Which flight documents must be carried on an aircraft?

The correct answer indicates that only specific flight documents must be carried on an aircraft, and the selection of documents aligns with mandatory regulations for aircraft operation. Typically, the required documents include the aircraft registration, airworthiness certificate, and operating limitations, among others, which are essential to ensure that the aircraft is legally permitted for flight and that it meets safety standards.

By carrying just these necessary documents, the pilot can fulfill regulatory obligations without the burden of additional materials that are not mandated for flight. This helps focus attention on the key documentation essential for safe and compliant aircraft operation.

The other choices suggest that either more or different documents are necessary. However, regulations usually specify a streamlined list of essential documents that must be aboard, which is reflected in the correct answer. It's vital for pilots and operators to know and comply with the specific requirements, recognizing which documents are legally required to prevent any potential regulatory issues during inspections or in the event of an incident.