DB Class VT 10.5

DB Class VT 10⁵

Number(s)	VT 10 501, VT 10 551
Quantity	2
Manufacturer	LHB (501) Wegmann (551)
Year(s) of manufacture	1953
Retired	1959, 1960
Axle arrangement	B'1'1'1'1'1'1'B' (501) B'2'2'2'2'2'2'2'B' (551)
Type	BPw 10ükll (501) WLAB B Pw WR 18ük (551)
Gauge	1,435 mm (4 ft 8 ¹⁄₂ in) standard gauge
Length over couplers	096,700 mm (317 ft 3 ¹⁄₈ in) (501) 108,900 mm (357 ft 3 ³⁄₈ in) (551)
Height	3,525 mm (11 ft 6 ³⁄₄ in)
Width	3,024 mm (9 ft 11 in)
Pivot pitch	12,200 mm (40 ft ³⁄₈ in)
Bogie wheelbase	2,200 mm (7 ft 2 ⁵⁄₈ in) (power bogies) 2,000 mm (6 ft 6 ³⁄₄ in) (carrying bogies)
Service weight	104.0 t (102.4 long tons; 114.6 short tons) (501) 122.0 t (120.1 long tons; 134.5 short tons) (551)
Axle load	13.0 t (12.8 long tons; 14.3 short tons)
Top speed	120 km/h (75 mph) (originally) 160 km/h (99 mph)
Installed power	4 × 120 kW (160 hp) (originally) 4 × 150 kW (200 hp)
Motor make/model	MAN D 1548 G
Motor type	diesel engine
Power transmission	Torque converter + gearbox
Seats	135 (501) 12+29 (551)

The VT 10.5 was a diesel multiple unit that was developed by the Deutsche Bundesbahn in the early 1950s. It was first displayed in public at the International Transport Exhibition in Munich in 1953.

Design and operation

Two train sets were built with significant differences in construction. The day train, "Senator" (VT 10 501), consisted of seven cars, including the front and rear engine unit, and was later extended by an 8th car. The cars were connected by single Jacobs axles. Only the first bogies of the power units were twin-axle bogies, both axles being powered. The "Senator" was on duty between Hamburg and Frankfurt/Main from May 1954 until November 1957.

The night train, "Komet" (VT 10 551), was different from the "Senator" though looking the same at first sight. Instead of single Jacobs axles connecting the cars, twin-axle Jacobs bogies were used. The "Komet" was delivered with 8 cars from the outset and had better driving characteristics than the "Senator", which was described as having some "freight-car like" behaviour.

The "Komet" was in service between Zurich and Hamburg from May 1954 until December 1960 and was operated by the DSG (Deutsche Schlafwagen Gesellschaft/German sleeping car company).

Technical data

The VT 10 501 was built by Linke-Hofmann-Busch in 1953 for the Deutsche Bundesbahn. It was designed as a seven-unit train, but was extended to eight cars after initial tests. Every pair of intermediate cars had a common Jacobs axle; only the power cars had twin-axled, powered bogies.

The VT 10 551 built in 1953 for the Deutsche Schlafwagen- und Speisewagengesellschaft by Wegmann in Kassel and taken over on 1 January 1955 by the Deutsche Bundesbahn. The trailer cars were linked by twin-axled Jacobs bogies; the power cars had twin-axled, powered bogies.

Each power car was equipped with two MAN diesel engines of Type D 1548 G, each developing 118 kW (158 hp). Later, the power was increased to 154 kW (207 hp) per engine. The original version had a top speed of 120 km/h (75 mph); the later version could attain 160 km/h (99 mph). To supply power to the train, two additional diesel engines were installed, each capable of 92 kW (123 hp). Power transmission was hydraulic with a mechanical four-way gearbox.

Gallery

Details of the VT 10 551i

External links

Site about the VT 10.5 "Komet" (night train)

Classes of German DMUs

BR number	601 602 605 608 610 611 612 612 alt 613 613 alt 614 618 624 627 628 629 633 634 636 640 641 642 643 644 645 646 648 650 660 670 672 675 690 691 692 699 771 772 795 796 797 798

Pre-1968 classes	VT 04.0 VT 04.1 VT 04.5 VT 06 VT 07.5 VT 08.5 VT 10.5 VT 11.5 VT 12.5 VT 23.5 VT 24 VT 25.5 VT 30 VT 32 VT 33 VT 36.5 VT 38 VT 45.5 VT 46.5 VT 50 VT 51 VT 60.5 VT 62 VT 63 VT 66 VT 69 VT 70 VT 72 VT 75 VT 78 VT 79 VT 86 VT 88 VT 89 VT 90.5 VT 92.5 VT 95 VT 97 VT 98

Old DRG numbers	VT 7 VT 10 VT 20 VT 133 VT 135 VT 137 SVT 137 VT 814 VT 815 SVT 877

DR in the GDR	171 172 173 175 181 183 184 185 186 187 188 VT 2.09 VT 4.12 VT 12.14 VT 18.16

Special trains	Flying Hamburger ICE TD Integral TEE

Diesel railbuses	Esslingen railbus MAN railbus Uerdingen railbus Wismar railbus RegioSprinter

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