SBB Ae 4/7

Specifications
Specifications
Configuration:;
• AAR	2-D-1
• UIC	2′Do1′
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Length	16,760 mm (55 ft 0 in) over buffers
Width	2,950 mm (9 ft 8 in)
Height	3,800 mm (12 ft 6 in)
Loco weight	118 to 123 tonnes (116 to 121 long tons; 130 to 136 short tons)
Electric system/s	15 kV 16+2⁄3 Hz AC Catenary
Current pickup(s)	Pantograph
Transmission	Buchli drive

Type and origin
Type and origin
Power type	Electric
Builder	Swiss Locomotive and Machine Works (SLM), Brown, Boveri & Cie. (BBC), Maschinenfabrik Oerlikon (MFO), Société Anonyme des Ateliers de Sécheron (SAAS)
Build date	1927–1934
Total produced	127

SBB Ae 4/7
SBB Ae 4/7
	SBB Ae 4/7
Power type
Type and origin
Power type	Electric
Builder	Swiss Locomotive and Machine Works (SLM), Brown, Boveri & Cie. (BBC), Maschinenfabrik Oerlikon (MFO), Société Anonyme des Ateliers de Sécheron (SAAS)
Build date	1927–1934
Total produced	127
Configuration:;
Specifications
Configuration:;
• AAR	2-D-1
• UIC	2′Do1′
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Length	16,760 mm (55 ft 0 in) over buffers
Width	2,950 mm (9 ft 8 in)
Height	3,800 mm (12 ft 6 in)
Loco weight	118 to 123 tonnes (116 to 121 long tons; 130 to 136 short tons)
Electric system/s	15 kV 16+2⁄3 Hz AC Catenary
Current pickup(s)	Pantograph
Transmission	Buchli drive
Maximum speed
Performance figures
Maximum speed	100 km/h (62 mph)
Power output	2,300 kW (3,080 hp)
Tractive effort	Continuous: 127 kN (29,000 lbf) at 65 km/h (40 mph)
Operators
Career
Operators	SBB-CFF-FFS
Numbers	10901–11027
Withdrawn	1983–1996
Restored	1998 (2 for Rail4Chem)
Disposition	22 extant, remainder scrapped

The Ae 4/7 was a universal locomotive of the Swiss Federal Railways, employing the so-called Buchli drive.

Because of this drive construction, invented by Jakob Buchli, it was one of the longest-lasting Swiss locomotives. It was in regular use for 70 years, from the 1920s into the 1990s, hauling freight and passenger trains all over Switzerland.