
SAFETY INFORMATION
CD25
2-12
Published 1-06-2017 Control # 579-01
2-12
Table 2-2 Wind Drag Coefficient
Maximum Permissible Wind Speed
If the wind resistant area of the load
Awr
(load)
is greater than
the allowable wind resistant area
Awr
(allow)
, the ratio can be
used to determine a permissible wind speed
V(z)
for the load
using Table 2-3.
Table 2-3
Awr
Ratio and Permissible Wind Speed
V(z) - Non - metric
8384-2
Shape
Cd
1.1 to 2.0
0.3 to 0.4
0.6 to 1.0
0.8 to 1.2
0.2 to 0.3
0.05 to 0.1
Approximately 1.6
Turbine Blade or
Complete Rotor
Note: Permissible and rated wind speeds in this table are the 3-second gust wind speeds at boom tip height.
Ratio:
1.2
1.4
1.6
1.8
2
Maximum Permissible Wind Speed (mph)
For Rated Capacity at 30 mph
27.4
25.4
23.7
22.4
21.2
For Allowable Capacity at 45 mph
41.1
38.0
35.6
33.5
31.8
Reference Only
Содержание CD25
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Страница 156: ...8 4 SPECIFICATIONS CD25 Published 1 06 2017 Control 579 01 Boom angle Maximum 80 Minimum 0 R e f e r e n c e O n l y ...
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