Two types of vehicles may carry cargoes: ConVecs and Cargo Trucks.
ConVecs may carry only structure kits, which are built and stored at the Structure Factory. To load a structure kit, drive a ConVec onto the Structure Factory's dock. Once the ConVec has arrived at the dock, select the Structure Factory and click the STORAGE button on the Status display (in the Command Pane). The Storage display shows the six storage bays at the Structure Factory. Click any occupied bay to load the ConVec.
The most common use you will have for your Cargo Trucks is moving Common or Rare Ore from mines to smelters. Drive an empty Cargo Truck onto the loading platform at a mine to load it with ore. Once the Cargo Truck is loaded with ore, drive it to the loading dock of an appropriate smelter. If space is available in the colony's metals storage facilities, the Cargo Truck will automatically unload its ore and it will be processed into metals.
You may load Common or Rare Metals in a Cargo Truck, either for an evacuation or to transfer to another player (in multiplayer games). Drive your Cargo Truck onto the loading dock at a smelter or storage facility, select the structure, click on the STORAGE button in the Status display, then click LOAD.
You may load Common or Rare Rubble in a Cargo Truck by parking it over an area of rubble and waiting. After a moment, the Cargo Truck will automatically load the rubble. This rubble may be taken to an Active GORF's loading dock to be recycled.
You may load Food in a Cargo Truck, either for an evacuation or to transfer to another player (in multiplayer games). Drive your Cargo Truck onto the loading dock at an Agridome, select the structure, click on the STORAGE button in the Status display, then click LOAD.
In certain missions in the Campaign Games, you must load salvaged wreckage from the Conestoga (the starship that brought the Colonists from Earth) into a Cargo Truck. Once the wreckage has been located and marked by a Scout, drive a Cargo Truck to the wreckage marker and wait. After a few seconds, the wreckage will be automatically loaded into the Cargo Truck.
You may load starship components or satellites into a Cargo Truck for transfer to another player (in multiplayer games). Drive your Cargo Truck onto the loading dock at a Spaceport, then select the structure and click on the STORAGE button in the Status display. The Storage display shows the six storage bays at the Spaceport, just as at the Structure Factory. Click any occupied bay to load the truck.