optionally piloted vehicle (English, noun)
expansion: optionally piloted vehicle (plural optionally piloted vehicles)
Senses:
topics: aeronautics
aerospace
aviation
business
engineering
government
military
natural-sciences
physical-sciences
politics
war
glosses: An aircraft that may be manned or unmanned, able to function in either mode without modification.
tags: US
Forms:
form: optionally piloted vehicles
tags: plural