Using data obtained from the testing of Lakshya, the team researched on different hull configurations and fabrication techniques and this resulted in the design of a trimaran hull. The design was made keeping in consideration manufacturing constraints and the level of craftsmanship available and thus made completely of planes yet optimized for low drag. Seagull SR was made with marine grade plywood of 6mm thickness, cut and bonded together with a special quick drying adhesive. The outer layer of the ASV was waterproofed with wood polish and the joints with Silicon Sealant.
The propulsion system comprised of two BlueRobotics T-200 thrusters attached to the hull directly on the planar surface. The payload on the prototype comprised of a camera and digital compass to provide sensory data and a GPS device on board was used for Waypoint Navigation. The video stream captured using a Microsoft LifeCam Studio camera was used to aid the process of fine navigation along with the digital compass to obtain a Vision based Fine Navigation algorithm to effectively manoeuvre between all the obstacles in its path. The ASV was also capable of being remotely switched from Autonomous Mode to Manual Mode using a FlySky FS-TH9X 2.4 GHz Radio Transmitter/Receiver enabling User Control over the ASV.
Lakshya served as a proof of concept for a trimaran hull design and brought to notice the need for better streamlining and precision manufacturing techniques. Further testing also brought to the forefront the benefits of a modular electronics design over the conventional electronics layout. It also laid down the path for a more robust vision system and highlighted the necessity of sufficient processing power.