Comment by inetsee
4 years ago
My wife worked on the project to upgrade the C-5 cargo plane's cockpit. She's 5 feet 1 inch tall, so she was chosen as the test person for the 5% end of the usability range. If she couldn't reach or operate a control in the cockpit it was a problem and the control had to be redesigned.
My wife is 4'10" and often has trouble finding cars in which the driver's seat can be adjusted to fit her... I'm guessing she's well below the 5th percentile (at least in the US).
I hope she doesn't have really long arms.