A Vital Topic... Deserving Of NASA's Attention (and YOURS) Late last year, ANN's Aero-TV crews spied a truly marvelous piece of flight simulation technology... NASA Glenn's icing flight training simulator. Demonstrated at the Interservice/Industry Training, Simulation and Education Conference (I/ITSEC), we were incredibly impressed at the apparent accuracy of the model (ANN's Jim Campbell has plenty of Twin Otter time -- the aircraft used in the icing encounter sim model -- and knows only too well that the icing behavior they displayed is what he has experienced, personally, in real icing conditions). The high-fidelity simulation model for icing effects flight training was developed from wind tunnel data for the DeHavilland DHC-6 Twin Otter aircraft. First, a flight model of the un-iced airplane was developed and then modifications were generated to model the icing conditions. The models were validated against data records from the NASA Twin Otter Icing Research flight ...