Pre-flight check always 

Couple of thoughts ! we all have flown three channel models (a) why didn't the pilot apply rudder to correct for the roll (easier said than done though) (b) last minute push over and the grassland crash means could be easy peasy repair, (Or is it totalled?)

It all happened very quickly. I don't think most pilots would know how to react to that. I don't know how badly damaged it was. The airframe got retrieved out of my view. You can almost guarantee the airframe would be a total loss. I would be more worried about the engine.

sad... that's all I can say, since these jet planes fly so fast.. there are less chances of recovery that too after immediate take off, crashing a rc jet is always expensive.. I remember in 2007 a 50cc brand new composite arf Extra 300 crashed on the first flight, that was due to a faulty aileron servo.. this is what the pilot said