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2-8
2.2.6 ADU mast design: Foundation and height
The ADU mast must be designed to carry the weight of the ADU unit, which is 126,5 kg
(FV-110). 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.
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 2-6: FV-110: ADU mast flange, top and side view
Figure 2-7: ADU mast flange, recommended flatness on the mast mount
plateau
Gusset plates
(15 mm thick)
15 mm
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