User Guide

Site planning Planning considerations
2-12
pmp-0047 (December 2012)
Force (in kilogrammes) = 0.1045aV
2
Where: Is:
a surface area in square meters
V wind speed in meters per second
The lateral force produced by a single PMP 450 at different wind speeds is shown in Table 13 Lateral force -
metric and Table 14 Lateral force - US.
Table 13 Lateral force - metric
Largest
surface area (square meters)
Lateral force (Kg) at wind speed
(meters per second)
30 40 50 60 70
.066 (AP) 6 11 17 25 34
.0027 (SM) 0.25 0.45 0.7 1 1.4
Calculation of lateral force (US)
The magnitude of the lateral force can be estimated from:
Force (in pounds) = 0.0042Av
2
Where: Is:
A surface area in square feet
v wind speed in miles per hour
The lateral force produced by a single PMP 450 unit at different wind speeds is shown in Table 14.
Table 14 Lateral force - US
Largest surface area (square
feet)
Lateral force (lb) at wind speed
(miles per hour)
80 100 120 140 150
0.71 (AP) 19 30 43 58 67
0.29 (SM) 7.8 12 18 23 27