on commercial flights [part 91] in FAR 23 small planes I wear a white 'pilot' shirt--open -- with Three epaulets and little silver wings--and shorts or jeans and sneakers--just for pychological reassurance--they feel less jittery especially if the O2 masks have to/should be out [yes, I brief them on the ground about O2 and all other safety issues
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in case you're wondering why part 91 ops--well-I jus' like being a pilot...period
Not an ego thing just don't like to scare the ground people---
PA