Aircraft shall be equipped with suitable instruments and with navigation equipment appropriate to the route to be flown.
Except when necessary for take - off or landing except when specifically authorized by the appropriate authority, an IFR flight shall be flown at a level which is not below the minimum flight altitude established by the State whose territory is overflown or, where no such minimum flight altitude has been established:
over high terrain or in mountainous areas, at a level which is at least 2000 FT (600 M) above the highest obstacle located within 8 KM of the estimated position of the aircraft;
elsewhere than as specified in a), at a level which is at least 1000 FT (300 M) above the highest obstacles located within 8 KM of the estimated position of the aircraft.
Note: The estimated position of the aircraft will take account of the navigational accuracy which can be achieved on the relevant route segment, having regard to the navigational facilities available on the ground and in the aircraft.
the tables of cruising levels in Appendix 3 of Annex 2 or,
a modified table of cruising levels, when so prescribed in accordance with Appendix 3 of Annex 2 for flights above FL 410.
Except that the correlation of levels to track prescribed therein shall not apply whenever otherwise indicated in air traffic control clearance or specified by the appropriate ATS authority in the Aeronautical Information Publication.
For cruising levels within the BAHRAIN FIR / BAHRAIN UIR see ENR 1.3.3.1.
In accordance with ICAO DOC 4444 PARA 5.4.2.2.1.1 C. Within the AMMAN FIR, BAHRAIN FIR / BAHRAIN UIR, DAMASCUS FIR, JEDDAH FIR and NICOSIA FIR / NICOSIA UIR, a minimum of five minutes longitudinal separation will be applied when the leading aircraft is maintaining a TAS of 20 KTs or more faster than the following aircraft.
The application of this separation minimum may require ATC to impose speed restrictions on aircraft. When subject to speed restrictions, pilots must notify ATC immediately if at any time they are unable to comply with the restrictions.
Pilots should note that speed restrictions applied in one FIR will continue to apply in succeeding FIRs unless specifically cancelled by ATC.
An IFR flight operating in level cruising flight outside if controlled airspace shall be flown at a cruising level appropriate to its track as specified in:
the tables of cruising levels in Appendix 3 of Annex 2, except when otherwise specified by the appropriate ATS authority for flight at or below 3000 FT (900 M) above mean sea level; or
a modified table of cruising levels, when so prescribed in accordance with Appendix 3 of Annex 2 for flight above FL 410. (Not used at the present in the BAHRAIN UIR)
Note: This provision does not preclude the use of cruise climb techniques by aircraft in supersonic flight.
An IFR flight operating outside controlled airspace but within or into areas, or along routes, designated by the appropriate ATS authority in accordance with 3.3.1.2 c) or d) of Annex 2 shall maintain a listening watch on the appropriate radio frequency and established two - way communication, as necessary, with the air traffic services unit providing flight information services.
An IFR flight operating outside controlled airspace and required by the appropriate ATS authority to:
submit a flight plan,
maintain a listening watch on the appropriate radio frequency and establish two - way communication, as necessary, with the air traffic services unit providing flight information service, shall report position as specified in 3.6.3 of Annex 2 for controlled flights.
Note: Aircraft electing to use the air traffic advisory service whilst operating IFR within specified advisory airspace are expected to comply with the provisions of 3.6 of Annex 2, except that the flight plan and changes thereto are not subjected to clearance and that two - way communication will be maintained with the unit providing the air traffic advisory service. There is no Advisory Airspace currently designated within the BAHRAIN FIR / BAHRAIN UIR.
A system use accuracy equal to, or better than, (2.5 NM) for one standard deviation, with a 95 % containment value of plus or minus 5 NM, thereby meeting the accuracy requirements for RNAV 5; and
A system use accuracy equal to, or better than, (0.5 NM) for one standard deviation, with a 95 % containment value of plus or minus 1 NM, thereby meeting the accuracy requirements for RNAV 1; and
An average continuity of service of 99.99 % of flight time.
Area Navigation "RNAV" will be implemented within BAHRAIN FIR / BAHRAIN UIR within designated airspace on area basis as follows:
All Lower Routes of Bahrain within TMAs are RNAV 1 with requirements.
RNAV 5 will be implemented from TMA levels to FL 145. At Upper Routes RNAV 1 will be implemented from FL 150 to FL 460 within TMAs.
Conformance to the navigation requirement shall be verified by the State of Registry or the State of Operator as appropriate.
Note: Guidance material concerning navigation accuracy requirements is contained in the Manual on Required Navigation performance (RNP) Doc 9613, Chapter 5.
Operators of aircraft fitted with RNAV having a navigation accuracy meeting RNAV 5 shall insert the designator "R" in item 10 of the flight plan.
The routing is in accordance with the clearance; and
The aircraft navigation accuracy meets RNAV 5.
Computer - assisted coordination of estimate messages. In the case of automated messages not containing the information provided in item 18 of the flight plan, the sending air traffic control unit shall inform the receiving air traffic control unit by supplementing the ATC message verbally with the phrase "RNAV OUT OF SERVICE" after the call sign of the aircraft concerned.
Verbal coordination of estimate messages. When a verbal coordination process is being used, the sending air traffic control unit shall include the phrase "RNAV OUT OF SERVICE" at the end of the message.
The phrase "UNABLE RNAV DUE EQUIPMENT" shall be included by the pilot immediately following the aircraft call sign whenever initial contact on an air traffic control frequency is established.
1.3.4.6.1.2.1 All military formation flights are considered NON-RVSM within Bahrain UIR, Regardless of the RVSM status of individual Aircraft in the formation. These Aircraft’s shall not be permitted in RVSM Airspace except in exceptional circumstances. These exceptions may be accommodated, subject to prior approval, on a workload or traffic-permitting basis.
Computer - assisted coordination of estimate messages. In case of automated messages not containing the information provided in item 18 of the flight plan, the sending air traffic control unit shall inform the receiving air traffic control unit by supplementing the ATC message verbally with the phrase "NEGATIVE RNAV" after the call sign of the aircraft concerned.
Verbal coordination of estimate messages. When a verbal coordination process is being used, the sending air traffic control unit shall include the phrase "NEGATIVE RNAV" at the end of the message.
The phrase "NEGATIVE RNAV" shall be included by the pilot immediately following the aircraft call sign whenever initial contact on an air traffic control frequencies established.
RNAV 5 defines RNAV operations which satisfy a required track keeping accuracy of plus or minus 5 NM for at least 95 % of the flight time in accordance with the requirements set out in ICAO Document 7030 - Regional Supplementary Procedures for the Middle East region, as amended, and ICAO Document 9613 - Manual on RNP.
RNAV equipped aircraft operating on designated RNAV 5 routes in designated RNAV 5 routes airspace must be certified for RNAV 5 operations by the State of Operator or the State of Registry of the aircraft. Conformance to the navigation requirement shall be verified by the State of Registry or the State of Operator, as appropriate.
Foreign air carriers operating within BAHRAIN UIR shall ensure their operations specifications are updated to reflect RNAV 5 approvals.
The address for information regarding RNAV 5 certification is:
Aviation Safety Section
Air Transport Directorate
Civil Aviation Affairs
P.O. Box 586
Kingdom of Bahrain
Tel:+973 17321006
Fax:+973 17321061
SITA:BAHAPYF
In general, a formation flight shall operate as a single aircraft in regard to navigation and position reporting and clearances issued by ATC.Sufficient safety distance between the aircraft comprising a formation flight shall be the responsibility of the formation leader and the individual pilots-in-command at all phases of the flight, which includes take-off and landing, join-up, break-up and all parts of the Enroute flight.Upon each initial report on a new radio frequency, the formation leader shall indicate to ATC that the flight is a formation, including standard or non- standard formation type and the number of aircraft the formation flight consists of. (E.g. Callsign/ Standard Formation Flight of 4).
In a standard military formation, each aircraft/element of this formation shall remain within 1 NM horizontally and 100 ft. vertically from the formation leader.Only the lead aircraft (formation leader) shall squawk as directed by ATC.
Aircraft/elements of a formation flight that are outside the horizontal and/or vertical limits as described in 1.3.4.9.2 are considered a non-standard formation.Only the lead aircraft (formation leader) shall squawk unless otherwise directed by ATC.
Non-standard Formation flights represent an unusual aerial activity. It is an ATC decision to approve or disapprove a non-standard formation and to determine special conditions for the conduct of a non-standard formation flight.