streamlined design

f streamlined shape, streamlining

* * *

* * *

f streamlined shape

* * *

Stromlinienform f streamlined shape, streamlining

1 line, tracing.

2 trajectory.

3 product line, line of production.

* * *

► nombre femenino

1 (gen) line

2 (tipo) figure

\

de primera línea first-class, first-rate

en líneas generales in general

guardar la línea to keep one's figure

línea aérea airline

línea continua solid line, unbroken line

línea de meta finishing line

línea de puntos dotted line

línea de salida starting line

* * *

* * *

1. SF

1) (=raya) line

- ser de una o una sola línea

2) [en un escrito] line

- poner unas líneas a algn

3) (Com) (=género, gama) line

4) (Elec) line, cable

5) (Telec) line

6) (Mil) line

7) (Aer, Ferro)

8) (Dep) line

9) (Inform)

10) (=talle) figure

11) (=moda)

12) [de pensamiento, acción] line

13) [genealógica] line

SMF (Dep) linesman, assistant referee

* * *

1)

a) ( raya) line

b) (Art) (dibujo, trazo) line

c) ( de cocaína) (fam) line (colloq)

- línea de demarcación/flotación

2) (Dep)

a) ( en fútbol) line

b) ( en béisbol) drive

- línea de banda

- línea de contacto or golpeo

- línea de llegada

- línea de salida

3)

a) ( renglón) line

b) líneas femenino plural ( carta breve)

4) (fila, alineación) line

5)

a) (Transp)

b) (Elec, Telec) line

c) ( en genealogía) line

d) (Arg) ( de pescar) line

- línea aérea

- línea de montaje

- línea férrea

- línea regular

6) ( sobre un tema) line

7)

a) (estilo, diseño)

b) (gama, colección) line

- línea blanca

8) ( figura)

* * *

= line, line-up, trajectory.

Ex. Longer titles since each title can occupy only one line will be truncated and only brief source references are included.

Ex. The title of the article is 'The information market: a line-up of competitors'.

Ex. In hindsight, it is easy to see a trajectory of inevitability that made MARC, the ISBDs, and AACR2 seem more the result of historical forces than the often faltering and separate steps they were in truth.

----

* acceso en línea = online access.

* acceso mediante línea telefónica = dial-access.

* adquisición en línea = online acquisition.

* aprendizaje en línea = online learning.

* baile en línea = line dance.

* base de datos en línea = online database.

* búsqueda en línea = online searching, online search.

* cabeza de línea = railhead.

* catálogo en línea = online catalogue.

* comercio en línea = online business.

* compra en línea = online shopping.

* conexión a través de línea dedicada = leased line connection.

* continuando con la línea de = in the vein of.

* conversación en línea = online chat.

* cruzar la línea = cross + the line.

* cruzar la línea divisoria = cross + the boundary, cross + the great divide, cross + the dividing line, cross + the line.

* cruzar la línea que separa = cross over + the line separating.

* cruzar las líneas divisorias que separan + Nombre = cross + Adjetivo + lines.

* de línea blanda = soft-line.

* de línea dura = hard-line.

* de líneas rectas = straight-line.

* de primera línea = first-line.

* describir en líneas generales = outline.

* de última línea = streamlined.

* distribuidor de información en línea = host, online host.

* empleado de línea aérea = airline official.

* en el momento de escribir estas líneas = at the time of writing.

* en la línea de = along the lines.

* en la línea de fuego = in the hot seat, in the front line, on the front line.

* en la misma línea de = in the vein of.

* en la misma línea que = in line with.

* en línea = online [on-line], online-based, inline [in-line].

* en línea con = in line with.

* en línea recta = as the crow flies.

* en líneas generales = broadly speaking, generally, loosely, on the whole, in outline, in basic outline, roughly speaking, as a rough guide.

* en línea sucesoria = in line of descent.

* en + Posesivo + línea de tiro = in + Posesivo + sights.

* en primera línea = in the front line, first-line, on the front line.

* enseñanza en línea = online education.

* estado del ordenador en fuera de línea = offlineness.

* estado del ordenador en línea = onlineness.

* estar accesible en línea = go + online.

* facsímil de línea = line-block facsimile.

* foro de debate en línea = online forum.

* fuera de línea = offline [off-line].

* gráfica de líneas = line graph.

* grosor de línea = line-width.

* impresión en línea = online print.

* impresión fuera de línea = offline print.

* impresora de líneas = line printer.

* información en línea = online information.

* juez de línea = linesman, assistant referee.

* línea ADSL (Línea de Subscripción Digital Asimétrica) = ADSL (Asymmetric Digital Subscriber Line).

* línea aérea = airline.

* línea a línea = line-by-line.

* línea arbolada, la = timberline, the, tree line, the.

* línea argumental = line of discussion, line of direction.

* línea base = baseline [base line].

* línea con marcas entrecortadas = dashed line.

* línea curva = curved line.

* línea de acción = course of action.

* línea de actuación = course of action, line of attack, operational line, action line, prong, line of direction.

* línea de agua, la = water line, the.

* línea de alta tensión = power line.

* línea de argumentación = line of discussion.

* línea de búsqueda = query line.

* línea de comunicación = line of communication.

* línea de comunicaciones = communications line.

* línea de demarcación = demarcation line.

* línea dedicada = dedicated line, leased line.

* línea de dirección = line of direction.

* línea de dirección = line of direction.

* línea de falla = fault line.

* línea defensiva = line of defence, defence line.

* línea de ferrocarril = rail line, rail link, railway line, railroad(s), railway(s).

* línea de flotación, la = water line, the.

* línea de fuego = firing line, front-line, line of fire.

* línea de investigación = line of enquiry, line of research, line of enquiry, research front, avenue (for/of) research, research avenue, avenue of investigation, research line.

* línea de investigación futura = avenue (for/of) future research.

* línea de investigación posible = avenue for further research.

* línea del horizonte = skyline.

* línea de los árboles, la = timberline, the, tree line, the.

* línea de mando = line of authority, line of command.

* línea de medio campo = halfway line.

* línea de meta = finish line, finishing line.

* línea de montaje de coches = car assembly line.

* línea de números = number line.

* línea de pensamiento = line of thought.

* línea de productos = product line.

* línea de puntos = dotted line.

* línea de seguridad = lifeline.

* línea de trabajo = line of work.

* línea de transmisión = line transmission.

* línea de vegetación arbórea, la = tree line, the, timberline, the.

* línea de vegetación, la = tree line, the, timberline, the.

* línea de ventas = line.

* línea de vida = lifeline.

* línea directa = hotline [hot-line].

* línea divisoria = cut-off point, demarcation, divide, dividing line, borderline, cut off [cutoff].

* linea divisoria, la = great divide, the.

* línea fija = fixed line.

* línea horizontal = flat.

* línea indicativa de la evolución de una gráfica = trend line [trend-line].

* línea informativa = caption.

* línea internacional de cambio de fecha, la = International Date Line, the.

* línea numérica = number line.

* línea oblicua (/) = oblique stroke (/), oblique line (/), oblique.

* línea recta = straight line.

* líneas de sombras = hachures.

* líneas de transmisión por onda luminosa = light-wave transmission lines.

* línea separatoria = dividing line.

* línea telefónica = phone line, telephone line.

* línea telefónica dedicada = leased telephone line, leased phone line.

* listado de impresora de líneas = line printer output.

* mantenerse en línea con = keep in + line with.

* modalidad en línea = online mode.

* módulo de catálogo de acceso público en línea = online public access catalogue module.

* negocio en línea = online business.

* nueva línea = linefeed.

* OCLC (Centro Bibliotecario en Línea) = OCLC (Online Computer Library Center).

* patinador en línea = inline skater.

* patinaje en línea = inline skating, roller-blading.

* persona que se cuida la línea = weight watcher.

* por línea telefónica = over the telephone line.

* presentación en línea = online display.

* primera línea = front-line [front line], forefront.

* primera línea de defensa = first line of defence.

* recuperación en línea = online retrieval.

* recurso en línea = online resource.

* red en línea = online network.

* revista electrónica en línea = online journal.

* seguir líneas diferentes = be on different lines.

* Servicio de Consulta en Línea de BLAISE = BLAISE-LINE.

* servicio de información en línea = online information service.

* servicio en línea = online service.

* símbolo de avance de línea = line feed character.

* sistema en línea = online system.

* suscripción en línea = online subscription.

* teléfono de línea directa = direct-dial telephone.

* terminal en línea = online terminal.

* tiempo de conexión en línea = online time.

* tienda en línea = online store.

* título por línea = title-a-line.

* tres en línea = noughts and crosses, tic-tac-toe.

* usuario conectado en línea = online user.

* vehículo con ruedas en línea = cycle.

* vehículo de dos ruedas en línea = two-wheeler.

* * *

1)

a) ( raya) line

b) (Art) (dibujo, trazo) line

c) ( de cocaína) (fam) line (colloq)

- línea de demarcación/flotación

2) (Dep)

a) ( en fútbol) line

b) ( en béisbol) drive

- línea de banda

- línea de contacto or golpeo

- línea de llegada

- línea de salida

3)

a) ( renglón) line

b) líneas femenino plural ( carta breve)

4) (fila, alineación) line

5)

a) (Transp)

b) (Elec, Telec) line

c) ( en genealogía) line

d) (Arg) ( de pescar) line

- línea aérea

- línea de montaje

- línea férrea

- línea regular

6) ( sobre un tema) line

7)

a) (estilo, diseño)

b) (gama, colección) line

- línea blanca

8) ( figura)

* * *

* * *

1 (raya) line

una línea curva/recta/quebrada a curved/straight/broken line

línea divisoria dividing line

la línea del horizonte the line of the horizon, the horizon

cortar por la línea de puntos cut along the dotted line

2 ( Art) (dibujo, trazo) line

3 (de cocaína) ( fam); line ( colloq)

continuous o unbroken line

Plimsoll line, load line

demarcation line

water line

life line

heart line

police line

time line

equinoctial circle o line

international date line

meridian

B ( Dep)

1 (en fútbol) line

línea de gol or de fondo goal line

2 (en béisbol) drive

sideline, touchline

line of scrimmage

(en el tenis) baseline; (en el baloncesto) end line

line of scrimmage

finishing line, wire ( AmE)

(en rugby) twenty-two meter line

(en una carrera) finishing line, wire ( AmE); (en fútbol) goal line

starting line

1 (renglón) line

te saltaste una línea you missed out o skipped a line

leer entre líneas to read between the lines

2 líneas fpl

(carta breve): les mandó unas líneas para decir que estaba bien she dropped them a few lines to say that she was well

D (fila, alineación) line

las líneas enemigas the enemy lines

de primera línea ‹tecnología› state-of-the-art;

‹producto› top-quality, high-class; ‹actor/jugador› first-rate

en primera línea: el alero demostró que sigue en primera línea the winger showed that he still ranks among the best o he is still a top-class player

battle line, line of battle

forward line

1 ( Transp):

no hay línea directa, tiene que hacer transbordo en Río there is no direct service, you have to change in Rio

final de la línea end of the line

no hay servicio en la línea 5 (de autobuses) the number 5 (bus) is not running, there are no buses operating o there is no service on the number 5 bus route; (de metro) there is no service on line 5

los barcos que cubren la línea Cádiz-Las Palmas the ships which cover the Cadiz-Las Palmas route o run

2 ( Elec, Telec) line

línea telefónica/telegráfica telephone/telegraph line

no hay líneaor no me da línea the phone o the line is dead

la línea está ocupada the line is busy o ( BrE) engaged

( Tel) party line

( Tel) land line

3 (en genealogía) line

por línea materna on his ( o her etc) mother's side

descendiente por línea directa direct descendant

4 ( Arg) (de pescar) line

airline

assembly line

railroad track ( AmE), railway line ( BrE)

airline ( operating scheduled flights)

(sobre un tema): seguir la línea del partido to follow the party line

los partidarios de una línea más radical those in favor of taking a more radical line

las principales líneas de su programa político the main points of their political program

en la línea de … along the lines of …

el proyecto, en líneas generales, consiste en … broadly speaking o broadly, the project consists of …

en líneas generales las dos versiones coinciden broadly speaking, the two versions coincide, on the whole o by and large the two versions coincide

darse la línea ( Chi): se dio la línea y ganaron los liberales as expected, the liberals won

ser de una sola línea ( Chi); to be straight (as a die) ( colloq)

(estilo, diseño): un coche de líneas aerodinámicas a streamlined car, an aerodynamically designed car

ésta es la línea que llega para la próxima primavera this is the look for next spring

le gusta la ropa de línea clásica she likes the classical look

2 (gama, colección) line

nuestra nueva línea de productos de belleza our new line o range of beauty products

white/brown goods (pl)

(figura): mantener/cuidar la línea to keep/watch one's figure

* * *

◊ la línea de puntos the dotted line;

◊ leer entre líneas to read between the lines

◊ línea aérea airline;

a) (gama, colección) line, range;

◊ nuestra nueva línea de cosméticos our new line o range of cosmetics

b) ( estilo):

◊ una línea más clásica a more classic look

◊ cuidar la línea to watch one's figure

* * *

línea nf

1. [raya, trazo, renglón, límite] line;

una línea recta a straight line;

una línea quebrada a crooked line;

la línea del cielo the skyline;

ir en línea recta to go in a straight line;

leerle a alguien las líneas de la mano to read (the lines on) sb's hand;

estar en línea to be in (a) line;

poner/ponerse en línea to line up;

estacionar en línea to park end-to-end;

escribir o [m5] mandar unas líneas a alguien to drop sb a line;

leer entre líneas to read between the lines

línea discontinua [en carretera] broken white line;

línea divisoria dividing line;

línea de flotación waterline;

línea de mira line of fire;

línea punteada dotted line;

línea de puntos dotted line;

línea de tiro line of fire

2. [ruta] line;

una nueva línea de autobús a new bus route;

han añadido varias paradas a la línea 30 the number 30 bus has several new stops;

la línea circular del metro the Br underground o US subway circle line

línea de ferrocarril railway (line), US railroad track

3. [compañía aérea]

4. [de telecomunicaciones] line;

cortar la línea (telefónica) to cut off the phone;

dar línea a alguien to put in a line for sb;

no hay o [m5] no tenemos línea the line's dead

línea directa direct line;

tiene línea directa con el presidente she has a direct line to the president's office;

línea erótica telephone sex line;

línea exterior outside line;

línea privada private line;

5. [en deportes] line;

la línea defensiva/delantera the back/front line, the defence/attack;

la línea medular the midfield

línea de fondo [en fútbol] goal line [at end of field];

línea de gol goal line [between goalposts];

línea de llegada finishing line;

línea de marca [en rugby] try o goal line;

línea de medio campo halfway line;

línea de meta [en fútbol] goal line;

línea de salida starting line;

línea de saque baseline, service line;

línea de servicio service line;

línea de seis veinticinco [en baloncesto] three-point line;

línea de tiros libres [en baloncesto] free throw line

6. [en comercio] line;

una nueva línea de productos a new line of products

línea marrón brown goods

7. [silueta] [de persona] figure;

guardar/mantener la línea to watch/keep one's figure

8. [contorno]

9. [estilo, tendencia] style;

la línea del partido the party line;

la línea dura del sindicato the union's hard line;

la línea de pensamiento keynesiana Keynesian thinking;

de línea clásica classical;

eso está muy en su línea that's just his style;

seguir la línea de alguien to follow sb's style

línea de investigación line of inquiry

10. [categoría] class, category;

de primera línea [actor, pintor, producto] first-rate;

11. [de parentesco] line;

está emparentada con ella por línea materna she's related to her on her mother's side

12. Informát line;

en línea on-line;

fuera de línea off-line

línea de comando command line

13. [en el bingo] line;

cantar línea to call a line;

¡línea! line!

14. Fam [de cocaína] line

15. Comp

en líneas generales in broad terms;

fueron derrotados en toda la línea they were soundly defeated

* * *

f line;

mantener la línea watch one’s figure;

de primera línea fig first-rate;

tecnología de primera línea state-of-the art technology;

perdieron en toda la línea they were soundly beaten;

entre líneas fig between the lines;

escribir o

poner unas o

dos o

cuatro líneas a alguien drop s.o. a line;

la línea se ha cortado TELEC the line’s gone dead;

no hay línea TELEC the line’s dead

* * *

línea nf

1) : line

línea divisoria: dividing line

línea de banda: sideline

2) : line, course, position

línea de conducta: course of action

en líneas generales: in general terms, along general lines

3) : line, service

línea aérea: airline

línea telefónica: telephone line

* * *

línea n line

SUBJECT AREA: Land transport, Railways and locomotives

[br]

[br]

[br]

Gresley was the son of the Rector of Netherseale, Derbyshire; he was educated at Marlborough and by the age of 13 was skilled at making sketches of locomotives. In 1893 he became a pupil of F.W. Webb at Crewe works, London \& North Western Railway, and in 1898 he moved to Horwich works, Lancashire \& Yorkshire Railway, to gain drawing-office experience under J.A.F.Aspinall, subsequently becoming Foreman of the locomotive running sheds at Blackpool. In 1900 he transferred to the carriage and wagon department, and in 1904 he had risen to become its Assistant Superintendent. In 1905 he moved to the Great Northern Railway, becoming Superintendent of its carriage and wagon department at Doncaster under H.A. Ivatt. In 1906 he designed and produced a bogie luggage van with steel underframe, teak body, elliptical roof, bowed ends and buckeye couplings: this became the prototype for East Coast main-line coaches built over the next thirty-five years. In 1911 Gresley succeeded Ivatt as Locomotive, Carriage \& Wagon Superintendent. His first locomotive was a mixed-traffic 2–6–0, his next a 2–8–0 for freight. From 1915 he worked on the design of a 4–6–2 locomotive for express passenger traffic: as with Ivatt's 4 4 2s, the trailing axle would allow the wide firebox needed for Yorkshire coal. He also devised a means by which two sets of valve gear could operate the valves on a three-cylinder locomotive and applied it for the first time on a 2–8–0 built in 1918. The system was complex, but a later simplified form was used on all subsequent Gresley three-cylinder locomotives, including his first 4–6–2 which appeared in 1922. In 1921, Gresley introduced the first British restaurant car with electric cooking facilities.

With the grouping of 1923, the Great Northern Railway was absorbed into the London \& North Eastern Railway and Gresley was appointed Chief Mechanical Engineer. More 4–6– 2s were built, the first British class of such wheel arrangement. Modifications to their valve gear, along lines developed by G.J. Churchward, reduced their coal consumption sufficiently to enable them to run non-stop between London and Edinburgh. So that enginemen might change over en route, some of the locomotives were equipped with corridor tenders from 1928. The design was steadily improved in detail, and by comparison an experimental 4–6–4 with a watertube boiler that Gresley produced in 1929 showed no overall benefit. A successful high-powered 2–8–2 was built in 1934, following the introduction of third-class sleeping cars, to haul 500-ton passenger trains between Edinburgh and Aberdeen.

In 1932 the need to meet increasing road competition had resulted in the end of a long-standing agreement between East Coast and West Coast railways, that train journeys between London and Edinburgh by either route should be scheduled to take 8 1/4 hours. Seeking to accelerate train services, Gresley studied high-speed, diesel-electric railcars in Germany and petrol-electric railcars in France. He considered them for the London \& North Eastern Railway, but a test run by a train hauled by one of his 4–6–2s in 1934, which reached 108 mph (174 km/h), suggested that a steam train could better the railcar proposals while its accommodation would be more comfortable. To celebrate the Silver Jubilee of King George V, a high-speed, streamlined train between London and Newcastle upon Tyne was proposed, the first such train in Britain. An improved 4–6–2, the A4 class, was designed with modifications to ensure free running and an ample reserve of power up hill. Its streamlined outline included a wedge-shaped front which reduced wind resistance and helped to lift the exhaust dear of the cab windows at speed. The first locomotive of the class, named Silver Link, ran at an average speed of 100 mph (161 km/h) for 43 miles (69 km), with a maximum speed of 112 1/2 mph (181 km/h), on a seven-coach test train on 27 September 1935: the locomotive went into service hauling the Silver Jubilee express single-handed (since others of the class had still to be completed) for the first three weeks, a round trip of 536 miles (863 km) daily, much of it at 90 mph (145 km/h), without any mechanical troubles at all. Coaches for the Silver Jubilee had teak-framed, steel-panelled bodies on all-steel, welded underframes; windows were double glazed; and there was a pressure ventilation/heating system. Comparable trains were introduced between London Kings Cross and Edinburgh in 1937 and to Leeds in 1938.

Gresley did not hesitate to incorporate outstanding features from elsewhere into his locomotive designs and was well aware of the work of André Chapelon in France. Four A4s built in 1938 were equipped with Kylchap twin blast-pipes and double chimneys to improve performance still further. The first of these to be completed, no. 4468, Mallard, on 3 July 1938 ran a test train at over 120 mph (193 km/h) for 2 miles (3.2 km) and momentarily achieved 126 mph (203 km/h), the world speed record for steam traction. J.Duddington was the driver and T.Bray the fireman. The use of high-speed trains came to an end with the Second World War. The A4s were then demonstrated to be powerful as well as fast: one was noted hauling a 730-ton, 22-coach train at an average speed exceeding 75 mph (120 km/h) over 30 miles (48 km). The war also halted electrification of the Manchester-Sheffield line, on the 1,500 volt DC overhead system; however, anticipating eventual resumption, Gresley had a prototype main-line Bo-Bo electric locomotive built in 1941. Sadly, Gresley died from a heart attack while still in office.

[br]

See also: Bulleid, Oliver Vaughan Snell

* * *

SUBJECT AREA: Aerospace

[br]

[br]

[br]

William Henson worked in the lacemaking industry and in his spare time invented many mechanical devices, from a breech-loading cannon to an ice-machine. It could be claimed that he invented the airliner, for in 1842 he prepared a patent (granted in 1843) for an "aerial steam carriage". The patent application was not just a vague outline, but contained detailed drawings of a large monoplane with an enclosed fuselage to accommodate the passengers and crew. It was to be powered by a steam engine driving two pusher propellers aft of the wing. Henson had followed the lead give by Sir George Cayley in his basic layout, but produced a very much more advanced structural design with cambered wings strengthened by streamlined bracing wires: the intended wing-span was 150 ft (46 m). Henson probably discussed the design of the steam engine and boiler with his friend John Stringfellow (who was also in the lacemaking industry). Stringfellow joined Henson and others to found the Aerial Transit Company, which was set up to raise the finance needed to build Henson's machine. A great publicity campaign was mounted with artists' impressions of the "aerial steam carriage" flying over London, India and even the pyramids. Passenger-carrying services to India and China were proposed, but the whole project was far too optimistic to attract support from financiers and the scheme foundered. Henson and Stringfellow drew up an agreement in December 1843 to construct models which would prove the feasibility of an "aerial machine". For the next five years they pursued this aim, with no real success. In 1848 Henson and his wife emigrated to the United States to further his career in textiles. He became an American citizen and died there at the age of 75.

[br]

Adj. attr. up-to-date, präd. up to date, in keeping with the times; (modern) auch modern; (aktuell) current

* * *

seasonable; modern; appropriate; becoming; up-to-date; seemly; streamlined

* * *

1. adj

2. adv

* * *

* * *

I. adj modern, up-to-date

ein \zeitgemäßes Design a modern design

II. adv up-to-date, modern

* * *

Adjektiv contemporary < views>; (modern) up-to-date

* * *

zeitgemäß adj attr up-to-date, präd up to date, in keeping with the times; (modern) auch modern; (aktuell) current

* * *

Adjektiv contemporary < views>; (modern) up-to-date

* * *

modern adj.

seasonable adj.

timely adj.

topical adj. adv.

seasonably adv.

SUBJECT AREA: Land transport, Railways and locomotives, Steam and internal combustion engines

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Orphaned as a child, Hamilton went to work for Southern Pacific Railroad in his teens, and then worked for several other companies. In his spare time he learned mathematics and physics from a retired professor. In 1911 he joined the White Motor Company, makers of road motor vehicles in Denver, Colorado, where he had gone to recuperate from malaria. He remained there until 1922, apart from an eighteenth-month break for war service.

Upon his return from war service, Hamilton found White selling petrol-engined railbuses with mechanical transmission, based on road vehicles, to railways. He noted that they were not robust enough and that the success of petrol railcars with electric transmission, built by General Electric since 1906, was limited as they were complex to drive and maintain. In 1922 Hamilton formed, and became President of, the Electro- Motive Engineering Corporation (later Electro-Motive Corporation) to design and produce petrol-electric rail cars. Needing an engine larger than those used in road vehicles, yet lighter and faster than marine engines, he approached the Win ton Engine Company to develop a suitable engine; in addition, General Electric provided electric transmission with a simplified control system. Using these components, Hamilton arranged for his petrol-electric railcars to be built by the St Louis Car Company, with the first being completed in 1924. It was the beginning of a highly successful series. Fuel costs were lower than for steam trains and initial costs were kept down by using standardized vehicles instead of designing for individual railways. Maintenance costs were minimized because Electro-Motive kept stocks of spare parts and supplied replacement units when necessary. As more powerful, 800 hp (600 kW) railcars were produced, railways tended to use them to haul trailer vehicles, although that practice reduced the fuel saving. By the end of the decade Electro-Motive needed engines more powerful still and therefore had to use cheap fuel. Diesel engines of the period, such as those that Winton had made for some years, were too heavy in relation to their power, and too slow and sluggish for rail use. Their fuel-injection system was erratic and insufficiently robust and Hamilton concluded that a separate injector was needed for each cylinder.

In 1930 Electro-Motive Corporation and Winton were acquired by General Motors in pursuance of their aim to develop a diesel engine suitable for rail traction, with the use of unit fuel injectors; Hamilton retained his position as President. At this time, industrial depression had combined with road and air competition to undermine railway-passenger business, and Ralph Budd, President of the Chicago, Burlington \& Quincy Railroad, thought that traffic could be recovered by way of high-speed, luxury motor trains; hence the Pioneer Zephyr was built for the Burlington. This comprised a 600 hp (450 kW), lightweight, two-stroke, diesel engine developed by General Motors (model 201 A), with electric transmission, that powered a streamlined train of three articulated coaches. This train demonstrated its powers on 26 May 1934 by running non-stop from Denver to Chicago, a distance of 1,015 miles (1,635 km), in 13 hours and 6 minutes, when the fastest steam schedule was 26 hours. Hamilton and Budd were among those on board the train, and it ushered in an era of high-speed diesel trains in the USA. By then Hamilton, with General Motors backing, was planning to use the lightweight engine to power diesel-electric locomotives. Their layout was derived not from steam locomotives, but from the standard American boxcar. The power plant was mounted within the body and powered the bogies, and driver's cabs were at each end. Two 900 hp (670 kW) engines were mounted in a single car to become an 1,800 hp (l,340 kW) locomotive, which could be operated in multiple by a single driver to form a 3,600 hp (2,680 kW) locomotive. To keep costs down, standard locomotives could be mass-produced rather than needing individual designs for each railway, as with steam locomotives. Two units of this type were completed in 1935 and sent on trial throughout much of the USA. They were able to match steam locomotive performance, with considerable economies: fuel costs alone were halved and there was much less wear on the track. In the same year, Electro-Motive began manufacturing diesel-electrie locomotives at La Grange, Illinois, with design modifications: the driver was placed high up above a projecting nose, which improved visibility and provided protection in the event of collision on unguarded level crossings; six-wheeled bogies were introduced, to reduce axle loading and improve stability. The first production passenger locomotives emerged from La Grange in 1937, and by early 1939 seventy units were in service. Meanwhile, improved engines had been developed and were being made at La Grange, and late in 1939 a prototype, four-unit, 5,400 hp (4,000 kW) diesel-electric locomotive for freight trains was produced and sent out on test from coast to coast; production versions appeared late in 1940. After an interval from 1941 to 1943, when Electro-Motive produced diesel engines for military and naval use, locomotive production resumed in quantity in 1944, and within a few years diesel power replaced steam on most railways in the USA.

Hal Hamilton remained President of Electro-Motive Corporation until 1942, when it became a division of General Motors, of which he became Vice-President.

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