Site preparation
3-8
Chapter 3: Installation
98-133966-G1
3.2.6
ADU mast design: Foundation and
height
The ADU mast must be designed to carry the weight of the ADU unit,
which is 130 kg (Var. A) or 126,5 kg (Var. B) (+ the weight of the mast
flange). The mast must also be able to withstand on-board vibrations
and wind speeds up to 110 knots on the radome, even in icing
conditions.
3..2.6.1
ADU mast flange
Fit the top of the ADU mast with a flange with clearance holes
matching the bushings in the radome and with minimum 4 gusset
plates. No center hole is necessary in the flange.
•
Flange thickness
: Minimum 15 mm.
•
4 gusset plates
: Minimum 15 mm thick, must be placed close
to the holes in the mounting plate and evenly distributed.
Recommended flatness on the mast mount plateau is below 3,0 mm.
Figure 3-6:
ADU
mast flange, top and side view
Gusset plates
(15 mm thick)
15 mm
Figure 3-7: ADU mast flange, recommended flatness on the mast mount
plateau
SAILOR900TM.book Page 8 Monday, September 16, 2013 11:01 AM
Summary of Contents for Sailor 900 VSAT
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