What is Plane Cargo ?
Air cargo is commonly known as freight. There are many businesses which collect freight and deliver it to the customer such as Nightfreight or UPS. Aircraft were first put to use carrying mail as cargo in 1911, but eventually manufacturers started designing planes just for freight. There are many commercial planes suitable for carrying cargo such as the Boeing 747, which was purpose built to be easily converted to a cargo aircraft. Such very large aircraft also employee quick loading containers known as unit load devices much like containerized cargo ships. The military of most nations own and utilize large numbers of cargo planes such as the C-17 Globemaster III, for airlift logistics needs of such operations.