What is the requirement for aircraft operations under a special flight permit?

The requirement for aircraft operations under a special flight permit is that a test must be performed before further flight. A special flight permit, often referred to as a ferry permit, is issued by aviation authorities to allow an aircraft that is not in compliance with standard airworthiness requirements to conduct specific flight operations. This is typically for a limited purpose, such as to move the aircraft to a location where repairs or modifications can be conducted.

Part of ensuring the aircraft’s safety for such operations involves conducting a test flight. This helps to verify that the aircraft is capable of operating safely despite any existing issues, which is critical when the aircraft isn't fully operational or has airworthiness concerns. The test flight assesses the aircraft's functionality, performance, and any potential risks, thereby aiming to ensure safety in the upcoming operations.

The other options do not align with the requirements of a special flight permit. For instance, the aircraft doesn’t have to be fully operational to receive a special flight permit, nor does it need to be completely disassembled, which would be impractical for the purpose of transportation or repairs. Furthermore, while special authorization is indeed required to operate under a special flight permit, simply stating that "no special authorization is necessary" contradicts the fundamental nature of aviation regulations designed