TYPES OF AIRSPACE
DEFINITIONS
REFER: FLIP I
Aerodrome traffic zone (ATZ) : An airspace of defined
dimensions established around an aerodrome for the
protection of aerodrome traffic.
Control Zone : A controlled airspace extending upwards from
the surface ofthe earth to a specified upper limit.
Control Area :A controlled airspace extending upwards from
a specified limit above the earth.
CLASS A
Applicable to designated airspaces in terminal
control area, control area and control zone. IFR
flights only are permitted, all flights are provided
with air traffic control service and are separated
from each other.
CLASS A
•
IFR flights only
• Separation between all aircraft provided
• Air traffic control service provided
• Speed limitation not applicable
• Continuous two-way
Yes
CLASS B
Applicable to designated airspaces in terminal
control area, control area and control zone. IFR
and VFR flights are permitted, all flights are
provided with air traffic control service and are
separated from each other.
CLASS B
• IFR and VFR flights
• All aircraft
• Air traffic control service
• Speed limitation not applicable
• Continuous two-way :Yes
CLASS C
Designated airspace within controlled airspace is
classified as Class C. IFR and VFR flights are
permitted, all flights are provided with air traffic
control service and IFR flights are separated from
other IFR flights and from VFR flights. VFR
flights are separated from IFR flights and receive
traffic information in respect of other VFR
flights.
CLASS C
IFR AND VFR FLIGHTS
IFR
• Separation - IFR from IFR, IFR from VFR
• Air traffic control service provided
• Speed limitation not applicable
• Continuous two-way
• ATC Clearance : Yes
CLASS C
IFR AND VFR FLIGHTS
VFR
• Separation – VFR from IFR
• Air traffic control service for separation from IFR
• VFR/VFR traffic information (and traffic avoidance
advice on request)
• Speed limitation : 250 kt IAS below 3050 m (10000 ft)
AMSL
• Continuous two-way
• ATC Clearance : Yes
CLASS D
Airspace within controlled airspace is classified
as Class D. IFR and VFR flights are permitted
and all flights are provided with air traffic control
service, IFR flights are separated from other IFR
flights and receive traffic information in respect
of VFR flights, VFR flights receive traffic
information in respect of all other flights.
CLASS D
IFR AND VFR FLIGHTS
IFR
• Separation - IFR from IFR
• Air traffic control service, traffic information about VFR
flights (and traffic avoidance advice on request)
• 250 kt IAS below 3050 m (1 000 ft) AMSL
• Continuous two-way
• ATC Clearance : Yes
CLASS D
IFR AND VFR FLIGHTS
VFR
• Separation - Nil
• IFR/VFR and VFR/VFR traffic information (and traffic
avoidance advice on request)
• 250 kt IAS below 3050 m (10000 ft) AMSL
• Continuous two-way
• ATC Clearance : Yes
CLASS E
Airspace within ATS Route segment outside
controlled airspace is classified as Class E. IFR
and VFR flights are permitted, IFR flights are
provided with air traffic control service and are
separated from other IFR flights. All flights
receive traffic information as far as is practical.
Class E shall not be used for control zones.
CLASS E
IFR AND VFR FLIGHTS
IFR
• Separation - IFR from IFR
• Air traffic control service and, as far as practical, traffic
information about VFR flights advice on request)
• 250 kt IAS below 3050 m (10000 ft) AMSL
• Continuous two-way
• ATC Clearance : Yes
CLASS E
IFR AND VFR FLIGHTS
VFR
• Separation - Nil
• Traffic information as far as practical
• 250 kt IAS below 3050 m (10000 ft) AMSL
• R/T – NO
• ATC Clearance : Yes
CLASS F
Designated Airspace within ATS Route segment
outside controlled airspace is classified as Class
F. IFR and VFR flights are permitted, all
participating IFR flights receive an air traffic
advisory service and all flights receive flight
information service if requested.
.
CLASS F
IFR AND VFR FLIGHTS
IFR
• Separation - IFR from IFR
• Air Traffic Advisory Service; Flight Information Service
• 250 kt IAS below 3050 m (10000 ft) AMSL
• Continuous two-way R/T
• ATC Clearance : No
CLASS F
IFR AND VFR FLIGHTS
VFR
• Separation - Nil
• Flight Information Service
• 250 kt IAS below 3050 m (10000 ft) AMSL
• R/T - No
• ATC Clearance : No
CLASS G
Airspace outside ATS route segment and outside
controlled airspace is classified as Class G. IFR
and VFR flights are permitted and receive flight
information service if requested.
CLASS G
IFR AND VFR FLIGHTS
IFR
• Separation - Nil
• Flight Information Service
• 250 kt IAS below 3050 m (10000 ft) AMSL
• Continuous two-way R/T
• ATC Clearance : No
CLASS G
IFR AND VFR FLIGHTS
VFR
• Separation - Nil
• Flight Information Service
• 250 kt IAS below 3050 m (10000 ft) AMSL
• R/T - No
• ATC Clearance : No
PROHIBITED AREA
An airspace of defined dimensions above the land areas or
territorial waters of India within which the flights are not
permitted at any time under any circumstances. Such areas are
designated as Prohibited Areas and are identified by the letter
(P) preceded by two letter designator of FIR in which the area
exists followed by a number e.g. VA(P)-2, indicates Prohibited
Area No. 2 in Mumbai FIR
RESTRICTED AREA
An airspace of defined dimensions above the land areas or
territorial waters of India within which the flight of aircraft is
restricted. Restricted areas are marked on navigation Charts
and are identified by the letter (R) preceded by two letter
designator of the concerned FIR followed by a number e.g.
VO(R)-81, i.e. Restricted Area No. 81 in Chennai FIR.
TEMPORARY
SEGREGATED AREA (TSA)
An airspace temporarily reserved and allocated for the
exclusive use of a specific user during a determined period,
through which no other flights may pass. TSA can be
considered as the flexible equivalent of Danger Area.
TEMPORARY RESEREVED
AREA (TRA)
An airspace temporarily reserved and allocated for the specific
use of a particular user during a determined period, through
which other flights may pass with permission from Controlling
Authority. TRA can be considered as the flexible equivalent of
Restricted Area.