PURPOSE: To perform lower-cost and more rapid air transportation with a large quantity, to provide advantages for enviromnent protection, and to reduce an amount of consumed fuel by using an automatic inflight refueling airplane at a distant of 1000KM or more, in a method to perform air-transportation of large quantities of resources.

CONSTITUTION: In a method to effect air-transportation of large quantities of resources, in addition to a flying object 1 to transport resources, an automatic inflight refueling airplane 2 being a flying object to load only fuel is caused to wait at a distance of 1000KM or more and fuel is fed to the flying object 1 in air. This method performs lower-cost and more rapid air-transportation of large quantities of resources. By effecting the operation, an amount of consumed fuel is sharply reduced, the weight of the flying object 1 is also reduced, and air transportation of large quantities of resources can take place.