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How much turbulence can an airplane bear? Every year, the question is asked and answered by a group of Air Force and NOAA pilots and researchers known as the hurricane hunters. The initiative began, unofficially, in 1943, when Lieutenant Colonel Joseph Duckworth flew into the eye of a hurricane near Galveston, Texas. Duckworth made his flight on a dare, but the programs have since taken on a more serious role: to report on hurricanes as they develop and to study their inner mechanics. Last year, Joshua Wadler, a hurricane hunter and a meteorologist at Embry-Riddle Aeronautical University, in Florida, went through the turbulence data from every NOAA hurricane flight since 2004, and two infamous ones from the nineteen-eighties. He measured how much each flight was thrown around along six axes of motion: roll, pitch, yaw, surge, sway, and heave. (The words alone can induce vertigo.) Then he made a list of the bumpiest flights ever recorded.
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Nasa was targeting March for the launch, but its plans were delayed after a helium leak was discovered on the Space Launch System (SLS) rocket.
When disaster strikes on a flight these days, it’s almost never the way we fear. The wings won’t rip off in a gale. The plane won’t get thrown into a mountain. In the seven decades since the first paying passengers flew on a commercial jet airliner—from London to Johannesburg in 1952—the number of commercial flights has increased exponentially, while the risk of dying on one has grown incredibly small. “It works out to a probability of fatal injury of one in forty-six million flights on U.S. and E.U. airplanes,” Jacob Zeiger, the air-safety investigator at Boeing, told me. When an accident does happen, it’s usually because of human error or a ground collision or some combination of factors, including the simple act of walking around on a bumpy flight.。业内人士推荐WPS官方版本下载作为进阶阅读