4-5
90゜
90゜
MAX 1m
INSTALLATION
2. INSTALLATION CONDITIONS
The Trunk Pipe should be installed satisfying the following conditions.
z
The position for installation should be within 1/3 to 1/2 of the overall length from the bow.
z
It also should be on the keel or within 1 meter from the keel.
FLANGE HOLE ANGLE
z
There should be no obstacles
which may interrupt bolt
clamping of the Flange right
below the Flange of the Trunk
Pipe.
z
The top end of the Trunk Pipe
should not project below the
keel end.
TRUNK PIPE TRUNK PIPE
z
The Flange surface of the Trunk
Pipe should stay level during
standard cruise.
z
Apply FRP sufficiently to all the
necessary sections to prevent
leakage of water.
z
Make the surrounding of the
Trunk Pipe projecting out from
the bottom in a stream-line
shape, and provide a fairing
plate to suppress water
resistance and generation of air
bubbles to the minimum.
z
Install a holder to stop shaking
if necessary.
z
When doing this, make sure the
holder does not interfere bolt
clamping of the Flange.
Fully discuss about the strength and water tightness with the ship owner, the
engineer in the shipyard, and the installer before determining on the position, the
method of installation, and necessary materials.
SPACE UNDER
FLANGE
VIBRATION SUPPORT
(HOLDER)
FRP
KEEL KEEL
DANGER
NOT TO PROTRUDE LOWER THAN KEEL
FAIRING PLATE