A1A-A1A
English
Noun
A1A-A1A (countable and uncountable, plural A1A-A1As)
- (rail transport, uncountable) A wheel arrangement for diesel and electric locomotives with two three-axle bogies / trucks, the two outer axles of each bogie are powered and the centre axle is unpowered.
- (countable) A locomotive with this wheel arrangement.
Usage notes
A bogie of this type is an A1A bogie:
- 2021 June 30, David Clough, “Brush: a UK rail icon”, in RAIL, number 934, page 55:
- Overall weight was 87 tons and the locomotive was mounted on two A1A bogies.