Konstal 105Na
| Konstal 105Na | |
|---|---|
Konstal 105Na in Zabrze
|
|
| Manufacturer |
 Konstal
|
| Constructed | 1979-1992 |
| Entered service | 1979 |
| Number built | 2134 |
| Capacity | 20 seats 105 standing |
| Specifications | |
| Train length | 13,500 mm (44 ft 3 in) |
| Width | 2,400 mm (7 ft 10 in) |
| Height | 3,060 mm (10 ft 0 in) |
| Floor height | 890 mm (2 ft 11 in) |
| Doors | 4 |
| Maximum speed | 72 km/h |
| Weight | 17000 kg |
| Power output | 4 x 41.5 kW |
| Bogies | 2 |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in), 1,000 mm (3 ft 3 3⁄8 in) |
The Konstal 105Na are a class of Polish trams manufactured from 1979 to 1992 in workshops Konstal Chorzow, Poland. The narrow-gauge version is designed as 805Na. As of 2016 they are still the most common trams in Poland.
105Na is unidirectional motor tramcar, equipped with four doors.
It represents the development of the earlier tram Konstal 105N, the main changes being the location of the components of the electrical equipment which were transferred from under the steps to the back wall of the driver's cabin, the introduction of a separate cabin for the driver and the removal of the small windows under the front and side windscreens. The most important change was the introduction of motor grouping, which reduced the energy consumption by 12%. During initial acceleration, the four motors are connected in series, whilst at higher speeds, two groups of motors are connected in parallel.
While in service, the 105Na vehicles were the subject of various modifications and upgrades (including changes in the electrical system, new front plastic, change of the door opening mechanism, and even re-design, for Poznań, to the bidirectional Konstal 105NaDK). Almost all 105N cars in Poland have over time been modernised to the 105Na standard.
The Konstal 105Na and 805Na trams provided the basis for the production of a large number of prototypes and variants:
The number of standard-gauge version 105Na vehicles produced is 1443 while the number narrow-gauge version, the 805Na, is 691.
These trams are used in all Polish cities which operate a tram system and they are the largest group in the stock.
Cockpit of 105Na
Interior
High floor is one of the main drawbacks of 105Na
105NaDK - a bidirectional variant in Poznań
Konstal 111N with doors on both sides
Konstal 105Nz
Konstal 105N2k2000 - one of the last produced
A modernised 105Na in Wrocław
A modernised 105Na in Bytom
A modernised 105Na in Bytom - rear view
A modernised 105Na in Szczecin
A modernised 105Na in Wrocław
A modernised 105Na in Gdańsk
105Na undergoing modernisation
105Na undergoing modernisation
A Konstal 105Na in old...
...and new Warsaw livery
105Na in Wrocław in 1989
105Na in Wrocław, 2015
105Na in Poznań, 2015
105Na in Warsaw, 2015
...
Wikipedia