The forward or service speed at which the ship is designed to operate (see ISO 10303-218, section 4.2.32.2). DesignSpeed has the following attributes:
| Attribute | Namespace | Type | Use | Default | Fixed | Description |
|---|---|---|---|---|---|---|
| numericvalue | ocx | xs:double | req. | The numerical value of the quantity. | ||
| unit | ocx | xs:IDREF | req. | The reference to the unitsML reference unit. |