Development of the Amogh Survey System

Larsen & Toubro, INDIA in conjunction with Edgelab Srl, ITALY have developed the Amogh Survey System, a new 1000m class autonomous underwater vehicle aimed at conducting planned hydrographic surveys using multiple sensors (payloads) namely, Multi-Beam Echo Sounder (MBES), Side Scan Sonar (SSS), Sub-Bottom Profiler (SBP), Underwater High resolution Camera and Conductivity Temperature and Depth (CTD) / Sound Velocity Profiler (SVP). Amogh’s survey system complies with the International Hydrographic Organization (IHO) Standard for Hydrographic Surveys S44 and IMO regulations for safety of navigation. The Amogh Survey System includes an electro-hydraulic telescopic launch frame and launch ramp capable of conducting AUV recovery operations by Nose-Line Recovery. The system can be installed on-board commercial and military survey ships, as well as vessels of opportunity such as barges and pontoons with minimal modifications. It can also be launched and recovered from the pier. It consists of a self-contained, air conditioned storage container with adequate space to additionally conduct maintenance of the vehicle.We present the vehicle design, system architecture, realization and results of sea trials performed in the Mediterranean Sea, off the west coast of Italy.