iX12 Manual

IN-FLIGHT BRAKING
In-flight braking requires simultaneous flap and aileron deployment in order
to create drag and slow the aircraft. These complicated mixing functions are
often referred to as Crow or Butterfly. Crow is a flight mode where the flaps
deploy and the ailerons reflex upward. The sailplane is put into a steep dive
before crow is deployed, and even the fastest, most streamlined sailplanes
can be landed slowly, with precision.
To achieve crow functionality, the pre-configured flap-to-aileron mix is used
to raise the ailerons when the flaps deploy. Ensure the mix is configured
correctly. See the Mixing, Back Mixing section for more information.