1949 to present


usa Air Test and Evaluation Squadron TWO ONE

US Navy

HX-21 Blackjack









Air Test and Evaluation Squadron TWO ONE US Navy

Air Test and Evaluation Squadron TWO ONE
Performs testing and evaluation of all Navy, Marine Corps and Coast Guard helicopters, tilt-rotors, Unmanned Aerial Vehicles (UAVs) and their associated sensor and weapons systems

1949 - Rotary Wing Flight Test Section
1975 - Rotary Wing Aircraft Test Directorate (RWATD)
1995 - Rotary Wing (aircraft) Test Squadron (RWaTS)
2002 - Air Test and Evaluation Squardron TWO ONE (HX-21)

As of 2020, HX-21 is engaged in testing six families of aircraft, including the CH-53K King Stallion, Marines/Navy MV-22, USAF CMV-22B and the Presidential helicopter fleet of HMX-1



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  News about HX-21


CH-53K Completes Second Successful Sea Trial

CH-53K Completes Second Successful Sea Trial

05-Apr-23 - The US Marine Corps’ new heavy-lift helicopter, the CH-53K King Stallion, completed its second sea trials with five days and nights aboard the San Antonio-class amphibious transport dock USS Arlington (LPD24). This follows the initial successful sea trials of June 2020 #USSArlington
Osprey for First Time on Hospital Ship USNS Mercy

Osprey for First Time on Hospital Ship USNS Mercy

21-Apr-21 - US Military Sealift Command hospital ship USNS Mercy (T-AH 19) conducts first ever flight deck landing of a V-22 Osprey tilt-rotor. US Navy Air Test and Evaluation Squadron HX-21 exercised flight operations over the course of several days #Osprey
HX-21 Test Osprey on LPD-class Ship

HX-21 Test Osprey on LPD-class Ship

02-Nov-20 - US Navy’ Air Test and Evaluation Squadron HX-21 completed a 10-day detachment aboard the amphibious transport dock USS New York (LPD 21, San Antonio-class) operating Marine MV-22B, Navy CMV-22B, USAF CMV-22B and Presidential Osprey tilt-rotors during 180 shipboard approaches and landings, totaling 45 hours of flight testing #LPD
CH-53K King Stallion First Time at Sea

CH-53K King Stallion First Time at Sea

25-Jun-20 - The future USMC heavy lift helicopter, the Sikorsky CH-53K King Stallion, completed first sea trials aboard the amphibious assault ship USS Wasp (LHD-1) #USSWasp
First Flight of Navy COD CMV-22B Osprey

First Flight of Navy COD CMV-22B Osprey

21-Jan-20 - The Bell/Boeing CMV-22B Osprey completed its first flight at Bell’s Amarillo Assembly Center in Texas. The CMV-22B is the new Carrier Onboard Delivery (COD) aircraft for the US Navy to replace the C-2A Greyhound in the transport mission between shore bases and aircraft carriers. HX-21 squadron will conduct test flight program. #FirstFlight
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  Locations


YearsLocationICAO/FAA
1949-    NAS Patuxent RiverKNHK




helicopter   Models


Years Models
2020-    CMV-22B Osprey
2018-    US Marine Corps VH-92A
2017-    US Marine Corps CH-53K King Stallion
2004-    US Marine Corps V-22 Osprey
US Marine Corps UH-1Y Venom






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