Originally Posted by C.O.P.O
Whats up with the tail curving up? I have seen this before on some other helis. Is there an advantage to doing this?
From a performance standpoint the higher tail rotor means that it is closer to the height of the rotor disk so it won't make the heli lean as much from the thrust of the tail blades.
Also if this is a scaled up MSR, one of the characteristics that made that heli stable is the height the rotor head sits from the majority of the weight in the heli. Longer shaft makes for a better pendulum effect for stability. So the tail rotor has to go upward to match a "normal-ish" height ratio or else it would have greater purchase to lean the heli.