Air freight is a method of transporting goods by air. It works by shipping cargo on planes, which are often operated by commercial airlines or dedicated cargo airlines. The goods are packaged and transported in cargo planes, which are designed to handle the specific requirements of air cargo.

Full charter and part charter are two types of air freight services offered by airlines.

Full charter involves the entire aircraft being chartered by a single customer to transport their goods. This is often used for urgent, high-value or large shipments that require dedicated transportation.

Part charter, also known as split charter or shared charter, involves sharing the aircraft with other customers. This is a cost-effective option for smaller shipments that do not require the entire aircraft, but still need to be transported quickly.

In summary, the main difference between full charter and part charter is the level of exclusivity and cost. Full charter provides exclusive use of the aircraft and is typically more expensive, while part charter shares the aircraft with other customers and is more cost-effective.

The transit time for air freight can vary depending on factors such as the distance, route, carrier, customs clearance, and any unexpected delays. Generally, air freight is faster than sea freight and can take anywhere from a few hours to several days, depending on the destination.

The advantages of air freight include faster transit times, greater security, and the ability to transport high-value or time-sensitive goods. The disadvantages include higher costs, weight and size restrictions, and limited availability to certain destinations.

Shipping rates for air freight are calculated based on several factors, including the weight and volume of the cargo, the origin and destination, the carrier, and any additional services required such as insurance or special handling. Rates may also vary based on market conditions, fuel prices, and other external factors.

1. The required documents for air freight shipments can vary depending on the origin and destination countries and the type of goods being transported. Common documents include a commercial invoice, air waybill, packing list, and any necessary permits or certificates for regulated goods. It's important to consult with a freight forwarder or customs broker to ensure all required documents are in order.