the exhila's fly on b20 hackers and razors very well, geared to swing a 10" prop and 8 small cells (KAN950 or similar), or 3-cell lipo packs. The axi, without a gearbox, ain't gonna work very well according to the specs on hobby-lobby's site. That particular one only spins ...
These qualities led to friends wanting it on their models and ultimately PlainFlight being refined and posted on GitHub for other hobbyists to have a go and enjoy. While PlainFlight has been developed for small electric powered model planes it could easily be modified and used upon other small...