Solstice MAS is a compact multi-aperture side-scan sonar developed for Unmanned Underwater Vehicles (UUVs), Remotely Operated Tow Vehicles (ROTVs), and Autonomous Underwater Vehicle (AUV) platforms requiring high-resolution imagery with minimal power consumption. Designed to maximise mission endurance without compromising imaging quality, the system delivers high-fidelity geo-coded sonar data, integrated bathymetry, and industry-leading area coverage rates for mine countermeasure, search, classify, and mapping operations. Its compact footprint and low logistical requirements make it particularly suited to low-power AUV platforms conducting long-duration subsea missions.
Built around advanced onboard processing and multi-aperture sonar technology, Solstice MAS utilises 32-channel processing, Multi-path Suppression Array Technology (MSAT), and Real-Time Array Calibration (RTAC) to generate high-contrast imagery in shallow and challenging underwater environments. The system supports real-time Automatic Target Recognition workflows and post-mission analysis while maintaining precise along-track resolution and stable geo-referenced data output. Open interfaces, simplified mechanical integration, and low operational power demand allow rapid integration into a broad range of UUV and ROTV platforms for defence, hydrographic, and offshore survey applications.
Specifications:
| Swath: | 200 m (100 m range) |
| Along-track beamwidth: | 0.15° |
| Operational speed: | 2 to 6 knots |
| Frequency band: | 725–775 kHz |
| Source level: | 220 dB re 1 μPa @ 1 m |
| Receiver channels: | 2 x (32 + 4) |
| Transmitter channels: | 2 x 32 |
| Dimensions: | 682 mm x 270 mm diameter |
| Weight: | 300 m and 600 m depth rated – 4.22 kg WIA / PPV 2.88 kg WIA 1,500 m depth rated – 13.8 kg WIA / PPV 7 kg WIA |
| Power consumption: | 18 W operational / 26 W including onboard RT |
