The Boeing 787 Dreamliner has begun a series of extreme-weather tests at Valparaiso, Fla. A special hangar at the McKinley Climatic Laboratory at Elgin Air Force Base allows the airplane to experience heat as high as 115 degrees Fahrenheit (46 Celsius) and as low as minus 45 degrees Fahrenheit (minus 43 Celsius). After the airplane is stabilized at either the hot or cold temperatures, flight test technicians will follow the Airplane Maintenance Manual to perform the steps required to prepare the airplane for flight release and operate under these conditions. Sensors and monitors will allow the test team to determine if all systems hardware and software operate as expected.
Cold-weather testing is being conducted first, with preliminary hot-weather testing to follow. Additional extreme-weather testing will be conducted later in the flight test program.
