The Australian Aviation Theory Forum is a place for student pilots to ask questions, discuss CASA theory exams and share knowledge about RPL/PPL, CPL, IREX and recreational aviation study.
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Joined: Jan 19, 2026
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Usable fuel definition
I messed up an online exam question which also had the term useable fuel. The question said the ECHO had 40USGAL 'useable' in the main tanks which I a...
8 years ago
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