# Manage Main Engine Speed
To add a Main Engine Speed to a vessel, navigate to the [Speed and Consumption](/release-7.3/voyage-management-system/step-by-step-guides/vessels/vessel-speed-and-consumption-data.md) section of the Vessel drawer.
In the Main Engine table, click Add Main Engine Speed and fill in the fields.
You can add multiple speed and consumption data, for example one speed order for full speed and one for eco speed.
An entry to the speed and consumption list may be the default laden and default ballast speed, but the Vessel may only have one of each.
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