Rockwell Collins has delivered its Pro Line 21 Integrated Display System (IDS) for installation on two Sikorsky S-61 helicopters. The installation was accomplished through a collaborative effort with Toronto-based Vector Aerospace. The Pro Line 21 IDS retrofit package for the Sikorsky S-61 includes two 10-inch-by-8-inch LCD primary flight displays, a solid-state weather radar system with turbulence detection, an attitude and heading reference system (AHRS), Mode S transponder with ADS-B Out capability, and a dual display control panel. The system is designed for adaptability to add functions, such as synthetic vision, to meet future airspace requirements and capabilities.