

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
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
News of Air Test and Evaluation Squadron TWO ONE | |
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Locations | |
Years | Location | ICAO/FAA |
1949/ | NAS Patuxent River | KNHK |
Models | Login to Edit | |
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 ![]() |