Export Container Shipments (Sales Order) and Revenue Recognition

How are companies setting up the sales order process for Export Sales Orders (containers for example), ship confirming and revenue recognition?

We create an export order (different order type from domestic) and load a container at our plant and then ship the container to the port to be loaded onto a ship. As the container leaves our plant the order is ship confirmed and the inventory is relieved from our warehouse however the customer does not take ownership of the inventory until the ship leaves port.  The sales orders may contain multiple containers (sale order lines), and from the time the containers start leaving the plant until the ship has sailed may take 2-3 weeks.  In this situation we have inventory