what is it?
AA was a designator used for several different diesel locomotive types custom built by General Motors Corporation EMC/GM with passenger or baggage space in the same body. This locomotive is listed as class AA-6 by R. Craig, and the designation is logical as the locomotive is described as "half an E6" in the Second Diesel Spotter's Guide. One such was a single locomotive built for the Missouri Pacific Railroad, delivered in August 1940, numbered #7100.
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 86 years ago, in 1940.
- Top speed is 1.2× a car on the Dutch motorway (130 km/h).
- 746 kW is about 9 family cars (~85 kW each) flat out.
- Weighs about as much as 19 African elephants (~6 t each).
- Served for 22 years (1940–1962).
diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).
spec sheet
- built
- 1940
- in service from
- 1940
- retired
- 1962
- status
- retired
- number built
- 1
- kind
- Diesel-electric
- traction
- diesel
- origin
- 🇺🇸 United States
- builders
- Electro-Motive Diesel
- operators
- Missouri Pacific Railroad
- top speed
- 158 km/h
- power
- 746 kW
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- A1A-3
- weight
- 112 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q5323371, Wikipedia: EMC AA (CC BY-SA 4.0).Updated 2026-10-25.