D.A.S. Audio WR Systems - Manual (Page 14)

The WR series models feature internal steel
flying points with mounting threads. These eyebolt
flying points are factory sealed with M10 screws,
which are replaced with eyebolts on the flying
points as required. Flying with eyebolts is very
economical and safe, and is specially
recommended for fixed installations where the
boxes are permanently fixed.
The Allen-head screws must be removed and
replaced by M10 eyebolts on one side of the
enclosure. Each rigging point has a 200 kg (440 lb)
working load limit. Then choose the slings or
chains of required load resistance and length,
bearing in mind that the length difference between
the front and back slings or chains will determine
the vertical orientation. Alternatively, the back
bottom eyebolt point can be used to provide
vertical orientation.
The ANL-2 set is an optional set of four
eyebolts and four carabiners. (Dimensions below
are in millimetres).
Flying with eyebolts
Each ANL-2 eyebolt has a rated working load
of 200 kg. (440 lb). Each ANL-2 carabiner has a
working load of 330 kg (726 lb). If using other
hardware, make sure it is rated to handle the
required load.
When using eyebolts it is important to bear in
mind that the rated working load is only true for a
load applied in the plane of the eye, and is
significantly reduced for other angles. The drawing
illustrates the concept. The table shows the
variation of the working load as a function of the
load angle.
The following illustrations show different views
on eyebolt flying for a single box. The length of the
back cables or chains determines the vertical
angle of the box.
ANL-2
Manual del Usuario / WR series / User’s Manual
100% 65% 30% 25%
0 Degrees
% of working
load
30 Degrees 45 Degrees More than 45
Degrees
In the case of the ANL-2 eyebolt, this means
that the 200 kg working load becomes 60 kg at 45
degrees. Do not use eyebolt flying if the load angle
is higher than 45 degrees.
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