D.A.S. Audio Aero - Manual (Page 27)

When the boxes are flown the safety pins
must be inserted in the G2A48 slots. Now we want to
stack the boxes, so the next step is to release the pins
from the slots and introduce them in the G2A48 holes.
It must be done by first lowering the boxes till the
safety pins can be removed, then raise the boxes till
the holes fit together and finally insert the safety pins
again.
Lower the cluster till the platform is resting
on the floor.
67
Aero-38
Manual del usuario/ User´s manual
8
G2A48
Stack Fly
G2A48
9
1
12
11
10
3
4
2
G2A48
The cluster must now be lowered (10) until
the safety pins (11) on the rear side of box number 4
can be removed. Once safety pins have been released
the cluster must be raised or lowered (13) until the
hole in the G2A48 piece matches with the hole that
determines the angle chosen by the user.