ČSD Class T 458.1

Czechoslovakian ČSD Class T 458.1 diesel locomotives remain in use as shunters in both Slovakia and the Czech Republic. They are now classified as class 721.[1][page needed]

ČSD Class T 458.1
ČD 721 / ZSSK 721
721 151-9 RJ.jpg
RJ 721.151 at Praha Smíchov station
Type and origin
Power typeDiesel
Build date1961–1968
Total produced221 ČD, ZSCS
49 Private owner
13 Russian Gauge
 • UICBo′Bo′
Gauge1,435 mm (4 ft 8+12 in) standard gauge
1,520 mm (4 ft 11+2732 in)
Length13,280 mm (43 ft 7 in)
Loco weight74 tonnes (73 long tons; 82 short tons)
Prime moverK 6 S 310 DR
Engine type(?)
Performance figures
Maximum speed80 km/h (50 mph)
Power output551 kW (740 hp)
OperatorsČD ZSSK

The locomotives were built using the same hood arrangement and driver's cab as the T 435.0. The 6 S 310 DR diesel engine was also retained. Due to the increased weight of the units, they had a higher tractive effort despite using the same diesel engine. Except for the first five units, the locomotives had an extended wheelset using swing arms with helical spring suspension, offering improved running characteristics. [2]

ČSD built the first 13 locomotives to wide gauge standard, then built 206 locomotives between 1963 to 1965 to standard gauge. The type was also successful in the export market; in addition to the USSR, it was also supplied to Albania, India, Iraq, the GDR and Poland. [2]

See alsoEdit


  1. ^ Bittner, Jaromír; Křenek, Jaroslav; Skála Bohumil; Šrámek, Milan (2008). Czech & Slovak Locomotives 2009. Czech Republic: Gradis Bohemia. ISBN 978-80-86-925-06-6.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. ^ a b "Motorová lokomotiva T 458.1 "Velký hektor"". www.cdnostalgie.cz (in Czech). Retrieved June 19, 2022.