Series R y ST. Manual de Usuario /
R and ST Series. User's Manual
51
4. FLYING
Warnings
Only experienced installers should fly speaker boxes. Consult a
certified professional if needed. Local regulations may apply
with regards to overhead suspension.
The working load limits in this manual are the results of tests
by independent laboratories. It is the user’s responsibility to
stay within safe limits.
Working load data for auxiliary hardware mentioned in this
manual have been obtained from their manufacturers, who are
responsible for the compliance to their specifications.
To this date, there is no international standard regarding the
flying of acoustic systems. However, it is common practice to
apply 5:1 safety factors for enclosures and static elements,
and 7:1 for slings and elements exposed to material fatigue
due to friction and load variation. Thus, an element with a
breaking load limit of 1000 kg may be statically loaded with
200 kg and dynamically loaded with 142 Kg.
When flying a system, the working load must be lower than
the resistance of each individual flying point in the enclosure.
Hanging hardware should be regularly inspected and suspect
units replaced if in doubt. This is important to avoid injury and
absolutely no risks should be taken on this respect. It is highly
recommended that you implement an inspection and
maintenance programme on flying elements, including reports
to be filled out by the personnel that will carry out the
inspections. Local regulations may exist that, in case of
accident, may require you to present evidence of inspection
reports and corrective actions after defects were found.
Absolutely no risks should be taken with regards to public
safety.
When flying enclosures from ceiling support structures,
extreme care should be taken to assure the load bearing
capabilities of the structures so that the installation is
absolutely safe. Do not fly enclosures from unsafe structures.
Consult a certified professional if needed.
4.1 Introduction
Flyable ST and R series models feature 4 internal steel angles,
with 4 mounting threads each, so that 16 flying points are
available (4 on each side, 4 on the top panel and 4 on the
bottom panel). 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 illustration shows the internal metal hardware of an
enclosure with eyebolt flying.
In addition to the eyebolt flying points, some models provide
two aeronautic-type AncraTracks on the top panel and two on
the bottom panel. This system allows fast system flying using
two or four rigging points.
The illustration shows the internal metal hardware and
hanging of an enclosure with eyebolt and track-based flying.
Truss modules and accessories are available for flying DAS
boxes. Consult your distributor for information.
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