Aviation Principles: Four Difficulties, 4000 Levels
Aviation Principles has four difficulties with 1000 levels each and ten questions per level; check the forces before choice. Principles levels ask for lift, drag or controls; identify the force first.
航空基础闯关Aviation Basics1000 关航空基础进阶闯关Aviation Intermediate1000 关航空基础高阶闯关Aviation Advanced1000 关航空基础挑战闯关Aviation Challenge1000 关
How it works
- Start at the basic difficulty.
- Ten questions per level; clear one to unlock the next.
- Review at 1/3/7/14/30 days.
FAQ
Which difficulty?
Start at basic and move up when accuracy stays above 80%.
How many levels each?
1000.