Hey Dick,
I do.....Every Day.......And...... I secretly 'lurve ya' for it...........
(But, I would NEVER NEVER NEVER admit it publicly...................)
BUT......by those days most, or if not ALL of those 'nasty' big aeroplanes - 'AIRLINES' types were 'TURBOS / JETS' and burned AVTUR...??.
As far as I am / was aware, the 2c levy for FS was based on AVGAS.....so the AIRLINES got us for FREE...??
Please correct me if I'm wrong.....