Amazing details, but unstable on my iPad Mini 2

I was a Pocket Planes by NimbleBit addict, but this leaves that crude little game in the dust. After a few weeks, I figured out how to placate unhappy passengers in KLM. The context upgrades on the airport facilities are great (up arrow by hangar brings up features to,upgrade hangar). Big problem is game crashes about every 15 minutes on my old iPad Mini 2. I space out changes so An autosave retains them. Note that storms really tear up airports - they dont fix themselves!

Go3006 about Aviation Empire, v1.8.1