Hi. I am in the process of making EBBR for Endless ATC (github).

Something I've noticed is that the maximum level / ceiling of the airspace isn't working correctly.

[airspace]
radius = 30 ; airspace radius in NM
zoom = 7.0 ; default zoom level, increase to zoom in
elevation = 175 ; ground altitude in feet
floor = 1500 ; minimum selectable altitude
descendaltitude = 8000 ; minimum initial altitude for arrivals
ceiling = 19000 ; maximum selectable altitude
above = 1000 ; SID top altitude in feet (above ceiling)
transition = 5000 ; lowest altitude in feet to be displayed as flight level

With the above example:

• The ceiling is 19000, but the maximum level for arrivals in the game is 14000, for departures 14000 not on SID and 16000 on SID.
• The "above" parameter isn't clear. What does "SID top altitude"  mean?

Hi!

• The altitudes have to be within a certain range. If the ceiling would be very high, then departures will likely incorrectly 'divert' at the boundary instead of flying through the ceiling. Looks like in your case the ceiling was lowered to FL140 automatically. Perhaps some limits could be adjusted, however more divergent values than those used in built-in airports may skew the game mechanics.
• The 'above' property is just the highest altitude you can select for departures only, being somewhere above the 'ceiling' value. For example at EHAM it is set at FL130. I'll try to improve the sketchy explanations :)