CV-22s visit Spangdahlem for acoustic testing
A U.S. Air Force CV-22 Osprey aircraft, assigned to the 352nd Special Operations Wing, Royal Air Force Mildenhall, England, rests on the flightline at Spangdahlem Air Base, Germany, Sept. 20, 2016. The Osprey visited Spangdahlem from Sept. 20-23 to undergo acoustic testing, which gaged the acoustic noise output of the aircraft. (U.S. Air Force photo/1st Lt. Meredith Mulvihill)

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Photo by: 1st Lt. Meredith Mulvihill |  VIRIN: 160920-F-TD086-025.JPG