Engineered for naval environments, our shipboard hydraulic-pneumatic catapults integrate hydraulic pressure (32 MPa) with pneumatic assist (10 bar) to generate consistent launch forces in rough seas. The anti-roll stabilization system uses a 6-DOF motion platform to compensate for ship movements (pitch/roll ±20°), while a corrosion-resistant coating (Zn-Al alloy, 80μm thickness) protects against saltwater exposure. The catapult's dual-loop hydraulic system (primary/backup) ensures mission reliability, and the pneumatic accumulator provides emergency launches during power outages. Capable of launching UAVs in 40 knot winds, this system integrates with shipboard fire control systems (Mk 41 compatibility) and features a rapid maintenance design (component replacement in <1 hour). View maritime certification documents (ABS, DNV GL) at [https://www.uranustj.com/] or request a naval application technical brief.