Star Trek: The Next Generation
Operating rules require that at least eleven shuttle vehicles be maintained at operational status at all times. Cruise Mode operating rules require one standard shuttlecraft and one shuttlepod to be at urgent standby at all times, available for launch at five minutes' notice. Four additional shuttlecraft are always available on immediate standby (thirty minutes to launch), and an additional six vehicles are maintained for launch with twelve hours' notice. Red Alert Mode operating rules require two additional shuttles to be brought to urgent standby, and all nine remaining operational vehicles to be maintained at immediate standby.