Rocrow Wingbeat 50mm EDF maiden

Got my Rocrow from www.readymaderc.com when it was on sale. Kit included installed servos, and an installed RC lander 10-blade rotor in an alloy shroud (as sold by Hobbyking as "Dr Mad Thrust"), motor around 3250kV, so good for 4s. However the EDF was noisy because it was not balanced, not even the adapter ran true, far from it. Could not get it balanced to the perfection I want in a such a bird, I am using a FMS 50mm 11-blade 3s version (nominal 5400kV), got it buttery smooth by clocking the spinner, max amps 35, so I use a 40A ESC. It was wise to go 3s because I get a good CG with a 1600mA 3s lipo, and would not be able to fit my 1800mA 4s anyway. With the thrust line below CG you have to be careful, no full throttle as it will somersault, or stall. Don't like the rubber bands, will find another solution to have a removable wing. The noise in the second part of the vid is not from the fan but from some plastic I used to partly close the hole behind the fan. Will fix that, so it is quiet as it should be. And play with aileron differential so it rolls more axially. Nice bird!