Series R y ST. Manual de Usuario /
R and ST Series. User's Manual
54
4.3 Flying with AncraTrack
The optional ANL-3 set comprises one double-stud track
connector with lifting ring and one carabiner that is available
separately.
Each ANL-3 track connector has a rated working load of 225
kg. (495 lbs.). Each ANL-3 carabiner has a working load of 330
kg (726 lbs.). If using other hardware, make sure it is rated to
handle the required load. Always ensure that the double-stud
connector is well connected to the track by shaking the piece
firmly.
When using track based rigging 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 changes for other angles. The drawing
illustrates the concept. The table shows the variation of the
working load as a function of the load angle.
0 degrees
45 degrees
90 degrees
% work load
100% 80% 80%
When using AncraTrack, the following vertical angles for the
cabinet are obtained when connecting to the different track
positions. The position relates to the hole number above which
the ring is found. Position 1 is the closest to the front of the
enclosure. Note that positions 1 and 9 mean that only one
connector stud attaches to the track, as opposed to two for all
angles in between. Use positions 1 and 9 for single enclosure
flying only, or for flying the bottom speaker out of a column
(typically for downfill applications). Negative angles denote
downward pitch. Positive angles denote upward pitch.
Track hole number
ST-110 ST-112 ST-215
2 +13º
+5º
+6º
3 +8º
+1º
+3º
4 +3º
-2º
0º
5 0º
-6º
-3º
6 -5º
-10º
-6º
7 -10º
-14º
-9º
8 -13º
-17º
-12º
9 -17º
-20º
N/A
The following illustrations show different views on AncraTrack
flying for a single box. The track position where the speaker is
picked determines the vertical angle of the box.
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