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#2702

SBB Am 4/6 1101

🇨🇭 Switzerland ·built by Swiss Locomotive and Machine Works· from 1941· class of 1 Swiss experimental gas-turbine-electric locomotive

SBB Am 4/6 1101, photo 1 of 1
1/1 Unknown author Unknown author· Public domain

what is it?

Am 4/6 1101 was the world's first gas turbine–electric locomotive. The locomotive was ordered by the Swiss Federal Railways (SBB) from the Swiss Locomotive and Machine Works (SLM) and Brown, Boveri & Cie (BBC) in 1939. The locomotive was delivered in 1941 and was in use on railroads in Switzerland, France and Germany until 1954.

who runs it

base stats

  • speed 110 km/htop speed
  • power 1.6 MWpower output
  • weight 92 tin working order
  • built 1made in total

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 85 years ago, in 1941.
  • 1.6 MW is about 19 family cars (~85 kW each) flat out.
  • Weighs about as much as 15 African elephants (~6 t each).
  • 16.3 m long: about 4 cars parked nose to tail.
  • Served for 20 years (1938–1958).

diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).

spec sheet

built
1941
in service from
1938
retired
1958
status
retired
number built
1
kind
Gas turbine–electric
traction
gas turbine
origin
🇨🇭 Switzerland
builders
Swiss Locomotive and Machine Works, Brown, Boveri & Cie
operators
Swiss Federal Railways
top speed
110 km/h
power
1.6 MW
gauge
1,435 mm standard gauge
wheel arrangement
1′Do1′
length
16.3 m
weight
92 t

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q2205121, Wikipedia: SBB Am 4/6 1101 (CC BY-SA 4.0).Updated 2026-10-25.

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