The other tunnel (W) serves as a passage for the steampipe, which leads from the boilers to the engines.
Do you remember carrying me from the number seven culvert clean back to the station after the steampipe broke?
Only her speed and manoeuvring capacity had suffered considerably owing to a steampipe having been hit.
The steampipe was rusty, and she looked as if she had been abandoned.
At first I could not hear very well, the steampipe made such a noise.