# Specification

Each Nexus Stribog UAS consists of three UAVs, a GCS with Nexus software, and accessories to effectively operate the system.\
\
The system is delivered in a total of 4 backpacks: 3 backpacks include UAVs, and 1 operator backpack contains the accessories and GCS.

***

### UAV overview

<figure><img src="/files/6gUhGp5j1gqVKf1NnFmK" alt=""><figcaption><p>Stribog UAS scheme</p></figcaption></figure>

| **( 1 ) GPS Here4**                                                         | **( 7 ) Front-facing stereo camera**                                             |
| --------------------------------------------------------------------------- | -------------------------------------------------------------------------------- |
| **( 2 ) Li-Hv batteries**                                                   | **( 8 ) Down-facing IR camera**                                                  |
| **( 3 ) DroneCore autopilot**                                               | **( 9 ) DoodleLabs antennas**                                                    |
| **( 4&#x20;**~~**) Removable SSD - not included**~~                         | **( 10 ) Detachable legs**                                                       |
| **( 5 ) DoodleLabs radio**                                                  | **( 11 ) Lidar**                                                                 |
| **( 6 ) Foldable arm**                                                      | **( 12 ) Foldable propellers**                                                   |
| **( 13 ) 360° camera for interceptor detection - missing from the drawing** | **( 14 ) NextVision Starling (EO/IR gimbal payload) - missing from the drawing** |

{% hint style="danger" %}
The configuration of the Nexus Stribog UAS slightly differs from the drawing. Here are the differences:

1. DoodleLabs antennas are asymmetrically located at the side of the UAV, sloping downward.
2. Removable SSD is not included.
3. A 360° camera for interceptor detection is not shown in the drawing; it is located at the tail of the drone. The camera consists of two parts: a connector fixed in the tail and a removable camera.
4. The NextVision Starling EO/IR gimbal payload is missing from the drawing. This payload is located at the bottom of the UAV.
   {% endhint %}

### Main parameters UAV

| Diagonal wheelbase         | 685 mm                                     |
| -------------------------- | ------------------------------------------ |
| RTF weight without payload | 4.7 kg                                     |
| Max. take-off weight       | 6 kg                                       |
| Flight time                | \~42 min (inc. 10% failsafe and mild wind) |
| Temperature range          | -20 to 55°C                                |
| Max. horizontal speed      | 17 m/sec                                   |
| Max. wind resistance       | 18 m/sec                                   |
| Propellers                 | 16"                                        |
| IP Resistance level        | IP54                                       |

### Sensing system UAV

<table data-header-hidden data-full-width="false"><thead><tr><th></th><th></th></tr></thead><tbody><tr><td>Forward</td><td><p>Stereo camera 95mm baseline</p><p>FOV: horizontal 92.76°, vertical 66.89°, 1280x800px</p></td></tr><tr><td>Downward</td><td>IR camera; FOV: horizontal 47°, vertical 36°, 256x192px</td></tr><tr><td>Global Navigation Satellite System</td><td>GPS + Galileo + BeiDou</td></tr><tr><td>Lidar</td><td>0.2 - 200m range</td></tr><tr><td>GNSS Denied stable altitude limit</td><td>100 m ( ideal 60-100 [m], day and night )</td></tr></tbody></table>

{% hint style="info" %}
GNSS denied solution is always active and automatically refuses GPS updates when signal is unstable/spoofed. It is possible to configure the navigation system to use only visual data. The system should operate during night and day the same way.
{% endhint %}

### Connectivity UAV

| Micro USB port for SSH access |
| ----------------------------- |

### Payload - NextVision Starling EO/IR gimbal

| RGB resolution     | 1280x720 / 1920x1080           |
| ------------------ | ------------------------------ |
| Zoom               | X40 (X20 + X2 digital)         |
| Field of view      | 60° WFOV – 3° NFOV – 1.5° DFOV |
| Thermal resolution | 640 x 480                      |
| Field of view      | 18° WFOV – 4.5° DFOV           |
| Pitch              | -45° to +135°                  |
| Yaw / Roll         | -180° to +180°                 |
| Camera dimensions  | 40mm x 40mm x 65mm             |

***

### Rugged laptop - GCS

| Model                 | Getac S410 (GETS410G4-307 – SP2D5CQ4SDXX)              |
| --------------------- | ------------------------------------------------------ |
| Type                  | Rugged Notebook                                        |
| Display               | 35.5 cm (14"), 1366 x 768 pixels, 1000 nits brightness |
| Keyboard              | QWERTZ layout (German - DE)                            |
| Processor             | Intel Core i5                                          |
| RAM                   | 8 GB                                                   |
| Storage               | 512 GB SSD                                             |
| Graphics              | Integrated (based on Intel Core i5)                    |
| Operating Systems     | Linux (Ubuntu distribution)                            |
| Wireless Connectivity | Wi-Fi (802.11ac), Bluetooth                            |
| Ports                 | Thunderbolt 4, Audio                                   |
| Battery               | 4200 mAh                                               |
| Ingress Protection    | IP53 (dust and splash resistant)                       |

***

### Radio link (M1-M6 Hex bands)

For GCS - Doodle Labs RM-2025-62W3

For UAV - Doodle Labs RM-2025-62M3

### Antennas GCS

One patch (directional) antenna (Southwest Antennas 1009-015) (peak 12 dBi gain)

One omnidirectional Doodle Labs ANT-2025-2-GN-TNC (peak 2.4 dBi gain)

### Antennas UAV

Two Doodle Labs ANT-2025-3-O (peak 4 dBi gain)

***


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