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Weld-in
installation:
1) the upper part is installed from above;
2) the upper part is welded at the hull bottom and
at the top flange, the lower part is brought into
place from below the hull;
3) the lower part is bolted to the upper part
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Weld-in
Installation
The weld in installation is the strongest installation
into the hull and the propulsor is an integrated part
of the hull structure. The propulsor is usually installed
in two parts - the upper part, that is welded into
the hull, from above and the lower part from below
the hull.
Pros
and Cons:
+
Propulsor cost
+ Small hole in hull
+ No machining required on board
+ Easily transported
- Installation in two parts
- Dry-docking required for service of lower part
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