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Re:The $20 an hour Cessna 172 experiment by grepfru_it on Thursday February 09, 2023 @03:36PM (#34731005)
>People are too heavy now, the 152 sized plane is no longer used as much because 2x 200lb adults will put it over it's max takeoff weight if the gas is topped off or something.

Why would you fly with full fuel tanks while taking lessons? However, your comment is correct that 152 is horribly underpowered

Re:The $20 an hour Cessna 172 experiment by Pasorrijer on Thursday February 09, 2023 @04:54PM (#34732099)
Safety purposes. If you're away from the school, a student gets off course, bad weather, etc, they would much rather you have extra fuel than too little.

It's also dependent on what's being flown. Sometimes they will fly with less for weight and balance.

Re:The $20 an hour Cessna 172 experiment by wkat4242 on Thursday February 09, 2023 @06:46PM (#34733427)
Also condensation in the tanks. Keeping them topped off helps prevent that.