Figure 4From: Orientation and disorientation in aviationThe dissociation between tilt and pitch attitude change in a helicopter. While the aircraft developed an increasing pitch-up attitude during the final 10 s of flight, there was no corresponding change in the angle of the combined Gx and Gz force vectors as measured by on-board accelerometers. The aircrew would have had no sensation of backward tilt to alert them to the increasing pitch-up attitude of the aircraft.Back to article page