Manitowoc Grove RT770E Operator's Manual page 29

RT770E OPERATOR MANUAL
Calculation of Projected Wind Area (Ap)
8 m
Wind
1 m
3 m
25 ft
Wind
3 ft
10 ft
8384-1
Determining Wind Drag Coefficient (Cd)
Table 2-2 shows the typical Shapes and corresponding Wind
Drag Coefficient (Cd) values.
Grove
:
Wind
2
A = 8 m
p
Wind
2
A = 75 ft
p
If the exact Wind Drag Coefficient of a shape is not known,
use the maximum value of the shape's range
((Table 2-2)).
If the wind drag coefficient of the load cannot be estimated or
determined, it shall be assumed that (Cd) = 2.4.
Published 04-04-2017, Control # 446-09
SAFETY INFORMATION
8 m
3 m
1 m
25 ft
10 ft
3 ft
2
A = 24 m
p
2
2
A = 250 ft
p
FIGURE 2-2
2-11