Keywords: US Navy 100802-N-3852A-035 An AH-1Z Cobra helicopter assigned to Rotary Wing Aircraft Test Squadron (HX) 21, based in Patuxent River, Md., lands aboard the amphibious assault ship USS Wasp (LHD 1).jpg en ATLANTIC OCEAN Aug 2 2010 An AH-1Z Cobra helicopter assigned to Rotary Wing Aircraft Test Squadron HX 21 based in Patuxent River Md lands aboard the amphibious assault ship USS Wasp LHD 1 This upgraded version of the Cobra is not yet available to the fleet The helicopter features a larger engine and has two more blades than the Cobra's original two giving it more power and maneuverability Wasp is conducting test flight operations and was chosen as the platform to evaluate the limits and capabilities of newer models of aircraft U S Navy photo by Mass Communication Specialist 1st Class Rebekah Adler/Released 2010-08-02 100802-N-3852A-035 Navy http //www navy mil/view_image asp id 89890 U S Navy photo by Mass Communication Specialist 1st Class Rebekah Adler PD-USGov-Military-Navy USS Wasp LHD-1 flight deck Air Test and Evaluation Squadron 21 United States Navy AH-1Z Viper |