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        Policy UpdatesNewsroomReoptimizationBIOGRAPHIESAF Senior Leaders      LCAC in chamberAn amphibious Navy Landing Craft Air Cushion is showered with freezing rain in -10-degree temperatures in the McKinley Climatic Lab Oct. 6, 2022, at Eglin Air Force Base, Fla. The LCAC, from Naval Surface Warfare Center Panama City, underwent climate testing in the Lab’s large chamber. (U.S. Air Force photo by Samuel King Jr.)
            
            
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HH-60 chamber testingAn HH-60W Jolly Green II gets hit with 45 mph winds and drenched under 130 gallons-per-minute rain in the McKinley Climatic Lab April 1, 2020, at Eglin Air Force Base, Fla. The Air Force’s new combat search and rescue helicopter and crews experienced temperature extremes from 120 to -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. (U.S. Air Force photo by Samuel King Jr.)
            
            
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LCAC in chamberAn amphibious Navy Landing Craft Air Cushion is showered with freezing rain in -10-degree temperatures in the McKinley Climatic Lab Oct. 6, 2022, at Eglin Air Force Base, Fla. The LCAC, from Naval Surface Warfare Center Panama City, underwent climate testing in the Lab’s large chamber. (U.S. Air Force photo by Samuel King Jr.)
            
            
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        HH-60 chamber testingAn HH-60W Jolly Green II gets hit with 45 mph winds and drenched under 130 gallons-per-minute rain in the McKinley Climatic Lab April 1, 2020, at Eglin Air Force Base, Fla. The Air Force’s new combat search and rescue helicopter and crews experienced temperature extremes from 120 to -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. (U.S. Air Force photo by Samuel King Jr.)
            
            
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Climatic lab returns home under 96th Test WingPublished Oct. 8, 2023
                    
                    By  Samuel King Jr.
                    
                    
                    Air Force Test Center
            **EGLIN AIR FORCE BASE, Fla. (AFNS) --**After almost eight years, **Eglin Air Force Base**’s **McKinley Climatic Lab** returns to 96th Test Wing possession as of Oct. 1.
The realignment moves the lab from **Arnold Engineering Development Complex** back to the 96th Range Group. A 2016 **Air Force Test Center** consolidation moved the lab under the unit at **Arnold AFB**, Tennessee.
The return, to better align with local infrastructure and Eglin AFB’s test and evaluation missions, puts the Lab back under the 782nd Test Squadron.
The capabilities available at the Lab help engineers ensure maximum reliability and operational capability of complex systems as global operational theaters continue to impose harsh environments.
Tests at the facility for the **Department of Defense**, other government agencies and private industry included items such as large aircraft, tanks, missile launchers, shelters, engines, automobiles and tires.
The Climatic Laboratory has five testing chambers: the main chamber; the equipment test chamber; the sun, wind, rain and dust chamber; the salt fog chamber and the altitude chamber.

The main chamber is the largest environmental chamber in the world. At approximately 252 feet wide, 260 feet deep and 70 feet high, tests have consisted of large items and systems for aircraft such as the **B-2 Spirit Bomber** and the **C-5 Galaxy**. The temperatures achieved in the chamber range between -65 degrees Fahrenheit to 165 degrees Fahrenheit with a simulation of all climatic conditions including heat, snow, rain, wind, sand and dust.
The equipment test chamber is 130 feet long, 30 feet wide and 25 feet high. Although it is smaller, it has the same capabilities of the main chamber. Tests usually consist of jet engines, small vehicles and turbine-driven ground power units.
The sun, wind, rain and dust chamber produces ambient or hot test conditions. Wind-blown rain at rates up to 25 inches per hour and heavy sand and dust storms can also be created in this chamber.
Because of the corrosive properties of salt fog test conditions, the salt fog chamber was designed to provide an ambient test chamber that is away from other test chambers. The chamber has two steam-fed heat exchangers that create the temperature to perform the salt fog test.
The chamber is approximately 55 feet long, 16 feet wide and 16 feet high. The chamber doesn’t have refrigeration capability.
The altitude chamber can create pressure altitudes as high as 80,000 feet with a temperature capability of -80 degrees Fahrenheit to 140 degrees Fahrenheit. The chamber measures 13 by 9 feet and 6 feet high.LR 



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