BBC RhB Gem 4/4

Built by SLM, SWS, BBC, MFO

Top speed

65 km/h

40 mph

Power output

780 kW

1,046 hp

Weight

50 t

110,231 lb

Length

13.89 m

45 ft 7 in

Track gauge

1,000 mm

Metre gauge

Years built

1968

2 units

Overview of the BBC RhB Gem 4/4

Discover the RhB Gem 4/4, a versatile hybrid locomotive designed for the Rhaetian Railway in Switzerland. This unique engine combines efficiency with power, making it a staple on the 1000 mm gauge network.

Built in 1968 by a consortium of SLM, SWS, BBC, and MFO, the RhB Gem 4/4 boasts a robust Bo'Bo' wheel arrangement. Its compact design measures 13.89 meters in length, 2.7 meters in width, and 3.82 meters in height, with a total weight of 50 tons.

Operating on 1 kV DC electric systems, this hybrid locomotive delivers an impressive power output of 780 kW and a tractive effort of 80 kN. With a top speed of 65 km/h, the RhB Gem 4/4 is well-equipped for the demanding routes of the Rhaetian Railway.

Explore the capabilities of this reliable and efficient locomotive, a testament to Swiss engineering and railway innovation.

BBC RhB Gem 4/4 technical specifications

	Value	Imperial / US
Built by	SLM, SWS, BBC, MFO · 19682 units
Top speed	65 km/h40 mph	40 mph
Power output	780 kW1,046 hp	1,046 hp
Tractive effort	80 kN17,985 lbf	17,985 lbf
Electric systems	1 kV DC
Track gauge	1,000 mmMetre gauge3 ft 3⅜ in	3 ft 3⅜ in
UIC axle arrangement	Bo'Bo'
Length	13.89 m45 ft 7 in	45 ft 7 in
Width	2.7 m8 ft 10 in	8 ft 10 in
Height	3.82 m12 ft 6 in	12 ft 6 in
Weight	50 t110,231 lb	110,231 lb