Is hard to detect
We have not found a sufficient test of low observability. Small size alone does not establish that a drone is hard to detect.
Last reviewed
What we are looking for
Is detection demonstrably difficult under defined sensor and environmental conditions?
Where this applies
No qualifying low-observability test in the publications we checked
What has been observed
We have not found enough information to confirm this.
What limits this finding
- Field measurements detected and tracked a small Phantom 4.Yang et al. / IET Radar, Sonar & Navigation · Apr 26, 2021
What we still need to know
A comparative detection test tied to an identified system/version.
What would change our view
New measured detection evidence, including successful detection.
What would be enough to confirm it
A detection comparison with stated conditions. Small size or a stealth label alone is insufficient.
How this finding has changed
We have not found a sufficient test of low observability. Small size alone does not establish that a drone is hard to detect.
Checked again; no change. Reviewed; rating and confidence unchanged. The inspected material does not close the remaining gap.
We have not found a sufficient test of low observability. Small size alone does not establish that a drone is hard to detect.
Checked again; no change. Reviewed; the rating and confidence remain unchanged. No qualifying new evidence resolved this parameter’s gap.
We have not found a sufficient test of low observability. Small size alone does not establish that a drone is hard to detect.
First review. Initial assessment; no previous cycle for comparison.