Playing photographer #27 - Skoda locomotive

ceramixer (67)in WORLD OF XPILAR • last year

The Todor Kableshkov Higher Transport School was established as a State Railway School by Royal Decree in 1922 and has a fully military organizational structure. Since 2000, the school has been demilitarized.

The Higher Transport School "Todor Kableshkov" is one of the oldest higher technical schools in Bulgaria, which trains personnel for the transport sector and all related spheres of the country's social and economic life.

On the territory of the school complex there is a large area where several exhibits of old locomotives are located. Their type is authentic and preserved. Even the smell of engine oil can be felt, which adds an extra atmosphere.

The appearance of the product in the "art deco" style is the brainchild of the famous Czechoslovak designer in the 60s of the last century - Prof. Eng. Otakar Diblik ( Otakar Diblnk) . The characteristic rounded look with two huge panoramic windows at the front is achieved thanks to a new material used for the production of the basket. Polyester laminate (or as it was known at the time - glass mat) is a material that is adored for work by all designers in the world, because it allows to achieve the desired shapes with simple means, without using expensive equipment, such as metal presses and a bunch more complex metalworking machines.

By the way, a little-known fact is that initially the prototype was actually the infamous six-axle locomotive with a similar body 47E, designated in Czechoslovakia as S699. This locomotive at that time was produced as a single copy at the insistence of the Soviet authorities. However, after their refusal to order it for serial production, this single prototype was transferred to the Prague Testing Institute (1965) for further experimental work on the creation of a six-axle electric locomotive. Then his gearbox had a changed translation ratio from 1:3.2 to 1:2.8 and even in some cases he developed a speed of 200 km/h on the test site.
According to the historical data of the Railway Institute in Prague, locomotive S699 . 01 has passed road tests in our country in the section Gorna Oryahovitsa-Rusein 1965 after which BDZ finally stopped and chose for the future series 42 to be a similar but four-axle locomotive.

The most important technical characteristics of locomotives of the BDZ-42 series are :
Type of current, frequency and magnitude of the voltage - AC-50Нz -25kV .
Type of service purpose for freight and passenger trains:
Coupling table - 84,500 kg.
Diam. on the wheels and front. number of reducers - 1250 mm.
Design speed - 140 km/h.
Maximum speed - 110 km/h.
Minimum entry radius in curves - 125 m.
Length with buffers - 16,500 mm.
Maximum width - 3060 mm.
Maximum height from rail head - 4,650 mm.
Distance between the central bolts of the bogies 7,800 mm.
Distance between the track axles in the bogies - 2,800 mm.
Normative service life 25 years.
Hourly power / durable - 3140 / 3020 kVV.
Hourly speed / sustained - 50.4 / 51.1 km /hr.
Hourly pulling force / permanent - 22.6 / 21.8 tf.
Starting pulling force by current / by traction - 32.0 / 32.0 tf.
Power at max. speed - 1 850 kVV .
Axle load - 21,250 kg.
Dost. of full braking force in normal load / road - 20-28s/3-5 s.
Brake mass in load mode. / travel - 53,000 kg.
Brake line isolator. Mash. in "P" mode from max. speed - 700 m.
Traction motors / suspension 4 pieces / support-frame.
Denomination. voltage / conc. current / efficiency -750 V / 1125 A / 0.936 .
Denomination. and maximum. stable of the engines 890 / 1830 u/min.
Cabin dimensions 276 x 190 x 220 see
Noise level in cabins - 75 dB .