| Although the alula is absent, the third finger probably had the same function in controlling separation of the upper surface airflow. |
| The students also tailored the shape and proportions of their blade to keep the airflow subsonic. |
| Efficiency is the result of many factors, including airflow, combustion, and parasitic losses such as friction and windage. |
| With the fan sitting at the other end and sucking air out, a strong airflow is running through the casing. |
| 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. |
