Assertion: crewed aircraft | /r/HasProperty | flown by an onboard pilot
Facets:
Source sentences:
text: Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers.
text: Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers.