Time Factors for Speed Differentials |
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Miles per
hour = (Gear Development in feet) X (Revolutions per minute) X 0.0114 |
GD = (MPH x
88) divided by rpm |
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Time to
close gap = Gap in seconds X speed differential factor |
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Time gained
in an attack = attack time in seconds divided by speed-differential factor |
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Speed Differentials |
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Constant speed (mph) |
1 mph (sec) |
2 mph (sec) |
3 mph (sec) |
4 mph (sec) |
5 mph (sec) |
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12 |
12 |
6 |
4 |
3 |
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14 |
14 |
7 |
4.7 |
3.5 |
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16 |
16 |
8 |
5.3 |
4 |
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18 |
18 |
9 |
6 |
4.5 |
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20 |
20 |
10 |
6.7 |
5 |
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22 |
22 |
11 |
7.3 |
5.5 |
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24 |
24 |
13 |
8 |
6 |
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26 |
26 |
13 |
8.7 |
6.5 |
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28 |
28 |
14 |
9.3 |
7 |
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30 |
30 |
15 |
10 |
7.5 |
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32 |
32 |
16 |
10.7 |
8 |
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34 |
34 |
17 |
11.3 |
8.5 |
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