Wheels up is more slanted towards on demand club with a lower rate per hour than charter IIRC. Dynamic will operate under 135 commuter 9 or less like surf air as a scheduled air carrier. The difference with surf air is they own and staff the planes (pc-12) they use for the club. the advantage to the PC12 is it burns 60% of what the king air burns at practically the same TAS and payload, the aircraft makes the model possible. A 1900 with only 9 seats seems too wasteful to sustain. It will be interesting to see what unfolds.