| Proper filter selection is essential, including low airflow resistance and efficient retention of respirable particles. |
| This is very different to most aerodynamic designs, which start with the vehicle and then determine the airflow. |
| Mixed ice is the most dangerous kind of airframe icing due to its weight and disruption to the airflow. |
| Aside from that we do try and arrange the airflow so they go downward away from your nose and mouth. |
| Further power was to have been obtained by fitting a specially ducted fan to increase the airflow through the jet system. |
| Although the alula is absent, the third finger probably had the same function in controlling separation of the upper surface airflow. |
