light engine
Noun
A locomotive running on its own, or with other powered locomotives, with no wagons or carriages attached.
- Examples
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More examples (1)
After a week's manœuvrability tests at Winwick, the locomotive was to undergo three weeks' trials, light engine and loaded, between Whitchurch and Tattenhall Junction.
On February 24, 99003 undertook its first solo main line test - as a light engine - on both routes. 99004 followed suit on March 2.
Word forms
light engines