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CROATIA (LD) Division Flight Procedures

Version 3, Revised 17 August 2017

General

 

General level of compliance with ICAO SARPs

In general, Croatia is in compliance with ICAO Standards and Recommended Practices.

 

Units Of Measurment

MEASUREMENT OF UNIT
Distance used in navigation, position reporting, etc. Nautical Miles and tenths
Relatively short distances such as those related to aerodromes (e.g. runway lengths) Meters
Altitude, elevations and heights Feet
Horizontal speed Knots
Vertical speed Feet Per Minute
Wind speed Knots
Wind direction for landing and taking off Degrees Magnetic
Wind direction except for landing and taking off Degrees True
Visibility including RVR Kilometers, Meters
Altimeter setting, atmospheric pressure Hectopascals
Temperature Degrees Celsius
Weight Kilograms, MetricTons
Time Hours and minutes, the day of 24 hours beginning at midnight UTC.
 

Airports of Entry

Following airports should be used as port of entry into Croatia

      • Zagreb (LDZA)
      • Split (LDSP)
      • Dubrovnik (LDDU)
      • Pula (LDPL)
      • Zadar (LDZD)
      • Osijek (LDOS)
      • Rijeka (LDRI)
      • Lošinj (LDLO)
      • Brač (LDSB)

 

Controlled airspace and ATC

 

ICAO ATS Airspace Classifications

The airspace within the Zagreb FIR is divided into 3 classifications: C, D and G, according the ICAO ATS airspace classification (Annex 11). 

 
CTA ZAGREB - Zagreb Radar (LDZO_CTR)

CTA ZAGREB covers the airspace within the following limits: 

  • Upper limit: FL 660
  • Lower limit: 1000 FT AGL

CLASS OF AIRSPACE OUTSIDE OTHER REGULATED AIRSPACE:

  • C - above FL 115
  • D - Between FL 115 and 1000 ft AGL
  • G (with exemption of CTRs)

UNCONTROLLED AIRSPACE covers the airspace within the following limits:

  • Above FL660 - unclassified
  • Upper limit: 1000 FT AGL / Lower limit: GND - Class G
ZAGREB TMA - Zagreb Radar (LDZA_APP)

Class of airspace: C

  • Upper limit: FL 205
  • Lower limit: 1000 FT AGL
SPLIT TMA - Split Radar (LDSP_APP)

Class of airspace: C

  • Upper limit: FL 205
  • Lower limit: 7500 FT MSL

Class of airspace: D

  • Upper limit: 7500 FT MSL
  • Lower limit: 1000 FT AGL
PULA TMA - Pula Radar (LDPL_APP)

Class of airspace: C

  • Upper limit: FL 135
  • Lower limit: 7500 FT MSL

Class of airspace: D

  • Upper limit: 7500 FT MSL
  • Lower limit: 1000 FT AGL
DUBROVNIK TMA - Dubrovnik Radar (LDDU_APP)

Class of airspace: C

  • Upper limit: FL 205
  • Lower limit: 7500 FT MSL

Class of airspace: D

  • Upper limit: 7500 FT MSL
  • Lower limit: 1000 FT AGL
ZADAR TMA - Zadar Radar (LDZD_APP)

Class of airspace: C

  • Upper limit: FL 155
  • Lower limit: 7500 FT MSL

Class of airspace: D

  • Upper limit: 7500 FT MSL
  • Lower limit: 1000 FT AGL
OSIJEK TMA - Osijek Approach (LDOS_APP)

Class of airspace: D

  • Upper limit: FL 115
  • Lower limit: 1000 FT AGL

 

Class C

IFR and VFR flights are permitted. All flights are provided with an air traffic control service and IFR flights are separated from other IFR 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

Class D – in all CTRs

IFR and VFR flights are permitted. All flights are provided by air traffic control service. IFR flights are separated from other IFR flights and 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

Class G

IFR and VFR flights are permitted and receive flight information service if requested

 

Reduced vertical separation minima (RVSM) airspace

The airspace within the Zagreb FIR between FL 290 and FL 410 inclusive is RVSM airspace.

Within RVSM airspace the vertical separation minimum shall be:

      1. 1000 ft between:
        • RVSM approved aircraft.
      2. 2000 ft between:
        • non-RVSM approved aircraft and any other aircraft.
        • an aircraft experiencing a communication failure.

For RVSM cruising flight levels see Table Cruising levels.

 

Minimum horizontal radar separation

Minimum horizontal radar separation is 5 NM.

 

Flight level restrictions

The airspace above FL 660 is an unclassified, uncontrolled airspace.

 

Speed restrictions

Speed limit below FL 100 (or 10,000 ft by QNH) – 250 knots IAS, unless authorized to do so in an air traffic control clearance.

 

Additional information

TRANSITION ALTITUDE for all airports in Zagreb FIR is the same and it is 9500 ft (2900 m).

TRANSITION LEVEL is provided by approach control and it is calculated according to the following table:

Transition Level by QNH
QNH (hPa) 960-977 978-995 996-1013 1014-1031 >1032
TRANSITION LEVEL FL 120 FL 115 FL 110 FL 105 FL 100
 

QNH for arriving traffic will be given by approach ATC together with the first clearance for descent below transition level.

QNH for departing traffic will be given by tower controller usually with start up clearance, and latest with taxi clearance.

 

General flight procedures

 

The holding, approach and departure procedures in use are based on those contained in the latest edition of ICAO Doc 8168 - Procedures for Air Navigation Services - Aircraft Operations (PANS-OPS).

The holding and approach procedures in use have been based on the values and factors contained in Parts III and IV of Vol. I of the PANS-OPS.

 

Visual flight rules VFR

 

Restrictions

An aircraft operating VFR shall not land or take off at an aerodrome within a control zone or enter the aerodrome traffic pattern when:

      1. the ceiling is less than 1500 ft (450 m), or
      2. the ground visibility is less than 5 km (exception shall be permitted for aircraft operating a Special VFR flight).

VFR flights are allowed only when the flight visibility is greater than 5 km below 10,000 ft by QNH (or FL 100) or 8 km above 10,000 ft by QNH (or FL 100).

VFR flights are allowed only when the distance from cloud is 1500 m horizontally and 1000 ft vertically.

 

Cruising Altitudes and Flight Levels

VFR flight shall not be flown at a height less than 500 ft above the ground or water overhead unpopulated areas, and not less than 1000 ft AGL overhead populated areas within a radius of 600 m.

VFR flight shall be conducted at VFR flight levels.

For cruising VFR flight levels see Table 3. Cruising levels.

 

Change from VFR to IFR

In case of no VMC and when the Special VFR is not possible the pilot must inform ATC and request a clearance to continue his/her flight according to IFR.

When item 8 (Flight Rules) is Z (VFR changing to IFR), then in item 15 (Route) you must specify from what point the flight will become IFR, as well as the speed and the planned level.

Example: PALEZ/N0230F140 IFR L862 OKLAX

This means the flight will depart under VFR and remain VFR until PALEZ, after PALEZ the flight will continue at a speed 230 knots at FL 140, IFR.

 

VFR squawk codes

All VFR traffic will be assigned a squawk code by ATC on initial contact.

(In case of no active ATC, all pilots should use standard VFR code – 7000)

 

Special VFR

Special VFR flights shall be operated only within control zones when::

      1. the ground visibility is at least 1500 m;
      2. an ATC clearance for a Special VFR flight as per item a) above, shall be issued at a request from the pilot of the aircraft.

Separation shall be provided between Special VFR flights and IFR flights, and all Special VFR flights.

 

* Additional information

All VFR traffic should report callsign, position, time of crossing and level on initial contact with active ATC.

 

Instrument flight rules IFR

 

Selection of flight level and cruising altitudes

An IFR flight shall be flown at a level which is not below the minimum established flight altitude or where no such minimum flight altitude has been established:

      1. over high terrain or in mountainous areas, at a level which is at least 2000 ft above the highest obstacle located within 8 km of the estimated position of the aircraft.
      2. elsewhere, at a level which is at least 1000 ft above the highest obstacle located within 8 km of the estimated position of the aircraft.

An IFR flight operating in level cruising flight outside of controlled airspace shall be at a cruising level appropriate to its track as specified in the table below:

Cruising levels

Magnetic Track
From 000° to 179° From 180° to 359°
IFR Flights VFR Flights IFR Flights VFR Flights
FL Altitude* FL Altitude* FL Altitude* FL Altitude*
010 1000 ft 020 2000 ft
030 3000 ft 035 3500 ft 040 4000 ft 045 4500 ft
050 5000 ft 055 5500 ft 060 6000 ft 065 6500 ft
070 7000 ft 075 7500 ft 080 8000 ft 085 8500 ft
090 9000 ft 095 9500 ft 100 10000 ft 105 10500 ft
110 11000 ft 115 11500 ft 120 12000 ft 125 12500 ft
130 13000 ft 135 13500 ft 140 14000 ft 145 14500 ft
150 15000 ft 155 15500 ft 160 16000 ft 165 16500 ft
170 17000 ft 175 17500 ft 180 18000 ft 185 18500 ft
190 19000 ft 195 19500 ft 200 20000 ft
210 21000 ft Not applicable 220 22000 ft Not applicable
230 23000 ft 240 24000 ft
250 25000 ft 260 26000 ft
270 27000 ft 280 28000 ft
290 29000 ft 300 30000 ft
310 31000 ft 320 32000 ft
330 33000 ft 340 34000 ft
350 35000 ft 360 36000 ft
370 37000 ft 380 38000 ft
390 39000 ft 400 40000 ft
410 41000 ft 430 43000 ft
450 45000 ft 470 37000 ft
490 49000 ft 510 51000 ft
Etc. Etc. Etc. Etc.
The highlighted cells include the flight levels and altitudes in the RVSM airspace.
*When the altimeter is set to QNH, it reads the altitude.
*When altimeter is set to 1013 hPa (STD), it reads the flight level.
 

Radar vectoring

IFR flights being radar vectored shall comply with the following procedures as required:

      1. Within IAA (Intermediate Approach Areas) aircraft will normally be vectored so as to intercept the final approach track at an angle up to 30°.
      2. Radar vectoring is considered to be terminated when:
        • the aircraft has reported being established on the final approach track, or
        • if radio communication failure occurs.

 

Use of GPS

GPS/GNSS procedures within Zagreb FIR exist and are in non-operational, trial phase. They shall not be used.

In case of non-RNAV equipped aircraft, VOR and/or NDB navigation is required.

 

Cruise climb techniques

When there are no specific instructions by ATC regarding the rate of climb, the pilot shall comply with the performance of the aircraft.

 

Check altitudes and climb gradients on SIDs

Except if otherwise instructed in air traffic control clearances, the pilot shall comply with the minimum climb gradients and altitudes, specified in the SID. When cleared to a level/altitude higher than specified in SID, follow the profile unless restrictions are cancelled by ATC.

 

Free route airspace (SEAFRA - South East Axis Free Route Airspace)

Cross-border FRA procedures are available H24 from FL 325 up to FL 660 in the airspace formed from airspaces of Zagreb FIR/UIR, Sarajevo FIR and Beograd FIR/UIR excluding areas where responsibility for the provision of ATS is delegated to ATS units other than Zagreb ACC or Beograd ATCC and including area where responsibility for the provision of ATS is delegated to Zagreb ACC (ref. ENR 2.1 and ENR 2.2 parts of relevant AIPs). 

Within SEAFRA aircraft operators will be able to plan user-preferred trajectories through the use of significant points published in relevant AIPs, sections ENR 4.1 Radio Navigation Aids - en-route and ENR 4.4 Name-code designators for significant points, and/or users’ defined waypoints in terms of LAT/LONG respectively. Segments between waypoints will be indicated by means of “DCT” instructions.

There is no limitation on the use of “DCT” within the SEAFRA. 

The planning of DCT segments closer than 2.5 NM of the SEAFRA boundary is not allowed.

Re-entry flights into SEAFRA are not allowed.

Overflying traffic should plan directly from SEAFRA horizontal entry point to SEAFRA horizontal exit point. Use of FRA intermediate points, published or unpublished, is allowed.

Flights entering Beograd ATCC AoR or Zagreb ACC AoR below FL325 with a planned flight level change into SEAFRA as well as flights leaving SEAFRA descending below FL325 are eligible to do so via FRA intermediate point where the flight level change occurs if planned trajectory does not enter BHACC AoR.

Flights intending or need to fly through BHACC AoR (Bosnia-Herzegovina ACC Area of Responsibility) shall finish/start transition from SEAFRA to fixed route network environment or vice versa at points on BHACC AoR boundary.

Only fixed route network system shall be used for flights in the airspace volume under responsibility of BHACC.

 

Additional information

All IFR traffic should report position and altitude/FL on initial contact.

 

Change from IFR flight to VFR flight

An aircraft electing to change the conduct of its flight from compliance with the instrument flight rules to compliance with the visual flight rules shall, if a flight plan was submitted, notify the appropriate air traffic services unit specifically that the IFR flight is cancelled and communicate thereto the changes to be made to its current flight plan.

When item 8 (Flight Rules) is Y, then in item 15 (Route) you have to fill in after what point the flight becomes VFR.

Example: PALEZ L862 OKLAX VFR.

This means the flight will depart IFR and remain IFR until OKLAX, after OKLAX the flight will continue under VFR.

 

Special requirements and regulations

All VFR and IFR traffic must check for an active ATC position in the Croatian airspace before starting the engines. Taxi without any clearance is allowed only when there is no active ATC position for the relevant airport (like Tower or Approach) and when Zagreb Radar (LDZO_CTR) is not active.

Text using pilots must first execute and then readback the instructions.

The primary language for communication between pilot and ATC is English and the secondary is Croatian.

 

Differences from ICAO SARPs

See AIP Croatia GEN 1.7 (check under Charts section)