From the first lesson to the threshold of the airlines: how an aeroplane flies, weather, rules and navigation, and a flight simulator in the page with the real training aeroplanes. Thirty volumes, every plate in English and Chinese.
Progress, the logbook and settings live only in this browser. Nothing is sent anywhere unless you send a report.
The report carries the plate, your message and any text you had selected. It carries no name or address of yours.