TU7 diesel locomotive

TU7 - TU7A

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Type and origin Power type Diesel Builder Kambarka Engineering Works Build date 1971 - today

Specifications UIC class B'B' Gauge 750 mm (2 ft 5 1⁄2 in) to 1,435 mm (4 ft 8 1⁄2 in) Wheel diameter 600 mm Minimum curve 40 m Length 9,400 mm Width 2,450 mm Height 3,550 mm Axle load 5 tons Loco weight 24 tons Fuel type Diesel Prime mover Bernaul 1D12-400, 12-cylinder, V-shaped Transmission hydraulic

Performance figures Maximum speed 50 km/h Power output 400 hp

Career Class RUS - ТУ7 / ТУ7А Belarus - ТУ7 / ТУ7А Bulgaria - TU7E (series 81 БДЖ) Slovakia - TU46 Vietnam - D4H / D4Hr Ukraine - ТУ7 / ТУ7А Estonia - ТУ7 / ТУ7А Latvia - ТУ7 / ТУ7А Lithuania - ТУ7 / ТУ7А Cuba - TU7E Guinea - TU7E

TU7 (ТУ7) - Soviet, later Russian diesel locomotive for gauge 750 mm (2 ft 5 ¹⁄₂ in) – 1,067 mm (3 ft 6 in).

History

The TU7 (ТУ7) was developed in 1971-1972 at the Kambarka Engineering Works to replace the aging locomotive classes TU4 (ТУ4) and TU2 (ТУ2). There were 3,361 locomotives constructed, of which several hundred were exported to the countries of the socialist community and sots.orientatsii. The TU7 - TU7A (ТУ7 - ТУ7А) was designed to be used on any gauge from 750 mm (2 ft 5 ¹⁄₂ in) to 1,435 mm (4 ft 8 ¹⁄₂ in). In 1986 the locomotive design was updated and designated type TU7A (ТУ7А).

D4H

The D4H 1,000 mm (3 ft 3 ³⁄₈ in) and 9 locomotives D4Hr for standard gauge 1,435 mm (4 ft 8 ¹⁄₂ in), also known as the TU7 - TU7A (ТУ7 - ТУ7А) diesel locomotive, is a series of diesel locomotives currently used on the Vietnamese railway network. With 77 locomotives D4H 1,000 mm (3 ft 3 ³⁄₈ in) in service throughout the country as of 2005, it is the most common type of locomotive in use in Vietnam. The series was originally procured from the Soviet Union after the Vietnam War.

Additional specifications

• Distance between bogies - 4,700 mm
• Base of bogies - 1,400 mm
• Operating speed - 500 to 1,560 r/min

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  D4H-528, Da Lat–Thap Cham Railway
• Karintorf.jpg

  TU7A-3042, Kirov Oblast
• TU7A-3042.jpg

  TU7A-3042, Kirov Oblast

See also

• Narrow gauge railways
• Kambarka Engineering Works

External links

• TU7 diesel locomotive (Russian language)
• TU7E in ZSSK (Slovensko) (English language)
• TU7E diesel locomotives in Cuba (English language)
• TU7E diesel locomotives in Vietnam (English language)