TCDD HT80000

The unit HT80101 was involved in the Ankara train collision on 13 December 2018.[10]

A white - turquoise - grey colour scheme has been selected for the livery of the TCDD HT80000 high-speed train sets, instead of the traditional white - red - dark blue colour scheme used on the TCDD HT65000 high-speed train sets.

The appearance of the TCDD HT80000 is closer to that of the '2nd generation' Velaro trains (e.g. Eurostar E320) as opposed to the look of older Velaros like the ICE 3M, that have the lights closer to the coupler, as opposed to the newer position against the windscreen surrounds, although if you look more closely this is the fourth stage of evolution which can be seen on the outside with the new Velaro. The door windows are larger, square windows, as opposed to the airplane style oval windows on older Velaro models. All electrical equipment is covered, that also enhances aerodynamics.

TCDD HT80001 (Velaro D) at the ATG terminal in Ankara. It has 444 passenger seats and can reach a top speed of 320 km/h (199 mph).

Each eight-car, 200 m (656 ft 2 in) set has 32 axles, of which 16 are driven. This gives the following wheel arrangement:

Bo’Bo’+2’2’+Bo’Bo’+2’2’+2’2’+Bo’Bo’+2’2’+Bo’Bo’

A TCDD HT80000 (Velaro TR) at the railway terminal in Eskişehir

All trains are fitted with ETCS.[1] Siemens gained data on aerodynamics from Germany, China, Spain and Russia. A high roof from the middle portion of the end car was introduced, as it reduces sonic boom in tunnels, improves the driving friction and reduces exterior noise. Further aerodynamic improvements to the nose and spoiler means reduced CO₂ emissions of 14 g/passenger-km. In comparison, the average CO₂ emission of an aircraft with the same payload is 136 g/passenger-km.[1]

As the first set (HT80001) is a Velaro D which was built according to Deutsche Bahn specifications, it differs from the rest of the trains (Velaro TR) at some points. The first set (Velaro D) can reach a maximum speed of 320 km/h (199 mph) contrary to 300 km/h (186 mph) for the following sets (Velaro TR). Their electric systems are also different: While the Velaro D can run under four different voltage systems (15 kV, 16,7 Hz AC / 25 kV, 50 Hz AC & 1.5 kV DC/ 3 kV DC), the Velaro TR is a pure 25 kV, 50 Hz AC system vehicle. Finally, their interior and number of seats are also different.[11]

1st-class interior of a TCDD HT80000 EMU

The first set (Velaro D) has a total capacity of 460 places (333 seats in Economy class, 111 seats in First class, and a bistro with 16 seats).[12] The following sets (Velaro TR) have a different configuration: 45 seats in First class, 424 seats in Economy class, 2 seats for disabled passengers, a Business class with 3 compartments of 4 seats (12 seats in total), and a bistro with 36 seats, for a total capacity of 519 places.[6] First class seats have a personal media screen.[13]