Assertion: castor oil | /r/HasProperty | the gnome engine
Facets:
value: for rotary engines
type: OTHER
Source sentences:
text: Castor oil was the preferred lubricant for rotary engines, such as the Gnome engine after that engine's widespread adoption for aviation in Europe in 1909.
text: Castor oil was the preferred lubricant for rotary engines, such as the Gnome engine after that engine's widespread adoption for aviation in Europe in 1909.