Did you by any chance mean unscrewed?
- un- + crewed (Wiktionary)
“Robotic probes and so-called uncrewed cosmic laboratories have done their work during the shuttle era, delivering a big scientific bang for the buck, compared to experiments done by human space voyagers.”
“Say you send first a few (3, 4?) of them uncrewed to the surface of the Moon.”
“When the crew leaves the Moon you have the potential of sending the uncrewed ascent vehicles for a rescue mission.”
“Err, not that kind of dragon--an uncrewed 'Dragon' capsule designed by the company SpaceX is set to launch on February 7th and rendezvous with the station a few days later.”
“The uncrewed test flight last two minutes, and go 45 kilometers 28 miles in altitude.”
“Robotic and uncrewed submersibles could operate more effectively by mimicking the way some fish probe their surroundings with electric fields, say researchers.”
“Link: Uncrewed aircraft swarm together indoors - tech - 27 September 2006 - New Scientist Tech. A flock of indoor uncrewed aerial vehicles (UAVs) is helping engineers develop smart swarming strategies for larger autonomous surveillance aircraft.”
“The 3-metre-long uncrewed plane “AIVA” relies entirely upon a Bluetooth wireless network to relay messages back and forth between critical systems - a technique dubbed “fly-by-wireless”.”
“Because there were a number of uncrewed Shenzhou missions before they sent a man up.”
“The plan is to get some more uncrewed lunar surveyors and sample-return landers working by 2017, while activities continue in earth orbit.”
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