Rockwell Collins Upgrades Sikorsky S-61s with Pro Line 21 Avionics
The Rockwell Collins Pro Line 21 ADS retrofit for Sikorsky S-61 helicopters is anchored by two 10- by 8-inch primary flight displays.
The Rockwell Collins Pro Line 21 ADS retrofit for Sikorsky S-61 helicopters is anchored by two 10- by 8-inch primary flight displays.