Global InformationSiemens SD660 information
| Siemens SD660 (Types 2 and 3) | |
|---|---|
 A train of SD660s on the Steel Bridge in Portland, Oregon | |
 Interior of an SD660 | |
| Manufacturer | Siemens |
| Built at | Sacramento, California |
| Constructed | 1996–2005 |
| Entered service | 1997 |
| Number built | 79 |
| Number in service | 79 |
| Successor | Siemens S70/S700 |
| Fleet numbers |
|
| Operators | TriMet |
| Specifications | |
| Car length | 91.93 ft (28.02 m) over couplers |
| Width | 8.71 ft (2.65 m) |
| Height | 13 ft (4.0 m) |
| Floor height |
|
| Low-floor | 70% |
| Entry | Level |
| Doors | 8 per car (4 per side) |
| Articulated sections | 3 |
| Wheelbase | 5.90 ft (1,800 mm) |
| Maximum speed | 55 mph (89 km/h) |
| Weight | 108,000 lb (49 t) |
| Traction system | Siemens IGBT–VVVF[1] |
| Traction motors | 4 × Siemens 175 kW (235 hp) 3-phase AC induction motor |
| Power output | 700 kW (940 hp) |
| Acceleration | 3 mph/s (1.3 m/s2) |
| Deceleration |
|
| Electric system(s) | Overhead line, 750 V DC |
| Current collector(s) | Pantograph |
| UIC classification | Bo′+2′+Bo′ |
| AAR wheel arrangement | B-2-B |
| Minimum turning radius |
|
| Coupling system | Scharfenberg |
| Multiple working |
|
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
The Siemens SD660, originally known as the Siemens SD600,[4] is a double-articulated, 70%-low-floor light rail vehicle (LRV) manufactured by Siemens Transportation Systems. It was the first low-floor light rail vehicle to be used in the United States.[5][6] It first entered service in 1997 with its only operator, TriMet, on the MAX light rail system in Portland, Oregon, United States.
- ^ "SD660 Light Rail Vehicle Technical Information" (PDF). Siemens Transportation Systems. May 15, 2005. Archived from the original (PDF) on August 9, 2007.
- ^ Cite error: The named reference
LRMT-1997octwas invoked but never defined (see the help page). - ^ Cite error: The named reference
smoothwas invoked but never defined (see the help page). - ^ "Systems News". Tramways & Urban Transit. UK: Ian Allan Publishing/Light Rail Transit Association. October 1998. p. 397. ISSN 1460-8324.
- ^ Vantuono, William C. (July 1993). "Tri-Met goes low-floor: Portland's Tri-Met has broken new ground with a procurement of low-floor light rail vehicles. The cars will be North America's first low-floor LRVs". Railway Age. pp. 49–51. ISSN 0033-8826.
- ^ "LA And Portland Get New-Design LRVs". International Railway Journal. October 1993. pp. 26–27. ISSN 0744-5326.