Flight Rules Flashcards
Describe IFR
Instrument Flight Rules
Electronic equipment based Navigation
GPS and Other equipment
Can still see out of the window
Describe VFR
Visual Flight Rules
Look out of the wndow
Use maps and charts to fix location
Keep out of cloud
Define Night
The hours between the end of evening civil twilight and the beginning of morning civil twilight
What does the choice of Flight Rules depend on?
Type of Airspace
Weather
Pilot Qualifications
What is VMC?
Visual Meteorological Conditions
What are the VMC minima at and above 10,000ft?
8km flight visibility
1500m horizontally and 300m vertically from cloud
What are the VMC minima below 10,000ft but above 3,000ft?
5km flight visibility
1500m horizontally and 300m vertically from cloud
What are the VMC minima at and below 3,000ft?
In Controlled Airspace
5km flight visibility
1500m horizontally and 300m vertically from cloud
By day in Uncontrolled Airspace
5km flight visibility
Clear of cloud and surface in sight
If 140kts or less and the probability of encounters with other traffic is low
1500m visibility
Clear of cloud and surface in sight
What are the VMC minima for helicopters below 3,000ft?
In uncontrolled airspace
1500m visibility
Clear of cloud and surface in sight
But 800m flight visibility if speed is such to allow see and avoid.
Less than 800m may be permitted for special cases such as medical and rescue.
When should VFR flights be refused at a controlled aerodrome?
When the reported meteorological conditions (METAR) are below
5km ground visibility
1500ft ceiling
Except when SVFR
When the ceiling is less than 1500ft and/or the ground visibility is less than 5km, what can VFR flights not do?
Take off or land at an aerodrome within a CTR
Enter the ATZ or aerodrome traffic circuit
Unless Special VFR
When is VFR at night permitted?
CAA Permission
Flight Plan when leaving vicinity
Radio Comms maintained with ATS when available
What are VMC at night?
As per day, except
Minimum cloud ceiling 1500ft
Minimum 5km Visibilty
Maintain continuous sight of surface when below 3000ft or 1000ft above terrain, whichever is higher
What are the minimum altitudes for night VFR?
Over high/mountainous terrain
2000ft above the highest obstacle within 8km
Elsewhere, 1000ft above the highest obstacle within 8km
What are the max height and max speed restrictions attached to VFR?
Unless authorised, VFR flights shall not operate above FL195 or at transonic or supersonic speeds