup ...
, and successful tests were completed at the time. An unofficial report offered the opinion that parachutes "might impair the fighting spirit of pilots" and the offer was rejected. Calthrop was encouraged to remain quiet about his invention, but faced with increasing losses of pilots he publicised the parachute in 1917. Despite a campaign by some pilots, the Royal Flying Corps declined to introduce parachutes during World War I, although air forces of most other nations did so. Calthrop's "Guardian Angel" parachute received much praise and was used during the war to drop agents behind enemy lines. In October 1918 an article on use of parachutes stated that the "Guardian Angel" was one of the best known and that "balloonists can take their perilous leap, when attacked by a Hun scout, with real confidence in a safe landing". By 1918 it was known that the Germans were fully aware of Calthrop's work, and supplied their pilots with a similar design. However, when the Royal Air Force finally adopted parachutes after the war, they chose an American design. In 1916 Calthrop also patented an
ejector seat In aircraft, an ejection seat or ejector seat is a system designed to rescue the aircraft pilot, pilot or other aircrew, crew of an aircraft (usually military) in an emergency. In most designs, the seat is propelled out of the aircraft by an exp ...
for aircraft using
compressed air Compressed air is air kept under a pressure that is greater than atmospheric pressure. Compressed air in vehicle tires and shock absorbers are commonly used for improved traction and reduced vibration. Compressed air is an important medium for t ...
.


Private life

During his time in India, Calthrop made occasional trips back to Britain. On one such trip he married Isabel Mary Earle, the daughter of the Reverend Walter Earle, a friend of his parents. The wedding took place on 19 November 1890 at the Bilton Parish Church, Rugby. They had four children, Everard Earle (Tev, b. 1892), Keith de Suffield (b. 1894), Isabelle Iris (b. 1895), and Betty Marion (b. 1899). Tev joined the army and became a Colonel in the
Royal Engineers The Corps of Royal Engineers, usually called the Royal Engineers (RE), and commonly known as the ''Sappers'', is the engineering arm of the British Army. It provides military engineering and other technical support to the British Armed Forces ...
, while Keith, after a stint in the Royal Engineers went on to become Assistant General Manager and Mechanical Engineer of the Barsi Light Railway, a post he held until 1932. Calthrop had a great interest in breeding
Arabian horse The Arabian or Arab horse ( , DIN 31635, DMG ''al-ḥiṣān al-ʿarabī'') is a horse breed, breed of horse with historic roots on the Arabian Peninsula. With a distinctive head shape and high tail carriage, the Arabian is one of the most easi ...
s. Following the long-term rental of a villa in Goldings Road,
Loughton Loughton () is a suburban town and civil parish in the Epping Forest District of Essex. The town borders Waltham Abbey, Theydon Bois, Chigwell, Chingford, and Buckhurst Hill, and lies north-east of Charing Cross. For statistical purposes ...
, Essex, he purchased a permanent home, Goldings, at Clays Lane in Loughton, with stables and of grounds. It was here that he bred his horses and developed his theories of horse training. Calthrop rejected the cruel methods of breaking horses common in that era, and practiced gentle methods. Such was his concern for his horses that he had them humanely destroyed rather than have them commandeered by the British army at the start of the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
. After the war he was able to return to his horses, and wrote an authoritative book, ''The Horse, as Comrade and Friend'', published in 1920. Calthrop was a prominent member of the Arab Horse Society, and received commendations for his stallion, Fitz, at its first show in 1919. Developing and promoting his parachute had left Calthrop drained, both financially and physically. Failing health forced him to resign his position as consulting engineer for the Barsi Railway in 1925, although he remained a director. Calthrop died at his
Paddington Paddington is an area in the City of Westminster, in central London, England. A medieval parish then a metropolitan borough of the County of London, it was integrated with Westminster and Greater London in 1965. Paddington station, designed b ...
, London, home on 30 March 1927, in the company of his son, Tev. He was seventy years old. Calthrop is commemorated by a
blue plaque A blue plaque is a permanent sign installed in a public place in the United Kingdom, and certain other countries and territories, to commemorate a link between that location and a famous person, event, or former building on the site, serving a ...
on Goldings, unveiled in June 2008.


Other narrow-gauge pioneers

*
Paul Decauville Paul Decauville (; 7 June 1846–1922) was a French engineer and businessman. He was also mayor of Evry-Petit Bourg and senator from Seine-et-Oise. He is the founder of a manufacturing company that bears his name ( Decauville, established in 187 ...
* Robert Fairlie * Abraham Fitzgibbon * Thomas Hall * Carl Abraham Pihl


References

{{DEFAULTSORT:Calthrop, Everard 1857 births 1927 deaths Railway officers in British India English civil engineers 19th-century British inventors British railway civil engineers 2 ft 6 in gauge railways People educated at Uppingham School