TU7 diesel locomotive

Specifications
Specifications
Configuration:;
• UIC	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 (23.62 in)
Minimum curve	40 m (131.23 ft)
Length	9,400 mm (30 ft 10+1⁄8 in)
Width	2,450 mm (8 ft 1⁄2 in)
Height	3,550 mm (11 ft 7+3⁄4 in)
Axle load	5 t (4.9 long tons; 5.5 short tons) (?)
Loco weight	24 t (24 long tons; 26 short tons)
Fuel type	Diesel
Prime mover	Bernaul 1D12-400
Engine type	V12 diesel
Cylinders	12
Transmission	hydraulic

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

TU7 - TU7A
TU7 - TU7A
Power type
Type and origin
Power type	Diesel
Builder	Kambarka Engineering Works
Build date	1971 - today
Configuration:;
Specifications
Configuration:;
• UIC	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 (23.62 in)
Minimum curve	40 m (131.23 ft)
Length	9,400 mm (30 ft 10+1⁄8 in)
Width	2,450 mm (8 ft 1⁄2 in)
Height	3,550 mm (11 ft 7+3⁄4 in)
Axle load	5 t (4.9 long tons; 5.5 short tons) (?)
Loco weight	24 t (24 long tons; 26 short tons)
Fuel type	Diesel
Prime mover	Bernaul 1D12-400
Engine type	V12 diesel
Cylinders	12
Transmission	hydraulic
Maximum speed
Performance figures
Maximum speed	50 km/h (31 mph)
Power output	400 hp
Class
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 affiliated countries. 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,^[1] is a series of diesel locomotives currently used on the Vietnamese railway network. With 77 1,000 mm (3 ft 3+3⁄8 in) D4H locomotives in service throughout the country as of 2005, it is the most common locomotive class used in Vietnam.^[1] The series was originally procured from the Soviet Union after the Vietnam War.

Additional specifications

Distance between bogies - 4,700 mm (185.04 in)
Bogie wheelbase - 1,400 mm (55.12 in)
Engine speed - 500 to 1,560 r/min

Gallery

D4H-528, Da Lat–Thap Cham Railway
TU7A-3042, Kirov Oblast
TU7A-3042, Kirov Oblast
TU7-1698 returns to its train at Ponsticill (Brecon Mountain Railway) station after re-fuelling.