UAV
Elbit Hermes 900 vs Thales Watchkeeper WK450
Watchkeeper was derived from the Hermes 450 lineage, while the Hermes 900 is Elbit's own next step up. With the UK fleet retired, the pairing is a case study in how derivative-nationalization strategies compare against buying the manufacturer's current product.
Specification comparison
| Specification | Elbit Hermes 900 | Thales Watchkeeper WK450 |
|---|---|---|
| Endurance | 36 h | 16 h |
| Ceiling | 9144 m | 4877 m |
| Max speed | 220 km/h | 175 km/h |
| MTOW | 1180 kg | 450 kg |
| Payload | 350 kg | 150 kg |
| Nav | GNSS/INS | GNSS/INS |
| Sensors | EO/IR + radar + SIGINT options | EO/IR + I-Master SAR/GMTI radar |
Values are reproduced exactly as recorded in the DroneZone systems database. Where a figure is absent from the public record, it is marked “Not publicly disclosed” rather than estimated.
How to read this
On the attributes both systems publish as directly comparable numbers, the recorded figures break down as follows.
- Elbit Hermes 900 lists 36 h endurance against Thales Watchkeeper WK450's 16 h.
- Elbit Hermes 900 lists 9144 m ceiling against Thales Watchkeeper WK450's 4877 m.
- Elbit Hermes 900 lists 220 km/h max speed against Thales Watchkeeper WK450's 175 km/h.
- Elbit Hermes 900 lists 1180 kg mtow against Thales Watchkeeper WK450's 450 kg.
- Elbit Hermes 900 lists 350 kg payload against Thales Watchkeeper WK450's 150 kg.
Figures as stated by manufacturers and public documentation; class-level estimates are marked as such in the entries themselves.