HelicoptersPhotos Photos Sikorsky CH-53K King Stallion in Sikorsky Helicopters CH-53K Lot 1-3 assembly line January 2020 Sikorsky CH-53K King Stallion 168780 YCH-53K EDM-3 f/f 21jun16 at Sikorsky Development Flight Test Center, West Palm Beach, FL; pictured Sikorsky CH-53K King Stallion 168780 YCH-53K EDM-3 f/f 21jun16 at Sikorsky Development Flight Test Center, West Palm Beach, FL; pictured Sikorsky CH-53K King Stallion 168781 YCH-53K EDM-4 f/f 31aug16; pictured (pic1) Sikorsky CH-53K King Stallion 168781 YCH-53K EDM-4 f/f 31aug16; pictured (pic1)