BFGoodrich Aerospace subsidiary Rosemount Aerospace has completed operational testing of a prototype broad-area contamination system on a Northwest Airlines McDonnell Douglas MD-80. The system, called the HALO, uses ultrasonic waves transmitted through the wing skin to detect icing and other contamination. In the production version, to be available by late 1995, a network of ultrasonic transducers will serve as the primary means of pre-take-off ice detection. The system will be available for retrofit and new-production aircraft, Rosemount says.

Source: Flight International