JEPPESEN GENERAL AIRWAY MANUAL (Issue Date 1 JUL 21) - page 21

(mps = 196.85 fpm)

MPS

FPM

MPS

FPM

3

591

3.5

689

4

787

4.5

885

5

984

5.5

1082

6

1181

6.5

1279

7

1378

7.5

1476

8

1575

8.5

1673

9

1772

9.5

1870

10

1969

10.5

2067

11

2165

11.5

2263

12

2362

12.5

2460

13

2559

13.5

2657

14

2756

14.5

2854

15

2953

15.5

3051

16

3150

16.5

3248

17

3346

17.5

3444

18

3543

18.5

3641

19

3740

19.5

3838

20

3937

 

 

METERS PER SECOND TO KNOTS

(1 mps = 1.9438 knots)

Meters p/sec.

Knots

Meters p/sec.

Knots

0

-

1

1.9

2

3.9

3

5.8

4

7.8

5

9.7

6

11.7

7

13.6

8

15.6

9

17.5

10

19.4

11

21.4

12

23.3

13

25.3

TABLES AND CODES - REFERENCE INFORMATION

641

REFERENCE TABLES

(1 mps = 1.9438 knots)

Meters p/sec.

Knots

Meters p/sec.

Knots

14

27.2

15

29.2

16

31.1

17

33.0

18

35.0

19

36.9

20

38.9

21

40.8

22

42.8

23

44.7

24

46.6

25

48.6

26

50.5

27

52.5

28

54.4

29

56.4

30

58.3

31

60.3

32

62.2

33

64.1

34

66.1

35

68.0

36

70

37

71.9

38

73.9

39

75.8

40

77.8

41

79.7

42

81.6

43

83.6

44

85.5

45

87.5

46

89.4

47

91.4

48

93.3

49

95.2

50

97.2

51

99.1

52

101.1

53

103.0

54

105.0

55

106.9

56

108.8

57

110.8

58

112.7

59

114.7

60

116.6

61

118.6

62

120.5

63

122.5

64

124.4

65

126.3

66

128.3

67

130.2

68

132.2

69

134.1

TABLES AND CODES - REFERENCE INFORMATION

642

REFERENCE TABLES

(1 mps = 1.9438 knots)

Meters p/sec.

Knots

Meters p/sec.

Knots

70

136.1

71

138.0

72

140.0

73

141.9

74

143.8

75

145.8

76

147.7

77

149.7

78

151.6

79

153.6

TEMPERATURES

(CELSIUS/FAHRENHEIT)

°C

°F

°C

°F

-40

-40.0

-39

-38.2

-38

-36.4

-37

-34.6

-36

-32.8

-35

-31.0

-34

-29.2

-33

-27.4

-32

-25.6

-31

-23.8

-30

-22.0

-29

-20.2

-28

-18.4

-27

-16.6

-26

-14.8

-25

-13.0

-24

-11.2

-23

-9.4

-22

-7.6

-21

-5.8

-20

-4.0

-19

-2.2

-18

-0.4

-17

1.4

-16

3.2

-15

5.0

-14

6.8

-13

8.6

-12

10.4

-11

12.2

-10

14.0

-9

15.8

-8

17.6

-7

19.4

-6

21.2

-5

23.0

-4

24.8

-3

26.6

-2

28.4

-1

30.2

TABLES AND CODES - REFERENCE INFORMATION

643

REFERENCE TABLES

(CELSIUS/FAHRENHEIT)

°C

°F

°C

°F

0

32.0

1

33.8

2

35.6

3

37.4

4

39.2

5

41.0

6

42.8

7

44.6

8

46.4

9

48.2

10

50.0

11

51.8

12

53.6

13

55.4

14

57.2

15

59.0

16

60.8

17

62.6

18

64.4

19

66.2

20

68.0

21

69.8

22

71.6

23

73.4

24

75.2

25

77.0

26

78.8

27

80.6

28

82.4

29

84.2

30

86.0

31

87.8

32

89.6

33

91.4

34

93.2

35

95.0

36

96.8

37

98.6

38

100.4

39

102.2

40

104.0

41

105.8

42

107.6

43

109.4

44

111.2

45

113.0

46

114.8

47

116.6

48

118.4

49

120.2

50

122.0

51

123.8

52

125.6

53

127.4

54

129.2

55

131.0

TABLES AND CODES - REFERENCE INFORMATION

644

REFERENCE TABLES

WEIGHT

Lbs

Kgs

Lbs

Kgs

2.2046

1

.45359

4

2

1

7

3

1

9

4

2

11

5

2

13

6

3

15

7

3

18

8

4

20

9

4

22

10

4

44

20

9

66

30

14

88

40

18

110

50

23

132

60

27

154

70

32

176

80

36

198

90

41

220

100

45

441

200

91

661

300

136

882

400

181

1102

500

227

1323

600

272

1543

700

318

1764

800

363

1984

900

408

2205

1000

454

TABLES AND CODES - REFERENCE INFORMATION

645

REFERENCE TABLES

DISTANCES

KILOMETERS

to SM

 

to NM

0.62137

1

0.53996

1.24

2

1.08

1.86

3

1.62

2.49

4

2.16

3.11

5

2.70

3.73

6

3.24

4.35

7

3.78

4.97

8

4.32

5.59

9

4.86

6.21

10

5.40

12.43

20

10.80

18.64

30

16.20

24.85

40

21.60

31.07

50

27.00

37.28

60

32.40

43.50

70

37.80

49.71

80

43.20

55.92

90

48.60

62.14

100

54.00

124.27

200

107.99

186.41

300

161.99

248.55

400

215.98

310.69

500

269.98

372.82

600

323.97

434.96

700

377.97

497.10

800

431.97

TABLES AND CODES - REFERENCE INFORMATION

646

REFERENCE TABLES

KILOMETERS

to SM

 

to NM

559.23

900

485.96

621.37

1000

539.96

STATUTE MILES

to KM

 

to NM

1.6093

1

0.86898

3.22

2

1.74

4.83

3

2.61

6.44

4

3.48

8.05

5

4.34

9.66

6

5.21

11.27

7

6.08

12.87

8

6.95

14.48

9

7.82

16.09

10

8.69

32.19

20

17.38

48.28

30

26.07

64.37

40

34.76

80.47

50

43.45

96.56

60

52.14

112.65

70

60.83

128.75

80

69.52

144.84

90

78.20

160.93

100

86.90

321.87

200

173.80

482.30

300

260.69

643.74

400

347.59

804.67

500

434.49

965.61

600

521.39

TABLES AND CODES - REFERENCE INFORMATION

647

REFERENCE TABLES

STATUTE MILES

to KM

 

to NM

1126.54

700

608.28

1287.48

800

695.18

1448.41

900

782.01

1609.34

1000

868.98

NAUTICAL MILES

to KM

 

to SM

1.8520

1

1.1508

3.70

2

2.30

5.56

3

3.45

7.41

4

4.60

9.26

5

5.75

11.11

6

6.90

12.96

7

8.06

14.82

8

9.21

16.67

9

10.36

18.52

10

11.51

37.04

20

23.02

55.56

30

34.52

74.08

40

46.03

92.60

50

57.54

111.12

60

69.05

129.64

70

80.56

148.16

80

92.06

166.68

90

103.57

185.20

100

115.08

370.40

200

230.16

555.60

300

345.23

740.80

400

460.31

TABLES AND CODES - REFERENCE INFORMATION

648

REFERENCE TABLES

NAUTICAL MILES

to KM

 

to SM

926.00

500

575.39

1111.20

600

690.47

1296.40

700

805.55

1481.60

800

920.62

1666.80

900

1035.70

1852.00

1000

1150.78

METERS to FEET

Meters

Ft

Meters

Ft

.3048

1

3.2808

1

2

7

1

3

10

1

4

13

2

5

16

2

6

20

2

7

23

2

8

26

3

9

30

3

10

33

6

20

66

9

30

98

12

40

131

15

50

164

18

60

197

21

70

230

24

80

262

27

90

295

30

100

328

TABLES AND CODES - REFERENCE INFORMATION

649

REFERENCE TABLES

METERS to FEET

Meters

Ft

Meters

Ft

61

200

656

91

300

984

122

400

1312

152

500

1640

183

600

1968

213

700

2296

244

800

2625

274

900

2953

305

1000

3281

METERS to YARDS

Meters

Yds

Meters

Yds

.9144

1

1.0936

2

2

2

3

3

3

4

4

4

5

5

5

5

6

7

6

7

8

7

8

9

8

9

10

9

10

11

18

20

22

27

30

33

36

40

44

46

50

55

55

60

66

64

70

77

TABLES AND CODES - REFERENCE INFORMATION

650

REFERENCE TABLES

METERS to YARDS

Meters

Yds

Meters

Yds

73

80

88

82

90

99

91

100

110

183

200

219

274

300

329

366

400

438

457

500

548

549

600

658

640

700

767

732

800

877

823

900

987

914

1000

1096

INCHES to MILLIMETERS (mm)

Inches

mm

Inches

mm

.03937

1

25.4

.07874

2

50.8

.11811

3

76.2

.15748

4

101.6

.19685

5

127.0

.23622

6

152.4

.27559

7

177.8

.31496

8

203.2

.35433

9

228.6

.3937

10

254.0

.7874

20

508.0

1.1811

30

762.0

1.5748

40

1016.0

TABLES AND CODES - REFERENCE INFORMATION

651

REFERENCE TABLES

INCHES to MILLIMETERS (mm)

Inches

mm

Inches

mm

1.9685

50

1270.0

2.3622

60

1524.0

2.7559

70

1778.0

3.1496

80

2032.0

3.5433

90

2286.0

3.9370

100

2540.0

7.8140

200

5080.0

11.8110

300

7620.0

15.7480

400

10160.0

19.6850

500

12700.0

23.6220

600

15240.0

27.5590

700

17780.0

31.4960

800

20320.0

35.4330

900

22860.0

39.3701

1000

25400.0

VOLUME

Imp Gal

U.S. Gal

Imp Gal

U.S. Gal

.83267

1

1.2010

2

2

2

2

3

4

3

4

5

4

5

6

5

6

7

6

7

8

7

8

10

7

9

11

8

10

12

TABLES AND CODES - REFERENCE INFORMATION

652

REFERENCE TABLES

Imp Gal

U.S. Gal

Imp Gal

U.S. Gal

17

20

24

25

30

36

33

40

48

42

50

60

50

60

72

58

70

84

67

80

96

75

90

108

83

100

120

167

200

240

250

300

360

333

400

480

416

500

600

500

600

721

583

700

841

666

800

961

750

900

1081

833

1000

1201

U.S. Gal

Liter

U.S. Gal

Liter

.26418

1

3.7853

1

2

8

1

3

11

1

4

15

1

5

19

2

6

23

2

7

26

2

8

30

2

9

34

TABLES AND CODES - REFERENCE INFORMATION

653

REFERENCE TABLES

U.S. Gal

Liter

U.S. Gal

Liter

3

10

38

5

20

76

8

30

114

11

40

151

13

50

189

16

60

227

18

70

265

21

80

303

24

90

341

26

100

378

53

200

757

79

300

1136

106

400

1514

132

500

1893

158

600

2271

185

700

2650

211

800

3028

238

900

3407

264

1000

3785

Imp Gal

Liter

Imp Gal

Liter

.21997

1

4.5460

.4

2

9

.7

3

14

.9

4

18

1

5

23

1

6

27

2

7

32

2

8

36

TABLES AND CODES - REFERENCE INFORMATION

654

REFERENCE TABLES

Imp Gal

Liter

Imp Gal

Liter

2

9

41

2

10

45

4

20

91

7

30

136

9

40

182

11

50

227

13

60

273

15

70

318

18

80

364

20

90

409

22

100

455

44

200

909

66

300

1364

88

400

1818

110

500

2273

132

600

2728

154

700

3182

176

800

3637

198

900

4091

220

1000

4546

OIL VOLUME/WEIGHT

(approximate according to Temp)

U.S. Gal

Lbs

U.S. Gal

Lbs

.13333

1

7.5000

.3

2

15

.4

3

22

.5

4

30

.7

5

38

TABLES AND CODES - REFERENCE INFORMATION

655

REFERENCE TABLES

OIL VOLUME/WEIGHT

(approximate according to Temp)

U.S. Gal

Lbs

U.S. Gal

Lbs

.8

6

45

.9

7

52

1.1

8

60

1.2

9

68

1.3

10

75

3

20

150

4

30

225

5

40

300

7

50

375

8

60

450

9

70

525

11

80

600

12

90

675

13

100

750

27

200

1500

40

300

2250

53

400

3000

67

500

3750

80

600

4500

93

700

5250

107

800

6000

120

900

6750

133

1000

7500

TABLES AND CODES - REFERENCE INFORMATION

656

REFERENCE TABLES

OIL VOLUME/WEIGHT

(approximate according to Temp)

Liter

Lbs

Liter

Lbs

.50471

1

1.9813

1.0

2

4

1.5

3

6

2.0

4

8

2.5

5

10

3.0

6

12

3.5

7

14

4.0

8

16

4.5

9

18

5.0

10

20

10

20

40

15

30

59

20

40

79

25

50

99

30

60

119

35

70

139

40

80

158

45

90

178

50

100

198

101

200

396

151

300

594

202

400

792

252

500

991

303

600

1189

353

700

1387

404

800

1585

TABLES AND CODES - REFERENCE INFORMATION

657

REFERENCE TABLES

OIL VOLUME/WEIGHT

(approximate according to Temp)

Liter

Lbs

Liter

Lbs

454

900

1783

505

1000

1981

OIL VOLUME/WEIGHT

(approximate according to Temp)

Liter

Kg

Liter

Kg

1.1127

1

.89871

2

2

2

3

3

3

4

4

4

6

5

5

7

6

5

8

7

6

9

8

7

10

9

8

11

10

9

22

20

18

33

30

27

44

40

36

56

50

45

67

60

54

78

70

63

89

80

72

100

90

81

111

100

90

222

200

180

334

300

270

TABLES AND CODES - REFERENCE INFORMATION

658

REFERENCE TABLES

OIL VOLUME/WEIGHT

(approximate according to Temp)

Liter

Kg

Liter

Kg

445

400

360

556

500

449

668

600

539

779

700

629

890

800

719

1001

900

809

1113

1000

899

TURBINE FUEL VOLUME/WEIGHT

(up to 5 pounds variation per 100 gallons due to fuel grade and temperature)

Liter

Lbs

Liter

Lbs

0.57

1

1.8

1.1

2

3.6

1.7

3

5.4

2.3

4

7.2

2.8

5

9.0

3.4

6

11

4

7

13

4.5

8

14

5.1

9

16

5.7

10

18

11

20

36

17

30

54

23

40

72

28

50

90

34

60

110

40

70

130

TABLES AND CODES - REFERENCE INFORMATION

659

REFERENCE TABLES

TURBINE FUEL VOLUME/WEIGHT

(up to 5 pounds variation per 100 gallons due to fuel grade and temperature)

Liter

Lbs

Liter

Lbs

45

80

140

51

90

160

57

100

180

110

200

360

170

300

540

230

400

720

280

500

900

340

600

1100

400

700

1300

450

800

1400

510

900

1600

570

1000

1800

TURBINE FUEL VOLUME/WEIGHT

(up to 5 pounds variation per 100 gallons due to fuel grade and temperature)

U.S. Gal

Lbs

U.S. Gal

Lbs

0.15

1

6.7

.3

2

13

.45

3

20

.6

4

27

.75

5

33

.9

6

40

1.05

7

47

1.2

8

53

1.35

9

60

1.5

10

67

3

20

130

TABLES AND CODES - REFERENCE INFORMATION

660

REFERENCE TABLES

TURBINE FUEL VOLUME/WEIGHT

(up to 5 pounds variation per 100 gallons due to fuel grade and temperature)

U.S. Gal

Lbs

U.S. Gal

Lbs

4.5

30

200

6

40

270

7.5

50

330

9

60

400

10.5

70

470

12

80

530

13.5

90

600

15

100

670

30

200

1300

45

300

2000

60

400

2700

75

500

3300

90

600

4000

105

700

4700

120

800

5300

135

900

6000

150

1000

6700

TURBINE FUEL VOLUME/WEIGHT

(up to 5 pounds variation per 100 gallons due to fuel grade and temperature)

Liter

Kg

Liter

Kg

1.25

1

.8

2.5

2

1.6

3.8

3

2.4

5.0

4

3.2

6.2

5

4.0

7.5

6

4.8

TABLES AND CODES - REFERENCE INFORMATION

661

REFERENCE TABLES

TURBINE FUEL VOLUME/WEIGHT

(up to 5 pounds variation per 100 gallons due to fuel grade and temperature)

Liter

Kg

Liter

Kg

8.8

7

5.6

10

8

6.4

11

9

7.2

12

10

8

25

20

16

38

30

24

50

40

32

62

50

40

75

60

48

88

70

56

100

80

64

110

90

72

120

100

80

250

200

160

380

300

240

500

400

320

620

500

400

750

600

480

880

700

560

1000

800

640

1100

900

720

1200

1000

800

TABLES AND CODES - REFERENCE INFORMATION

662

REFERENCE TABLES

AVIATION GAS VOLUME/WEIGHT

(approximate according to temperature)

Gal

Lbs

Gal

Lbs

.167

1

6.00

.3

2

12

.5

3

18

.7

4

24

.8

5

30

1.0

6

36

1.2

7

42

1.3

8

48

1.5

9

54

1.7

10

60

3

20

120

5

30

180

7

40

240

8

50

300

10

60

360

12

70

420

13

80

480

15

90

540

17

100

600

33

200

1200

50

300

1800

67

400

2400

83

500

3000

100

600

3600

117

700

4200

133

800

4800

TABLES AND CODES - REFERENCE INFORMATION

663

REFERENCE TABLES

AVIATION GAS VOLUME/WEIGHT

(approximate according to temperature)

Gal

Lbs

Gal

Lbs

150

900

5400

167

1000

6000

AVIATION GAS VOLUME/WEIGHT

(approximate according to temperature)

Liter

Lbs

Liter

Lbs

.631

1

1.58

1

2

3

2

3

5

2

4

6

3

5

8

4

6

10

4

7

11

5

8

13

6

9

14

6

10

16

13

20

32

19

30

48

25

40

63

32

50

79

38

60

95

44

70

111

50

80

127

57

90

143

63

100

158

126

200

317

189

300

476

TABLES AND CODES - REFERENCE INFORMATION

664

REFERENCE TABLES

AVIATION GAS VOLUME/WEIGHT

(approximate according to temperature)

Liter

Lbs

Liter

Lbs

252

400

634

315

500

793

378

600

951

442

700

1110

505

800

1268

568

900

1427

631

1000

1585

AVIATION GAS VOLUME/WEIGHT

(approximate according to temperature)

Liter

Kg

Liter

Kg

1.39

1

.719

3

2

1

4

3

2

6

4

3

7

5

4

8

6

4

10

7

5

11

8

6

12

9

6

14

10

7

28

20

14

42

30

22

56

40

29

70

50

36

83

60

43

97

70

50

TABLES AND CODES - REFERENCE INFORMATION

665

REFERENCE TABLES

AVIATION GAS VOLUME/WEIGHT

(approximate according to temperature)

Liter

Kg

Liter

Kg

111

80

58

125

90

65

139

100

72

278

200

144

417

300

216

556

400

288

695

500

359

834

600

431

974

700

503

1113

800

575

1252

900

647

1391

1000

719

ALTIMETER CORRECTIONS

Extracted from ICAO Document 8168; Vol I; Part III, Chapter 4 — ALTIMETER SETTING
PROCEDURES.
NOTE: This chapter deals with altimeter corrections for pressure, temperature and, where appro-
priate, wind and terrain effects. The pilot is responsible for these corrections except when under
radar vectoring. In that case, the radar controller shall issue clearances such that the prescribed
obstacle clearance will exist at all times, taking the cold temperature correction into account.

PRESSURE CORRECTION

Flight Levels
When flying at levels with the altimeter set to 1013.2 hPa, the minimum safe altitude must be cor-
rected for deviations in pressure when the pressure is lower than the standard atmosphere (1013
hPa). An appropriate correction is 10m (30 ft) per hPa below 1013 hPa. Alternatively, the correc-
tion can be obtained from standard correction graphs or tables supplied by the operator.

QNH/QFE
When using the QNH or QFE altimeter setting (giving altitude or height above QFE datum respec-
tively), a pressure correction is not required.

TABLES AND CODES - REFERENCE INFORMATION

666

REFERENCE TABLES

TEMPERATURE CORRECTION

Requirement for Temperature Correction
The calculated minimum safe altitudes/heights must be adjusted when the ambient temperature
on the surface is much lower than that predicted by the standard atmosphere. In such conditions,
an approximate correction is 4 percent height increase for every 10° C below standard tempera-
ture as measured at the altimeter setting source. This is safe for all altimeter setting source alti-
tudes for temperatures above -15°.

Tabulated Corrections
For colder temperatures, a more accurate correction should be obtained from Tables 1 and 2
below. These tables are calculated for a sea level aerodrome. They are therefore conservative
when applied at higher aerodromes.
NOTE 1: The corrections have been rounded up to the next 5m or 10 ft increment.
NOTE 2: Temperature values from the reporting station (normally the aerodrome) nearest to the
position of the aircraft should be used.

Table 1 – Values to be added by the pilot to minimum promulgated heights/altitudes (m)

Aerodrome

Temperature

(°C)

Height above the elevation of the altimeter setting source (metres)

60

90

120

150

180

210

240

270

300

450

600

900

1200

1500

0

5

5

10

10

10

15

15

15

20

25

35

50

70

85

-10

10

10

15

15

25

20

25

30

30

45

60

90

120

150

-20

10

15

20

25

25

30

35

40

45

65

85

130

170

215

-30

15

20

25

30

35

40

45

55

60

85

115 170

230

285

-40

15

25

30

40

45

50

60

65

75

110 145 220

290

365

-50

20

30

40

45

55

65

75

80

90

135 180 270

360

450

Table 2 – Values to be added by the pilot to minimum promulgated heights/altitudes (ft)

Aerodrome

Tempera-

ture (°C)

Height above the elevation of the altimeter setting source (feet)

200 300

400

500

600

700

800

900

1000

1500

2000

3000

4000

5000

0

20 20

30

30

40

40

50

50

60

90

120

170

230

280

-10

20 30

40

50

60

70

80

90

100

150

200

290

390

490

-20

30 50

60

70

90

100 120 130 140

210

280

420

570

710

-30

40 60

80

100 120 140 150 170 190

280

380

570

760

950

-40

50 80 100 120 150 170 190 220 240

360

480

720

970 1210

TABLES AND CODES - REFERENCE INFORMATION

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REFERENCE TABLES

Table 2 – Values to be added by the pilot to minimum promulgated heights/altitudes (ft)

(continued)

Aerodrome

Tempera-

ture (°C)

Height above the elevation of the altimeter setting source (feet)

200 300

400

500

600

700

800

900

1000

1500

2000

3000

4000

5000

-50

60 90 120 150 180 210 240 270 300

450

590

890 1190 1500

MOUNTAINOUS AREAS — ENROUTE

The MOC over mountainous areas is normally applied during the design of routes and is stated in
State aeronautical information publications. However, where no information is available, the mar-
gins in Tables 3 and 4 may be used when:

a. the selected cruising altitude or flight level or one engine inoperative stabilizing altitude is at

or close to the calculated minimum safe altitude; and

b. the flight is within 19km (10 NM) of terrain having a maximum elevation exceeding 900m

(3000 ft).

MOUNTAINOUS AREAS — TERMINAL AREAS

The combination of strong winds and mountainous terrain can cause local changes in atmos-
pheric pressure due to the Bernoulli effect. This occurs particularly when the wind direction is
across mountain crests or ridges. It is not possible to make an exact calculation, but theoretical
studies have indicated altimeter errors as shown in Tables 5 and 6. Although States may provide
guidance, it is up to the pilot-in-command to evaluate whether the combination of terrain, wind
strength and direction are such as to make a correction for wind necessary.
Corrections for wind speed should be applied in addition to the standard corrections for pressure
and temperature, and ATC advised.

Table 3 – Margin in mountainous areas (SI units)

Terrain variation

MOC

Between 900m and 1500m

450m

Greater than 1500m

600m

Table 4 – Margin in mountainous areas (non-SI units)

Terrain variation

MOC

Between 3000 ft and 5000 ft

1476 ft

Greater than 5000 ft

1969 ft

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REFERENCE TABLES

Table 5 – Altimeter error due to wind speed (SI units)

Wind speed (km/h)

Altimeter error (m)

37

17

74

62

111

139

148

247

Table 6 – Altimeter error due to wind speed (non-SI units)

Wind speed (kt)

Altimeter error (ft)

20

53

40

201

60

455

80

812

NOTE: The wind speed values were measured 30m above aerodrome elevation.

TABLES AND CODES - REFERENCE INFORMATION

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REFERENCE TABLES

Tables and Codes

NOTAM Reference Information

INTRODUCTION

NOTAMs promulgating significant information changes are disseminated from locations all over
the world. NOTAMs are intended to supplement Aeronautical Information Publications and pro-
vide a fast medium for disseminating information at a short notice. The following format and codes
are used in disseminating NOTAMs.

TYPICAL NOTAM — IN THE SYSTEM NOTAM FORMAT

NOTAM REFERENCE INFORMATION

671

NOTAMS

FORMAT EXPLANATION OF SYSTEM NOTAM

NOTAMN — New NOTAM
NOTAMR — Replaces a previous NOTAM
NOTAMC — Cancels a NOTAM
NOTAMS — SNOWTAM
NOTAM format item Q is divided into eight separate qualifier fields.
a.

FIR — ICAO location indicator plus “XX” if applicable to more than one FIR.

b.

NOTAM CODE — If the subject of the NOTAM (second and third letter of NOTAM code) is
not in the NOTAM Code , the following letters should be used to reference the subject cate-
gory.

QAGXX = AGA

QCOXX = COM

QRCXX = RAC

QXXXX = Other

c.

TRAFFIC — I = IFR

 

 

V = VFR

 

 

IV = IFR/VFR

d.

PURPOSE
—

N = Selected for the immediate attention of aircraft operators.

 

 

B = Selected for preflight information bulletins.

 

 

O = Operationally significant for IFR flights.

 

 

M = Miscellaneous.

e.

SCOPE —

A = Aerodrome

 

 

E = Enroute

 

 

W = Navigational warning

f.

LOWER — Used when applicable to indicate lower limits of the affected area. Default value
of 000 is used when limit is not defined.

g.

UPPER — Used when applicable to indicate upper limit of the affected area. Default value
of 999 is used when limit is not defined.

h.

COORDINATES RADIUS — Latitude and longitude present approximate center of a circle
whose radius encompasses the whole area of influence.

NOTAM format items A thru G provide information on location, times, changes and limits.
A)

 

ICAO location indicator of aerodrome or FIR.

B)

 

Ten figure date-time group indicating when the NOTAM comes into force.

NOTAM REFERENCE INFORMATION

672

NOTAMS