| If you're familiar with sectional charts, you will instantly recognize items such as obstacles, VORs, special airspaces, paved and unpaved airports and more. |
| In this and other congested airspaces, it has been shown that the see-and-avoid principle for VFRÂ aircraft is not always sufficient to ensure the safety of flight. |
| Airway epithelial damage may facilitate the passage of fibres from the airspaces into the pulmonary interstitium, which appears to be important in the development of pulmonary interstitial fibrosis. |
| In this and other congested airspaces, the see-and-avoid principle does not always ensure safety of flight. |
| A formal agreement between the Department of National Defence and NAV Canada further defines the responsibilities and the procedures applying to all aircraft transiting the two airspaces. |
| Indeed, airplanes tend to follow fixed routes and cannot choose which Member States' airspaces to cross. |