Gregor McGrath demonstrates some of the high points and extra details about the Compass 7HV Flybarless RC Heli Kit. This video packs a good deal of information into one minute. This model packs integrated washout arms. This rc heli’s canopy is light and easily detachable and has a near perfect center of gravity. The model has an adjustable battery tray which sits in sliding rail system. This allows for some experimentation with the center of gravity.