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Americans are getting bigger, says
Kathleen Robinette, who's studied human body measurements for the U.S. Air Force for three decades.
But in general, the problem's "not you -- it's the seat," she says with a chuckle.
Since Robinette's first airline seat study for NASA and the FAA in 1978, she has a different perspective when she boards an airliner. "I always see all kinds of arms hanging out into the aisles. That means the seats are too narrow, and there's nowhere for the shoulders and arms to go except into the aisle because there's not enough room in the seat."
When "you keep getting your arm whacked by the cart as it comes down the aisle," don't feel guilty, she says. It happens to everybody. "And it's because of the seats."
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But the American rear end isn't really the important statistic here, Robinette says.
Nor are the male hips, which the industry mistakenly used to determine seat width sometime around the 1960s, she says.
"It's the wrong dimension. The widest part of your body is your shoulders and arms. And that's much, much bigger than your hips. Several inches wider." Furthermore, she says, women actually have larger hip width on average than men.
The industry used the male hip as a seat measuring stick "thinking that it would accommodate the women too, but in fact they don't accommodate the larger women."
The result: Airline seats are approximately 5 inches too narrow, she says. And that's for passengers in the 1960s, let alone the supersized U.S. travelers of today. ...