Air Ops Flashcards
What is the minimum safe FL?
The minimum FL above Safety Altitude or MSA. At least 1000ft above the TA.
Which control service is provided for en-route controlled flights?
Radar control
ATC service is provided to….
d) All flights:
IFR in ABCDE
Special VFR
At certain aerodromes
What is the angle/area of a straight departure?
15degrees either side
What does MOC stand for?
Minimum Obstacle Clearance
What is the recognised zone of flexibility either side of the sector boundary of a hold?
+/- 5 degrees
What is the Procedure Design Gradient (PDG) for terrain clearance on an instrument departure procedure?
0.8% safety margin added to climb gradient required to just clear the critical obstacle.
(Or standard 3.3%, whichever highest)
Describe the turn in the hold.
Rate 1 turn, 3 degrees per second, 25AoB
What approach generates the lowest noise?
Constant descent final approach
= constant angle glide slope and no power required to achieve landing config
What does PANS stand for?
Procedures for Air Navigation Services Ops
What does RNP indicate?
Accurate within 10nm at 95% certainty
20nm at 99.999%
What radii are fixed radius turns?
15nm below FL195
22.5nm above FL195
What are the 3 pillars of performance based navigation?
Infrastructure
Requirements
Application
How are compulsory reporting points pictured?
Solid triangles
Which PBN approaches are precision?
LPV only
What is RNav?
Fly desired route within coverage of reference nav aids. Waypoints based on lat long position.
What is the difference between RNav and RNP?
RNav does not require on board alerting system to signify lost performance
How is a fly over waypoint signified?
Hollow 4 corner star with a circle around it
How is RNP containment written?
Indicated by the number after eg RNP 10
How many satellites does RAIM FD require?
5
How many satellites does RAIM FDE require?
6