I drove my yak 54f around the neighborhood never took off but did hover for 5 seconds[8D] (when i was holding vertical and let go[X(])......this all sounds bad but it was just a test and everything worked great so far had to tighten cables and gearbox screw.
never left ground yet waiting for no wind for the first flight
e-flite yak 54f
using park370brushless w/ 6.6.1 gearbox 11x8 gws prop, 20 amp esc, 3 featherlite hs-55 servos, hi tec micro 555 receiver, and TP 1320 li po batt.