AC 70/7460-1F

Historical

Advisory circular · Obstruction Marking and Lighting

A newer version is currentThis is a historical version. AC 70/7460-1M is the version in force, approved November 6, 2020.
Last reviewed
October 31, 2023
Cancels
AC70/7460-1E
Family
AC 70/7460-1 · 7 versions
Revision
F, 1F
14 CFR parts
77, 91
14 CFR sections
§ 77.13§ 91.105

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed November 21, 2025.

Show pages 37–48
Page 49OCROpen in PDF

AC 70/7460-1F Appendix 1 9/27/78 More than 150 ft. (45m) but not more than 300 ft. (90m)

PAINTING AND LIGHTING OF WATER TOWERS AND SIMILAR OBSTRUCTIONS Fig. 4.

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9/27/78 AC 70/7460-1F appendix 1

PAINTING OF SINGLE PEDESTAL WATER TOWER BY TEARDROP PATTERN Fig. 5.

276-776 0 - 79 - 5 Page 5

Page 51OCROpen in PDF

AC 70/7460-1F 9/27/78 Appendix 1 Inboard lights recommended on all levels above height of shorter structure 200' or less (60m) Inboard Lights ] 695' may be omitted (208m) | 495" 466' (149m) (140m) 700' (210m) 250' 242' (73m) (75m)¡ (150m) 500' 233' (70m) Minor adjustments in vertical placement may be made to place Lights on same horizontal plane.

Lights on both structures to be synchronized.

17. f. (2) Fig. 6.

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9/27/78 AC 70/7460-1F Appendix 1

- 200' (60m) or less All levels may be omitted 1/2 680' AGL 600' (204m) (180m) 250ª AGL (75m) 1/2 Lowest level should be above adiacent structure. Structures of equal height. Number of levels depend upon height of structure.

17. f. (1) Lights on both structures to be synchronized.

17. f. (2) 200' (60m) or less - 200' (60m) Top level- or less Display all units #695' Lower levels may (208m.)

be omitted 65Q° •466' (195m) 700' | (140m) 434' (210m) AGL (89m) 295°1 (130m)

•233' 300' (70m) AGL (90m) One structure higher than adjacent structure and light levels are on same horizontal plane, One structure higher than adjacent structure Lights on both structures to be synchronized. 17.f. (2) and light levels are not on same horizontal planes.

17. f. (2) Fig. 7.

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AC 70/7460-1F 9/27/78 Appendix 1 paa - 20' (6m) or less b- More than 20' (6m) but less than 100' (30m) 800' AGL (240m) 300' AGL (90m)

17. e. (1) and (2) Fig, 8.

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9/27/78 AC 70/7460-1F Appendix 1

HYPERBOLIC COOLING TOWER Fig. 9.

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AC 70/7460-1F 9/27/78 Appendix 1 BRIDGE LIGHTING Fig. 10.

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9/27/78 AC 70/7460-1F Appendix 2 CHAPTER 5

STANDARDS FOR LIGHTING

TOWERS, CHIMNEYS, POLES

AND SIMILAR OBSTRUCTIONS

AVIATION RED OBSTRUCTION LIGHTING (NIGHTTIME) 1200 HEIGHT OF LIGHTS ON STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL (366m) LEGEND:

BEACON

OBSTRUCTION LIGHTS 1000 (305m) "А-6" 800 ТОР (244m) ."А-5" TOP 600 "Д-4" 5/6 (183m ТОР А-З" 4/5 2/3 400 TOP (122m ￾"'А=2" 3/* # 3/5 1/2 - +0?

200 2/3 2/5 1/3 (61 m) 1/3 1/5 1/6 46m) 50 -2 LEVELS t (92m) 300 -3 LEVELS - (137m) 450 •4 LEVELS • - 5 LEVELS- (183m) 600 (229m) 750 -f6 LEVELS - (275m) 900

HEIGHT OF STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL Fig. 1.

Page

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AC 70/7460-1F 9/27/78 Appendix 2 2100 (641 m) 1900 AVIATION RED OBSTRUCTION LIGHTING (NIGHTTIME) (580m) 1700 LEGEND:

HEIGHT OF LIGHTS ON STRUCTURE IN FEET METERS) ABOVE GROUND LEVEL (519m) I OBSTRUCTION LIGHTS BEACON "A-10" TOP— "A-9 'A=8" 07 9/10

TELL A/S 1r 7/0 17 (275m) 900 52/3917 (214m) 500 (153m)

- 3/7 5/8- 3/10 300 (92m) 100 PHEW 1/8: 10 (31m)) (275m) 900 (320m) 1050 (366m) 1200 (412m) 1350 • (458m) 1500 7 LEVELS - 8 LEVELS 19 LEVELST —10 LEVELS-

HEIGHT OF STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL Fig. 2.

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9/27/78 AC 70/7460-1F 2100 Appendix 2 (64]m -AVIATION RED OBSTRUCTION LIGHTING (NIGHTTIME) "A~14" LEGEND: #†ОР BEACON "A-13" (580m) 1900 OBSTRUCTION LIGHTS TÖP "A-12" ТОР:

HEIGHT OF LIGHTS ON STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL (51 9m) 1700 "А-Ì →*É12/13' _6/7 /12 11/13 17/14 1500 (458m) 5/% 10/13 E15/7^ 1300 (397m) 159/13 1100 8/1 є/Z - 18/131 (336m) + 1/2 900 (275m + 1/2 16/31117 (21 4m 700 15/13 £/L: F4/1347 = 2/77 500 (153m) 3/11 13/14 300 (92m) 2/13 (31m) 100 1500 1650 1/12 Н[V/13 H14 F (458m) • 11 LEVELS • HEIGHT OF STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL (503m) —12 LEVELS (549m) 1800 - 13 LEVELS - 14 LEVELS -→ (595m) 1950 (641 m) 2100 Fig. 3.

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AC 70/7460-1F 9/27/78 Appendix 2 CHAPTER 6

STANDARDS FOR LIGHTING

CHIMNEYS AND

SIMILAR SOLID OBSTRUCTIONS -HIGH INTENSITY WHITE OBSTRUCTION LIGHTS

IDAY AND NIGHTTIME - HEIGHT OF LIGHTS ON STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL "B=2" ot 400 (122m "B-1 200 ((61m) 150 300 400 500 600 .. 700 . 800 900 (46m) (92m) (122m) (153m) (1183m) (214m) ' (244m) (275m) I LEVEL • 2 LEVELS - - 3 LEVELS•

HEIGHT OF STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL Flo. 4.

Page 60OCROpen in PDF

9/27/78 AC 70/7460-1F Appendix 2 1900 (580m) 1700 HEIGHT OF LIGHTS ON STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL (519m HIGH INTENSITY WHITE OBSTRUCTION LIGHTS _DAY AND NIGHTTIME T 1500 "B-5" (458m) 1300 (397m) "B=4" TOP 1100 1215- (336m) 900 (275m)

- 3/5- 700 (21 4m 500 (153m 300 1/3 (92m 1/4 1/5 100 (31m) 275m) 900 +3 LEVELS 1- HEIGHT OF STRUCTURE IN FEET (METERS) ABOVE GROUND LEVEL (305m) 1000 (336m) TTО0 "4 LEVELS (366m) 1200 (397m) 1300 (427m) 1400 → 5 LEVELS- (458m) 1500 Fig. 5.