Assertion: aircraft engine's efficiency | /r/CapableOf | plummet with speed
Facets:
Source sentences:
text: Although efficiency plummets with speed, greater distances are covered.
text: Although efficiency plummets with speed, greater distances are covered.
text: Although efficiency plummets with speed, greater distances are covered, it turns out that efficiency per unit distance (per km or mile) is roughly independent of speed for Jet engines as a group.