Air cargo mode 1 Scheduled airline 2 Chartered carrier: 3. Air express
1 Scheduled airline means that a plane has a specific time of departure, a fixed route, departure station, stop and destination station. It usually rely on passenger and cargo aircraft to carry cargo in the belly of a passenger flight;
2 Chartered aircraft: chartered aircraft means the chartering of the whole plane. It means that the airline or the charter agency company rents the whole plane to the charterer in accordance with the terms and freight rates agreed in advance by the two parties in the contract. The purpose is to deliver the goods from one air harbor to a specified destination; Etc.