| 1 to 2 oktas (eighths) |
| 5 to 7 oktas (eighths); this constitutes a 'ceiling' in aviation |
| 8 oktas (fully overcast) |
| Only high-altitude cirrus clouds |
New: Boost Your Preparation!
On our site, you'll now find our new PRO Simulation Panel! Here are some of the exclusive benefits you get by unlocking it:
You can still continue with the free version, which gives you access to 75% of the questions with a limit of 3 simulations every 2 hours.
Upgrade to the PRO version to practice without limits and unlock all features for a complete preparation.
...and much more!
📱 Or discover the Apps to study offline too