The FrSky S8R adds 3 axis stability to your winged aircraft. In addition to stabilizing standard planform aircraft, the receiver also can stabilize, flying wings as well as aircraft equipped with V-tails.
The S8R stabilizing parameters can be configured in the field using your FrSky transmitter or by connecting the S8R to your PC using the optional STK usb adapter. The S8R can also function as a typical 8 channel receiver by turning off stabilization.
If you would like to peruse the user manual, click here.