Site preparation
99-145912-A Chapter 3: Installation 3-11
- always consider the environment and characteristics of the ship before
deciding on the mast dimensions.
Mast without
braces
Max. free mast
length (steel), (m)
Outer
Diameter (mm)
Wall
Thickness (mm)
Weight
(kg/m)
0.4
a
200 5 24.0
0.6 220 5 26.5
0.8 250 5 30.2
1270532.7
Table 3-2: Mast dimensions without braces
a. The height of 0.4 m is not recommended to be used as it will make access through
the ADU’s service hatch difficult.
Mast with 3 braces
Max. free
mast length
(steel), (m)
Outer
Diameter
(mm)
Wall
Thickness
(mm)
Outer
Diameter
for brace
(mm)
Thickness
for brace
(mm)
1.2 140 10 50 5.0
1.2 200 5 50 5.0
1.6 140 10 70 5.0
1.6 200 5 70 5.0
2 160 10 70 5.0
22205 705.0
2.5 180 10 80 5.0
2.5 220 5 80 5.0
Table 3-3: Mast dimensions with 3 braces