0 past simple and past participle of crew --
1 If you crew a boat, or crew for someone on their boat, you help to sail it. --
Salyut 1, the first station in the program, became the world's first crewed space station.
Many space missions are more suited to telerobotic rather than crewed operation, due to lower cost and lower risk factors.
A yacht charter broker specializes in the sale of fully crewed luxury yachts or smaller bare-boat yachts, or both.
While staging is common launch vehicle practice, it introduces safety, risk and reliability concerns, particularly on crewed flights.
The various proposed crewed spacecraft were mostly spaceplanes.
These robotic systems also have a reduced cost compared with early crewed operations, and have less political risk.
The units are usually single, double or sometimes even triple crewed.
The first crewed mission is expected to take place after 2020.
