im still learning on all this heli stuff i have a rappy just wondering why the raptors are the only ones that i can find that has the flybar above the head and all the others are below. Is there a performance difference or what.[&:]

It's been debated over and over, some say there is, some say there isn't. Most can't tell any difference. As a side note, many small electrics have the flybar ontop rather than below, such as the blade CP, Hornet, etc.

The usual argument is that with the flybar on top, the flybar won't interfere with the downwash of the main rotorblades providing a smoother flight because of less turbulent air entering the rotor-area, this theory might hold up, of course, aslong as you never apply any negative pitch. Once you start to apply negative pitch, then it goes out the window. So it just sort of comes down to personal opinion I guess.

flybars give faster cyclic response but with less authority then main blades, moving them higher gives them a bit more authority but less stability (which is good for a 3D setup). rotor wash has little to do with their authority either above or below due to the rotor wash is very little near the center of the rotor disk and mostly on the outer 1/3 and the only times I've had what I'd call main blade interference is with the use of inline flybars during high pitch 3D with very high head speed, the paddles seam to sometimes have 'Retreating Blade Stall' when running in the same plane as the main blades and this gives a very abrupt right/aft cyclic command without a user input.

kc