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Tables of Cruising Levels

ENR 1.7 ALTIMETER SETTING PROCEDURES

1.7.1 Introduction

1. Information on altimeter setting (QNH or QFE on request) and on transition level will be given by the appropriate ATS unit.

2. Transition altitudes for the Bulgarian aerodromes are given in part AD under the appropriate aerodrome.

3. Altimeter settings provided shall be rounded down to the nearest lower whole hectopascal (hPa).

1.7.2 Basic altimeter setting procedures

1. Expression of vertical position of aircraft in the vicinity of the aerodrome and within terminal control area.

Prior to take-off the altimeter of the aircraft shall be set to the current QNH value for the aerodrome.

1.1 For flight in the vicinity of the aerodrome the vertical position of aircraft shall be expressed in terms of:

a) altitudes - at or below the transition altitude;

b) flight levels at or above the transition level.

1.2 After passing the transition altitude, aircraft during climb shall change the altimeter setting to 1013,2 hPa, and thereafter the vertical position of the aircraft shall be expressed in terms of flight levels.

1.3 After passing the transition level aircraft during descent shall change the altimeter setting to the current QNH value for the aerodrome and thereafter the vertical position of the aircraft shall be expressed in terms of altitude.

1.4 An aircraft which is number one to land and which on request has received the QFE value for the aerodrome reference point, or the QFE value relating to the runway threshold, shall express the vertical position in terms of height above the aerodrome reference point, respectively in terms of height above the runway threshold.

2. For flight en route the vertical position of aircraft shall be expressed in terms of:

a) flight levels at or above the lowest usable flight

level;

b) altitudes below the lowest usable flight level.

3. Provision of information

3.1 The transition level shall be included in approach clearance or requested by the pilot.

3.2 A QNH information shall be included in approach clearances or clearances to enter the traffic circuit, and in taxi clearances for departing aircraft, except when it is known that the aircraft has already received this information.

1.7.3 Table of cruising levels

The cruising levels to be observed when so required are as follows:

Table of 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*

NR

m

ft

NR

m

ft

NR

m

ft

NR

m

ft

10

300

1000

-

-

-

20

600

2000

-

-

-

30

900

3000

35

1050

3500

40

1200

4000

45

1350

4500

50

1500

5000

55

1700

5500

60

1850

6000

65

2000

6500

70

2150

7000

75

2300

7500

80

2450

8000

85

2600

8500

90

2750

9000

95

2900

9500

100

3050

10000

105

3200

10500

110

3350

11000

115

3500

11500

120

3650

12000

125

3800

12500

130

3950

13000

135

4100

13500

140

4250

14000

145

4400

14500

150

4550

15000

155

4700

15500

160

4900

16000

165

5050

16500

170

5200

17000

175

5350

17500

180

5500

18000

185

5650

18500

190

5800

19000

195

5950

19500

200

6100

20000

 

 

 

210

6400

21000

 

 

 

220

6700

22000

 

 

 

230

7000

23000

 

 

 

240

7300

24000

 

 

 

250

7600

25000

 

 

 

260

7900

26000

 

 

 

270

8250

27000

 

 

 

280

8550

28000

 

 

 

290

8850

29000

 

 

 

300

9150

30000

 

 

 

310

9450

31000

 

 

 

320

9750

32000

 

 

 

330

10050

33000

 

 

 

340

10350

34000

 

 

 

350

10650

35000

 

 

 

360

10950

36000

 

 

 

370

11300

37000

 

 

 

380

11600

38000

 

 

 

390

11900

39000

 

 

 

400

12200

40000

 

 

 

410

12500

41000

 

 

 

430

13100

43000

 

 

 

450

13700

45000

 

 

 

470

14350

47000

 

 

 

490

14950

49000

 

 

 

510

15550

51000

 

 

 

Etc.

Etc.

Etc.

 

 

 

Etc.

Etc.

Etc.

 

 

 

Remarks:

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 the altimeter is set to QFE, it reads the height over the point with this pressure.

* When altimeter is set to 1013,25 hPa, it reads the flight level.