Page 15 - Beginner's Guide to Aviation

But why do we need to understand the different flight rules that operate in airspaces? Well, that is because flights operating under different flight rules receive different services in different airspace classifications and designations.
Airspaces are designated as either controlled or uncontrolled airspaces. Both designations have defined dimensions.
Class
Type of flight
Seperation provided
Service provided
Radio communication required
A IFR ALL
B IFR ALL
VFR ALL
• Air Traffic Control Service
• Air Traffic Control Service
• Air Traffic Control Service
Continuous two-way
Continuous two-way
Continuous two-way
C
IFR
IFR & IFR IFR & VFR
• Air Traffic Control Service
Continuous two-way
VFR
IFR & VFR
• Air Traffic Control Service - for separation from IFR
• Traffic information on VFR/VFR flights (and traffic avoidance advice on request)
Continuous two-way
D
IFR
IFR & IFR
• Air Traffic Control Service
• Traffic information about VFR flights (and traffic
avoidance advice on request)
Continuous two-way
VFR
-
• Traffic information about IFR/VFR and VFR/VFR flights (and traffic avoidance advice on request)
Continuous two-way
E
IFR
IFR & IFR
• Air traffic control service
• Traffic information about VFR flights (as far as
practical)
Continuous two-way
VFR
-
• Traffic information (as far as practical)
NO