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 MIL-HDBK-1013/14
To inflict damage on any protected property, the vehicle must first penetrate the perimeter
security barriers. To achieve this, the vehicle must have a certain level of kinetic energy. The
kinetic energy of a moving vehicle is a function of its weight and speed. A heavy vehicle moving at
a low rate of speed, or a lighter vehicle at a high rate of speed could have the same kinetic energy.
Kinetic energy for 4,000-pound and 15,000-pound vehicles, traveling at various speeds,
is shown in Table 2. Once the kinetic energy of the vehicle has been determined, active and passive
barriers, capable of stopping the vehicle, can be selected from the information contained in
Section 8.
Table 2
Kinetic Energy Developed by Vehicle, ft-lbf (kgf-m) x 1,000
Speed of Vehicle in mph (kph)
Vehicle Weight in
10
20
30
40
50
60
70
pounds (kg) ↓
(16)
(32)
(48)
(64)
(80)
(97)
(113)
4,000-lb (1,818 kg)
13
53
120
214
334
481
655
Vehicle
(2)
(7)
(17)
(29)
(46)
(66)
(90)
15,000-lb (6,818 kg)
50
200
451
802
1,253
1,804
2,455
Vehicle
(7)
(28)
(62)
(111)
(173)
(249)
(339)
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