Class A. IFR flights only are permitted. All flights are provided with air traffic control service and are separated from each other. Continuous air- ground voice communications are required for all flights. All flights shall be subject to ATC clearance.
Class B. IFR and VFR flights are permitted. All flights are provided with air traffic control service and are separated from each other. Continuous air- ground voice communications are required for all flights. All flights shall be subject to ATC clearance.
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 and traffic avoidance advice on request. Continuous air-ground voice communications are required for all flights. For VFR flights a speed limitation of 250 KIAS applies below 3 050 M (10 000 FT) AMSL, except where approved by the authority for aircraft types, which for technical or safety reasons, cannot maintain this speed. All flights shall be subject to ATC clearance.
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, receive traffic information in respect of VFR flights and traffic avoidance advice on request. VFR flights receive traffic information in respect of all other flights and traffic avoidance advice on request. Continuous air-ground voice communications are required for all flights and a speed limitation of 250 KIAS applies to all flights below 3 050 M (10 000 FT) AMSL, except where approved by the authority for aircraft types, which for technical or safety reasons, cannot maintain this speed. All flights shall be subject to ATC clearance.
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. Continuous air ground voice communications are required for IFR flights. A speed limitation of 250 KIAS applies to all flights below 3 050 M (10 000 FT) AMSL, except where approved by the authority for aircraft types, which for technical or safety reasons cannot maintain this speed. All IFR flights shall be subject to ATC clearance. Class E shall not be used for control zones.
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. Continuous air-ground voice communications are required for IFR flights participating in the advisory service and all IFR flights shall be capable of establishing air-ground voice communications. A speed limitation of 250 KIAS applies to all flights below 3 050 M (10 000 FT) AMSL, except where approved by the authority for aircraft types, which for technical or safety reasons cannot maintain this speed. ATC clearance is not required.
Class G. IFR and VFR flights are permitted and receive flight information service if requested. All IFR flights shall be capable of establishing air- ground voice communications. A speed limitation of 250 KIAS applies to all flights below 3 050 M (10 000 FT) AMSL, except where approved by the authority for aircraft types, which for technical or safety reasons cannot maintain this speed. ATC clearance is not required.
| Class | Type of flight | Separation provided | Service provided | VMC visibility and distance from cloud minima | Speed limitation (1) | Radio communication requirement | Subject to an ATC clearance |
|---|---|---|---|---|---|---|---|
| A | IFR only | All aircraft | Air traffic control services | Not applicable | Not applicable | Continuous two-way | Yes |
| B(∗) | IFR | All aircraft | Air traffic control services | Not applicable | Not applicable | Continuous two-way | Yes |
| VFR | All aircraft | Air traffic control services | 8 KM at and above 3 050 M (10 000 FT) AMSL 5 KM below 3 050 M (10 000FT) AMSL Distance from cloud: 1 500 M horizontally 300 M (1000 FT) vertically | Not applicable | Yes | Yes | |
| C | IFR | IFR from IFR IFR from VFR | Air traffic control services | Not applicable | Not applicable | Continuous two-way | Yes |
| VFR | VFR from IFR |
| 8 KM at and above 3 050 M (10 000 FT) AMSL 5 KM below 3 050 M (10 000 FT) AMSL Distance from cloud: 1 500 M horizontally 300 M (1000 FT) vertically | 250 KIAS below 3 050 M (10 000 FT) AMSL | Continuous two-way | Yes | |
| D | IFR | IFR from IFR | Air traffic control service traffic information about VFR flights (and traffic avoidance advice on request) | Not applicable | 250 KIAS below 3 050 M (10 000 FT) AMSL | Continuous two-way | Yes |
| VFR | Nil | Air traffic control service, IFR/VFR and VFR/VFR traffic information (and traffic avoidance advice on request) | 8 KM at and above 3 050 M (10 000 FT) AMSL 5 KM below 3 050 M (10 000 FT) AMSL Distance from cloud: 1 500 M horizontally 300 M (1000 FT) vertically | 250 KIAS below 3 050 M (10 000 FT) AMSL | Continuous two-way | Yes | |
| E(∗) | IFR | IFR from IFR | Air traffic control service and, as far as practical, traffic information about VFR flights | Not applicable | 250 KIAS below 3 050 M (10 000 FT) AMSL | Continuous two-way | Yes |
| VFR | Nil | Traffic information as far as practical | 8 KM at and above 3 050 M (10 000 FT) AMSL 5 KM below 3 050 M (10 000 FT) AMSL Distance from cloud: 1 500 M horizontally 300 M (1000 FT) vertically | 250 KIAS below 3 050 M (10 000 FT) AMSL | No (2) | No | |
| F(∗) | IFR | IFR from IFR as far as practical | Air traffic advisory service; flight information service If requested | Not applicable | 250 KIAS below 3 050 M (10 000 FT) AMSL | Continuous two-way | No |
| VFR | Nil | Flight information service If requested | 8 KM at and above 3 050 M (10 000 FT) AMSL 5KM below 3 050 M (10 000 FT) AMSL 1 500 M horizontal; 300 M vertical distance from cloud At and below 900 M AMSL or 300 M above terrain whichever is higher – 5 KM(∗∗∗), clear of cloud with the surface in sight | 250 KIAS below 3 050 M (10 000 FT) AMSL | No (2) | No | |
| G(∗∗) | IFR | Nil | Flight information service if requested | Not applicable | 250 KIAS below 3 050 M (10 000 FT) AMSL | Yes (2) | No |
| VFR | Nil | Flight information service if requested | 8 KM at and above 3 050 M (10 000 FT) AMSL 5 KM below 3 050 M (10 000 FT) AMSL 1 500 M horizontal; 300 M vertical distance from cloud At and below 900 M AMSL or 300 M above terrain whichever is higher – 5 KM(∗∗∗), clear of cloud the surface in sight | 250 KIAS below 3 050 M (10 000 FT) AMSL | Yes (2) | No | |
(∗) Classes of airspace not used in Doha FIR. (∗∗) Airspaces within Doha FIR other than Class A, C and D. (∗∗∗) When so prescribed by the authority: | |||||||
a. flight visibilities reduced to not less than 1 500 M may be permitted for flights operating:
b. helicopters may be permitted to operate in less than 1 500 M, but not less than 800 M flight visibility, if manoeuvred at a speed that will give adequate opportunity to observe other traffic or any obstacles in time to avoid collision. | |||||||
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