1. Rpi 3 keeping my IRC session up and working as small server for small tasks.
2. Rpi 2 has zigbee-module (raspbee) which controls lights.
3. Zero W with camera is currently doing nothing.
To get flying wing stabile you have to add aerodynamic twist to wings which also adds drag. Flying wing looks good, but it's not as efficient as people think. It also has some unwanted flight characteristics like jaw hunting which are missing in t-tail planes.