An HH-60W Jolly Green II sits under bright lights used to create heat in the McKinley Climatic Lab March 19 at Eglin Air Force Base, Fla. The Air Force’s new combat search and rescue helicopter and crews experienced temperature extremes from 120 to minus 60 degrees Fahrenheit as well as torrential rain during the month of testing. The tests evaluate how the aircraft and its instrumentation, electronics and crew fare under the extreme conditions it will face in the operational Air Force. ( Air Force photo/Samuel King Jr.)

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Photo credit: © APFootage / Alamy / Afripics
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Keywords: 33rd, 413th, 53rd, 96, air, aircraft, airman, base, developmental, eglin, fighter, florida, force, helicopter, hh60, jollygreen, operational, test, weapons, wing