Manitowoc National Crane 800D User Manual

National Crane Published 5-27-2018 Control # 039-06 1-11
800D SAFETY INFORMATION
Calculation of Projected Wind Area (Ap):
Determining Wind Drag Coefficient (Cd)
Table 1-2 shows the typical Shapes and corresponding Wind
Drag Coefficient (Cd) values.
If the exact Wind Drag Coefficient of a shape is not known
,
use the maximum value of the shape’s range
(Table 1-2).
If the wind drag coefficient of the load cannot be estimated or
determined, it shall be assumed that (Cd)=2.4.
A
p
=24m
2
A
p
=8m
2
Wind
Wind
8m
1m
3m
8m
1m
3m
A
p
= 250 ft
2
A
p
=75ft
2
Wind
Wind
25 ft
3ft
10 ft
25 ft
3ft
10 ft
8384-1
FIGURE 1-2
Fo
r
Reference
Only

Manitowoc National Crane 800D Specifications

General

Brand	Manitowoc
Model	National Crane 800D
Category	Construction Equipment
Language	English