# Speed & Consumption

TC contracts inherit the vessel’s speed and consumption configuration, with the option to override it. For TC In contracts only, the configured values are available for use on voyages under the contract. See [here](https://docs.dataloy.com/voyage-management-system/voyages/maintain-voyages/overview/vessel#speed-and-consumption) for more details.

For further details on the significance and functions of Speed cards, Boilers, Generators, and Air Emissions in Dataloy VMS, please refer to the vessel [Speed & Consumption](https://docs.dataloy.com/voyage-management-system/step-by-step-guides/vessels/vessel-speed-and-consumption-data) page.

<figure><img src="https://2019030016-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FWoySkL2wtBxvxqGI8yWa%2Fuploads%2FqWAOnk0VybzK2x6cN1zh%2Fimage.png?alt=media&#x26;token=1f925888-e992-4111-a02a-ff52a66a3f82" alt=""><figcaption><p>(Figure 1) TC Speed &#x26; Consumption tab</p></figcaption></figure>