Flight rules: Difference between revisions

[http://en.wikipedia.org/wiki/Controlled_airspace Controlled airspace] means aircraft must identify themselves with the designated [[ATC]]. The aircraft will be directed to paths and altitudes to prevent collisions and aid in take-off and landing. Most airfields have controlled airspace around them.

[http://en.wikipedia.org/wiki/Uncontrolled_airspace Uncontrolled airspace] means the pilot is fully responsible to prevent collisions (with other aircraft). There is no external radar or [[ATC]] to assist with this task.

[http://en.wikipedia.org/wiki/Visual_flight_rules '''VFR'''] are applicable when the pilot can see around to '''navigate''' and to prevent collisions. The altitude must be low enough to see landmarks for navigation. The weather or minimal meteorological conditions to allow VFR are defined in [http://en.wikipedia.org/wiki/Visual_meteorological_conditions Visual Meteorological Conditions ('''VMC''')]. As can be expected one of the most important condition is good visibility. If VFR is not possible [[IFR]] must be used.