Radar · Fire control (SAM)
1S91 Straight Flush
1S91 SURN (Straight Flush)
Medium
RU
Search and fire-control radar of the SA-6
The radar vehicle of the SA-6 battery, with two stacked radars: a search radar and a tracking and continuous-wave illumination radar for the semi-active missiles, plus an optical sight. One 1S91 serves four launchers, which makes it the battery's weak point.
Belongs withSA-6 GainfulMedium-range SAM
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Dimensionsfor imagery analysis
- Vehicle
- GM-568 tracked chassis (PT-76-based)
- L × W × H
- Not found in open sources
- Dimension source
- Wikipedia; US Army TRADOC Worldwide Equipment Guide (ODIN)
General
- Role
- Search, tracking and CW illumination for the battery
- Belongs to
- SA-6 Gainful (2K12 Kub)
- Band
- G/H band, 25 kW
Performance
- Range
- ≈ 40 NM (75 km)
- Targets
- 1 at a time per battery (WEG)
Threat
- RWR
- Yes — Straight Flush; CW illumination = missile in flight
- Countermeasure
- SEAD against this single vehicle neutralises the battery
- Threat level
- Medium
News archive 0
Analysed reports from the RU Mil Tracker about this system, newest first. Archive since 2026-07-17.
No reports linked yet.