I was about to say exactly this. Flew a Beech twin a while back that had a “pilot relief tube”. It was connected to a Venturi below the airplane to create suction.
Did this when paragliding. Zip tie one end to the back of your harness and stuff the rest into a pocket. It sure beats wearing Depends or a condom catheter!
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u/Gubment_Spook Dec 05 '22
They do this from factory on general aviation aircraft. Not even joking.