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4 photos from Wikimedia Commons · credits & licences
- 1. Ad-free MAX train of two Type 2 cars on Steel Bridge in 2015: Steve Morgan· CC BY-SA 3.0
- 2. MAX train crossing Steel Bridge in 2009 - street view of SD660 LRVs: Steve Morgan· CC BY-SA 3.0
- 3. MAX train crossing Steel Bridge in 2024 - street view of SD660 LRVs: Steve Morgan· CC BY-SA 4.0
- 4. Phantom + SD660 (5006047629): Atomic Taco from Seattle, WA, USA· CC BY-SA 2.0
what is it?
The Siemens SD660, originally known as the Siemens SD600, 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. It first entered service in 1997 with its only operator, TriMet, on the MAX light rail system in Portland, Oregon, United States.
who runs it
base stats
Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.
fun facts
- First built 29 years ago, in 1997.
- 700 kW is about 8 family cars (~85 kW each) flat out.
- Weighs about as much as 8 African elephants (~6 t each).
- 28 m long: about 6 cars parked nose to tail.
tram / light rail: Street-running or light-rail vehicles that share or skirt the road.
spec sheet
- built
- 1997
- in service from
- 1997
- number built
- 79
- kind
- tram / light rail
- traction
- electric
- origin
- 🇺🇸 United States
- builders
- Siemens Mobility
- operators
- TriMet
- top speed
- 88 km/h
- power
- 700 kW
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- Bo′+2′+Bo′
- length
- 28 m
- weight
- 49 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q92746829, Wikipedia: Siemens SD660 (CC BY-SA 4.0).Updated 2026-10-25.