com.airplaneian.contrail.temp.flight

An assertion that a particular flight existed, rather than a personal log entry about the author. Only 'createdAt' is required. Every other field is optional, and absent means unknown or not applicable rather than empty or zero. The exception is 'relationship', where absent means no claim is being made. Records of the same flight written by different people are expected, so write the identifying fields consistently. Any kind of flying is in scope, and origin may equal destination.