Law 12 Flight Rules Flashcards
What is the definition of night?
Hours between end of evening civil twilight and the beginning of morning civil twilight.
What is civil twilight?
When the suns disk is 6 degrees below the horizon
What would you take into consideration when deciding on flight rules?
Airspace type
Weather
Pilot qualifications
Who is responsible for determining if VMC permits VFR?
The pilot
When is the ground Vis used when deciding If A/C can go VFR and who determines the ground vis?
When an A/C is to or from and AD or entering ATZ or traffic circuit in CAS.
ATC determine ground vis
What is VMC minima in the day above 10000ft AMSL and in what airspace does it apply.
All airspace
8km flight vis
1500m horizontally and 1000ft vertically from cloud
What is the VMC minima for flights above 3000ft but below 10000ft (or 1000ft above terrain)?
In all airspace, 5km flight vis
1500m horizontally and 1000ft vertically from cloud.
What is the VMC minima during the day below 3000ft?
In class A-E 5km flight vis 1500m horizontally and 1000ft vertically from cloud.
In F and G 5km flight vis. Clear of cloud with the surface in sight.
In F and G is A/C speed is less than 140kt IAS for fixed wing vis can be reduced to 1500m and for helicopters 800m.
What is VFR refusal and when is it done?
A/c shall not take off or land at AD within a CTR, enter ATZ or the AD traffic Circuit when the reported met conditions at AD show cloud ceiling at less than 1500ft and/or ground vis less than 5km
What conditions must be met before VFR is allowed at night?
Flight plan filed if leaving vicinity of AD
Radio comms
Ceiling not less than 1500ft
Min vis 5km (heli 3km if in sight of surface)
In sight of surface when less than 3000ft (or greater than 1000ft above terrain)
Who does VMC minima not apply to?
SAR A/C
Where is VFR not allowed?
Above FL195
Transonic or supersonic speeds
Unless authorised
When must you fly IFR?
Class A
Met precludes VFR
If switching from VFR to IFR what must you do?
If FPL submitted communicate the change
Submit FPL to appropriate ATSU As soon as practicable
Obtain clearance when in controlled airspace
When switching from IFR to VFR what must you do?
Cancel IFR plan
Can only be done at pilots request
