(of an aircraft) capable of being flown safely.
- ‘Most of the components would be assembled before shipment to the launch site in flightworthy condition.’
- ‘But leave the black helicopters grounded for a moment: the conspiracy theories may not be flightworthy.’
- ‘Has anyone seen the Cessna; did they finally get it fixed and flightworthy?’
- ‘Gradually the other ten were made flightworthy, although the last one assembled was quite a collection of mismatched parts.’