What is the term used to define the owner of an aircraft?

The term that defines the owner of an aircraft is "lessor." A lessor is typically an individual or entity that leases an aircraft to another party. In the context of aircraft leasing, this party holds ownership of the aircraft and grants the lessee (the party leasing the aircraft) the right to use it under specified terms and conditions.

Understanding this relationship is crucial in the aviation industry, particularly in operations involving leased aircraft. The lessor is responsible for various aspects of ownership, including maintenance obligations, compliance with regulations, and overall asset management.

In contrast, the operator refers to the organization or individual responsible for the actual operation of the aircraft, which can be distinct from ownership. The lessee is the party that rents the aircraft under a lease agreement, while the pilot is the individual who flies the aircraft. Thus, recognizing the role of the lessor is vital for comprehending the dynamics of aircraft ownership and leasing arrangements.