Assertion: wind turbine | /r/CapableOf | use system
Facets:
value: by geometric design
type: MANNER
value: generally
type: MANNER
value: by flyweights
type: OTHER
Source sentences:
text: Small wind turbines (under 50 kW) with variable-pitching generally use systems operated by centrifugal force, either by flyweights or geometric design, and employ no electric or hydraulic controls.