Assertion: locomotive's cylinder | /r/HasProperty | horizontal
Facets:
Source sentences:
text: Rocket was followed by a number of other engines of similar 0-2-2 layout with rear-mounted cylinders built for the L&MR before it opened on 15 September 1830, culminating in the Northumbrian (1830), by which time the cylinders were horizontal.
text: It is unclear whether the single cylinder was vertical or horizontal, and whether the boiler had a single straight flue or a return flue.