# 7.4 Hull Specification

### 7.4.1 Main dimensions

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

### 7.4.2 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.

### 7.4.3 Visual Indicators

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

All three lights must be visible from all directions. During all weather conditions the lights should be visible from 100 metres.