# Stream C at Ukraine (combat zones): deployment

Canonical ID: `e43f96c7-46f0-429e-a647-6c4561602329`

Threod Eos UAVs deployed by Ukrainian Armed Forces for reconnaissance and artillery targeting since 2017. CATA pneumatic launchers used to launch long-range drones. 100-200 drones supplied. Company operates a training center in Ukraine.

## Key facts

- **Fleet size:** 100-200 drones
- **Use case:** ISR, artillery targeting, loitering munition launch
- **Operator:** Ukrainian Armed Forces

**Trust tier:** Catalog entry · 2 sources · not yet field-verified

_Last updated: 2026-07-09_

- **Slug:** threod-eos-ukraine-2017
- **Status:** operational
- **Model:** [Stream C](/models/threod-systems-stream-c.md) (id: `e62c854c-aa0d-4929-9f45-bfef3afb509d`)
- **Company:** [Threod Systems](/companies/threod-systems.md) (id: `6761d66c-35ba-40cf-b184-aa2bb838f41a`)
- **Location:** [Ukraine (combat zones)](/locations/ukraine.md) (id: `7bc08a31-4d9a-48bc-86fc-f2114789d4b5`)
- **First seen:** 2017-01-01T00:00:00.000Z

## Verification log (0, append-only)

_No verifications recorded._

## Sources (2)

1. https://www.defensenews.com/global/europe/2025/09/11/this-estonian-firm-helps-launch-ukraines-combat-drones/
2. https://breakingdefense.com/2026/03/in-tiny-estonia-drones-lead-booming-defense-expansion/

## Common questions

### What is the Stream C deployment at Ukraine (combat zones)?

Stream C, built by Threod Systems, is recorded as a deployment at Ukraine (combat zones) on the DEPLOY registry. Threod Systems operates the deployment directly.

### Who operates Stream C at Ukraine (combat zones)?

Threod Systems, the manufacturer of Stream C, operates this deployment directly. This is a maker-deploys-its-own-product arrangement rather than a customer pilot.

### When did the Stream C deployment at Ukraine (combat zones) go live?

The deployment is recorded as starting January 1, 2017 on the DEPLOY registry. Earlier activity may exist but is not yet sourced.

### Have there been incidents at the Stream C deployment at Ukraine (combat zones)?

No active incidents affecting this deployment are recorded on the DEPLOY registry. Absence of recorded incidents is not a guarantee no incident occurred; DEPLOY records only sourced incidents and suppresses retracted ones.


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