DSB class MY

Infobox Locomotive
name=DSB Class MY
powertype=Diesel-electric

---

caption=VL MY 105 (former DSB MY 1145) in Holbæk.
designer=
builder= Nydqist & Holm AB
ordernumber=
serialnumber=
buildmodel=
builddate=1954 – 1958, 1964 - 1965
totalproduction=59
whytetype=
aarwheels=
uicclass=(A1A)(A1A)
gauge=Standard gauge (1,435 mm)
trucks=
bogies=
leadingsize=
driversize=
wheeldiameter=1,016 mm
trailingsize=
wheelbase=
length=18.90 m
width=3.00 m
height=4.295 m
framesize=
axleload=18 t
weightondrivers=
weight=101.60 t
tenderweight=
locotenderweight=
fueltype=
fuelc
l
lubec
l
coolantc

waterc

tenderc

sandc
l
consumption=
watercons=
electricsystem=
collectionmethod=
primemover=EMD 567B EMD 567C EMD 567 D1 (EMD 645E)
rpmrange=275–800 rpm 275–835 rpm 315–905 rpm
enginetype=2-stroke diesel
aspiration=Roots blower
displacement=
alternator=
generator=
tractionmotors=
boiler=
boilerpressure=
feedwaterheater=
firearea=
tubearea=
fluearea=
tubesandflues=
fireboxarea=
totalsurface=
superheatertype=
superheaterarea=
cylindercount=16
cylindersize=
frontcylindersize=
rearcylindersize=
hpcylindersize=
lpcylindersize=
valvegear=
transmission=
multipleworking=
topspeed=133 km/h
poweroutput=1700 hp convert|1950|hp|abbr=on
tractiveeffort=
factorofadhesion=
trainheating=
locobrakes=
trainbrakes=
safety=ATC (from 1995)
locale=DenmarkThe DSB class MY is a series of diesel-electric locomotives built in the years 1954 - 1965 by Nohab.

History

In the early 50s the DSB was starting to look after a new type of locomotive that could replace the steam locomotive hauled services in Denmark.

The DSB ordered the first four units which arrived to Elsinore in 1954. The locomotives quickly became very popular among both passengers and crew. The units 1101-1105 and 1145-1159 had a 1700 horsepower engine, whilst the units 1106-1144 had a 1950 horsepower engine.

In their early years, the locomotives worked express-trains (later known as InterCity) and heavy freight services, but in their later years they were transferred to smaller regional and light freight services (which many continues to do for private railways in both Denmark, Norway, Germany and Sweden.

In the 80s and 90s the DSB began to have less and less need for them, and the last ordinary MY-hauled train ran in 2001 - one unit however, 1135, is now a special service locomotive which runs special trains - therefore, the DSB still have MY locos in service. The others has either been scrapped or as mentioned above, sold to diverse private operators in Norway, Germany and Sweden.

A very similar locomotive, the Class MX was equally as popular - and many locomotives similar to the MY in other countries exist. Among these, the following can be mentioned:

* The NSB Class Di 3
* The MÁV Class M61
* The CFL Class 1600
* The NMBS/SNCB Class 52-54

See also

Bulldog nose
DSB class MX

References

*cite book |title=DSB litra MY, type 567 |last=Andersen |first=Torben |authorlink= |coauthors= |year=1998 |publisher=Lokomotivets Forlag |location= |isbn=87-90 779-00-2 |pages=
* [http://www.gm-nyt.dk GM-nyt.dk]
* [http://www.jernbanen.dk jernbanen.dk]

External links

* [http://www.roundnoses.com Roundnoses.com]
* [http://www.nohab-gm.de Nohab-GM.de] (German)