Second Edition • First Printing
Operator's Manual Supplement
Wind Speed Chart
Part No. 1314078GT
Lighting Technicians and Studio Grips Supplement
7
Wind Speed Chart
For Light Diffusion Frames and Large
Surface Area Platform Attachments on
Genie Booms
Tip Over Hazard
Using a boom in wind speeds
greater than recommended or
exceeding the recommended
surface area of the platform by
attaching movie production
equipment will result in the
boom becoming unstable and
will result in death or serious
injury.
When movie production equipment, such as light
diffusion frames or set lighting, is attached to a
boom platform, operation in windy conditions is
limited by the frame size (or total surface area of
the equipment) and wind speed as follows:
•
Machines used outside with a device to
accurately measure the wind can use the full
wind speed table.
•
Machines used outside without a device to
accurately measure the wind must assume
28 mph/12.5 ms when using the table.
•
Machines that are used indoors can assume
0 mph wind and therefore use the largest
diffusion frame listed.
Frame Size
ft
Area
sq ft
Maximum Wind Speed
mph
4 x 4
16
28
6 x 6
36
28
8 x 8
64
22
12 x 12
144
14.5
20 x 20
400
9
Frame Size
m
Area
sq.m
Maximum Wind Speed
m/s
1.2 x 1.2
1.5
12.5
1.8 x 1.8
3.3
12.5
2.4 x 2.4
5.9
9.8
3.7 x 3.7
13.4
6.5
6.1 x 6.1
37.2
4
Summary of Contents for Genie S-45 Trax
Page 17: ......
