Helicopter Sikorsky CH-53K King Stallion Serial Register 168781 used by US Navy USN ,Sikorsky Helicopters. Built 2016. Aircraft history and location Aircraft History 168781 Sikorsky Helicopters 04YCH-53K EDM-4 f/f 31aug16 2017-06-30 A KNHK moves to NAS Patuxent River CH-53K Arrived to PAX in First Cross Country Flight 2018-03-08 A KNHK at NAS Pax River with USMC titles 2018-08-22 B KLGF on trials under extreme conditions, high temperatures, and thick dust at U.S. Army Yuma Proving Ground, AZ 2018-09 B KLGF degraded visual environment (DVE) Testing in Yuma proving ground, AZ CH-53K Degraded Visual Environment Testing US Navy 2018-01-18 A KNHK asg HX-21, Pax River lifted a for the first time a Joint Light Tactical Vehicle (JLTV) HX-21 CH-53K Lifted a Joint Light Tactical Vehicle (JLTV) Send Updates Use APP to upload photo @ (optional) When Now? / / Send