Answer | Crossword Clue |
---|---|
GEAR | Power-train part |
AXLE | Power train connection |
AXLE | Power train target |
THIRDRAIL | Power source for a subway train |
helper | extra locomotive attached to a train at the front, middle, or rear, esp. to provide extra power for climbing a steep grade |
helpers | extra locomotive attached to a train at the front, middle, or rear, esp. to provide extra power for climbing a steep grade |