Tatra KT8D5

Tatra KT8D5
Tatra KT8D5 tram modernized to type KT8D5R.N2 (a new low-floor section) in Košice
In service	1986–present
Manufacturer	ČKD Tatra
Constructed	1986–1991(1993 KT8D5SU)
Entered service	1986
Number built	206
Capacity	231 (177 standing, 54 seated)[1]
Specifications
Car length	30,300 mm (99 ft 5 in) (without couplers)[2]
Width	2,500 mm (8 ft 2 in)[2]
Height	3,500 mm (11 ft 6 in)[2]
Doors	5 per side
Articulated sections	2
Wheel diameter	700 mm (2 ft 4 in) (new)[2]
Wheelbase	1,900 mm (6 ft 3 in)[2]
Maximum speed	65 km/h (40 mph)[1]
Weight	38 t (38,000 kg)[2]
Engine type	TE 023
Traction motors	8
Power output	8 x 45 kW
Electric system(s)	600 V DC[2]
Current collector(s)	Pantograph
Wheels driven	16
Bogies	4
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge / 1,524 mm (5 ft)[2]

Tatra KT8D5 is a bidirectional light rail vehicle currently (January 2025, and not expected to retire soon, except in Brno) operating in Europe and Asia. In several variations, it was designed and manufactured by Czech engineering corporation ČKD Tatra from 1984 to 1999 and a total of 206 cars were sold. The vehicle has an angular design similar to Tatra T6A5, Tatra RT8D5M, and Tatra KT4 both outside and inside. During its production period, several versions of KT8D5 were sold.

History

A KT8D5 tram in Pyongyang

The need for new generation vehicles for Czechoslovakia started in late 1970s. The original goal was to make a light rail vehicle with a higher capacity to meet growing demands for public transport. The project to design and build the KT8D5 was approved in 1982, and the first prototype was constructed in 1984. The first vehicles entered operation 1986 in Prague, Brno, Most and Košice.

Design and construction

The Tatra KT8D5 is a large, high capacity tram constructed using three articulated body sections riding on four bogies. The middle section is located on two Jacobs bogies. The tram is bidirectional and has driving cabs at each end and doors on both sides. There are two pantographs, one located on the each end of vehicle. With a capacity of up to 231 passengers, these trams are operated on the busiest routes and during peak hours; due to their bidirectional capability they are also frequently used on routes without termini and during track maintenance for continued operation on only one track in both directions.

Modernization

A new medium low-floor cell ML8LF was installed in Tatra KT8D5 trams in the Czech Republic and Slovakia, and in one tram in Strausberg, Germany.^[citation needed] The Thongil 181, which is based on the KT8D5, was introduced in Pyongyang, North Korea in 2018.[3]

Tatra KT8D5R.N2 is the oldest modernization of KT8D5, that were in Brno and Košice. New major feature was the low-floor ML8LF. 1737 is the first prototype of KT8D5R.N2 in Brno that used to be in Košice with number 519. 39 of them were modernized.

From 1998 to 1999, ČKD built seven Tatra KT8D5N trams with a medium low-floor cell, IGBT transistors, and TV14 electrical equipment.

References

This article incorporates information from the corresponding article on the Czech Wikipedia.

1. admin (28 July 2021). "Tram CKD Tatra KT8D5". MB Drive Services. Retrieved 26 December 2021.
2. ČKD Tatra, a.s. (1997). "TRAMCAR TYPE KT8D5" (PDF). Archived (PDF) from the original on 7 January 2012. Retrieved 26 December 2021.
3. "Severní Korea má (údajně) novou tramvaj". Československý dopravák (in Czech). 5 August 2018. Retrieved 22 January 2022.

External links

Media related to Tatra KT8D5 at Wikimedia Commons