Which factors contribute to a go/no-go decision for a flight?

A go/no-go decision for a flight primarily hinges on operational and safety-related factors, making aircraft readiness and weather conditions critical elements in this determination. Aircraft readiness involves checking the aircraft's mechanical and technical status—ensuring it is safe and equipped for flight. Weather conditions are equally vital, as adverse weather can significantly impact flight safety, including visibility, wind conditions, and storm occurrences, all of which must be evaluated prior to the flight.

In essence, these two factors are fundamental because they directly relate to the safety and effectiveness of the mission. Other options inherently lack the necessary focus on safety and operational integrity; they show varying degrees of importance but do not influence the fundamental readiness of an aircraft to operate safely.