# 4.3 Hull Specification

### 4.3.1 Main dimensions

| Dimensions                         | \[m] |
| ---------------------------------- | ---- |
| Maximum length                     | 2.10 |
| Maximum width                      | 1.85 |
| Maximum height (including draught) | 1.20 |

### 4.3.2 Antenna

Antennas are allowed to be built over the height limit as long as there are no sensors attached or built over the height limit.

### 4.3.3 Visual Indicators

| Indicators |                                             |
| ---------- | ------------------------------------------- |
| Red        | Kill switch activated. Propulsion disabled. |
| Yellow     | Remote operation.                           |
| Green      | Autonomous operation.                       |

All three lights must be visible from all directions.

### 4.3.4 Example hull

To encourage a focus on the autonomy component of the challenge, an example hull design is offered to teams which they are free to use or modify. Teams are not required to utilize the example hull. To the contrary, creativity and innovation will be rewarded, so deviating from the example hull may be beneficial. Below you can see an illustration of the example hull which is provided by our bronze sponsor Sintef Ocean! This will be published as a digital CAD-file for teams at a later date.

![Sintef Ocean Hull Design](/files/LvVZ2jGTaHbxaNI9WGGE)


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