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VULCAN POWER SQUADRON
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Geographic Range

D (Nautical Miles) = 1.17 x sqrt of height
D (Statute Miles) = 1.35 x sqrt of height

Height
Ft.
(Meters)		Distance
Nautical
Miles		Distance
Statute
Miles
5 (1.5)2.63.0
10 (3.0)3.74.3
15 (4.6)4.55.2
20 (6.1)5.26.0
25 (7.6)5.96.8
30 (9.1)6.47.4
35 (10.7)6.98.0
40 (12.2)7.48.5
45 (13.7)7.89.1
50 (15.2)8.39.5
55 (16.8)8.710.0
60 (18.3)9.110.5
65 (19.8)9.410.9
70 (21.3)9.811.3
Height
Ft.
(Meters)		Distance
Nautical
Miles		Distance
Statute
Miles
75 (22.9)10.111.7
80 (24.4)10.512.1
85 (25.9)10.812.4
90 (27.4)11.112.8
95 (29.0)11.413.2
100 (30.5)11.713.5
110 (33.5)12.314.2
120 (36.6)12.814.8
130 (39.6)13.315.4
140 (42.7)13.816.0
150 (45.7)14.316.5
200 (61.0)16.519.1
250 (76.2)18.521.3
300 (91.4)20.323.4







Total Range (Observer to Object) in Nautical Miles
Total Range (Observer to Object) in Statute Miles
Height of Observer's Eyes
Height
of Light		510152025
55.2
6.0		6.3
7.3		7.1
8.2		7.8
9.0		8.5
9.8
106.3
7.3		7.4
8.6		8.2
9.5		8.9
10.3		9.6
11.1
157.1
8.2		8.2
9.5		9.0
10.4		9.7
11.2		10.4
12.0
207.8
9.0		8.9
10.3		9.7
11.2		10.4
12.0		11.1
12.8
258.5
9.8		9.6
11.1		10.4
12.0		11.1
12.8		11.8
13.6
309.0
10.4		10.1
11.7		10.9
12.6		11.6
13.4		12.3
14.2
5010.9
12.5		12.0
13.8		12.8
14.7		13.5
15.5		14.2
16.3
7512.7
14.7		13.8
16.0		14.6
16.9		15.3
17.7		16.0
18.5




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Height of light (feet): Height of observer's eyes (feet):

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