State of Charge Rules That Decide Air against Sea Freight
Air cargo limits lithium-ion cells to 30% SOC under IATA PI 965, whereas sea freight allows higher SOC to prevent voltage collapse during transit.
Air Freight Cargo
Meaning
Air freight cargo is the physical mass transported by commercial aviation under specific transport contracts that govern liability limits and transit timeframes. This mode of transport moves high value or time sensitive commodities between global hubs. The boundary where this process stops applying is the moment goods pass from airline custody to ground handlers at the destination terminal.
Strict dimensional and weight thresholds dictate whether a shipment qualifies for main deck allocation or lower deck belly space.
Transit Protocol
Shippers book air freight cargo through forwarders who secure capacity on scheduled passenger or freighter aircraft. Operators require specific documentation including the master airway bill and the commercial invoice before loading begins. Security screening protocols mandate that every pallet undergoes X-ray examination or explosive trace detection prior to acceptance.
Temperature sensitive pharmaceuticals and perishable goods move under specialized thermal blankets and active cooling containers to maintain cold chain integrity during flight.
Pricing Mechanism
Airlines price air freight cargo based on the chargeable weight which compares gross mass against volumetric dimensions using a standard conversion factor. Carriers levy additional fees for dangerous goods handling and outsized pieces that demand specialized loading equipment. Market rates fluctuate constantly according to belly capacity availability and seasonal demand shifts on specific trade lanes.
Forwarders consolidate multiple small consignments into single master loads to negotiate lower per kilogram rates from airlines.
Capacity Allocation
Network planners allocate air freight cargo space between passenger aircraft bellies and dedicated freighters to maximize yield per available seat kilometer. Widebody aircraft provide the primary volume for long haul trade routes while narrowbody planes handle regional feeder networks. Cargo operators adjust schedules dynamically in response to industrial production cycles and ocean freight disruptions.
Regulatory limits on crew duty hours and aircraft turnaround times constrain how quickly airlines can reposition aircraft to meet sudden surges in shipping demand.