Difficulties you may be having with
your propeller:
Propeller
Induced Vibration:
Propeller induced
vibration can be caused by inaccuracies in pitch, camber and
section shape. Prop Scan allows us to see and remove these
inaccuracies. This results in a smoother, more efficient and
often faster propeller.
Tip Erosion:
Abrasives present in the
surroundings often cause tip erosion. Tip erosion reduces the
overall diameter and performance of your propeller.
Propeller
Cavitation:
Propeller cavitation causes
vibration, noise and serious damage to your propeller. Can it be
avoided? Cavitation problems must be split into two categories.
1 Propeller induced cavitation. 2 Vessel induced cavitation i.e.
cavitation caused by appendages, hull shape and application. If
the cavitation is propeller induced then Prop Scan technicians
can measure your propeller and show you the cause of it.
Singing Propeller:
Some propellers produce
a high pitched noise at certain points between idle speed and
full RPM. At the best of times this can be annoying, if this
point lies spot in the middle of your cruising RPM it will be
intolerable. Prop Scan technicians have the solution.
Propeller induced
engine overload:
If you are the proud owner of a
beautiful yacht but you are a little embarrassed about the black
smoke that is emerging from its transom, then it's time to do
something about it. Overloading your engine will vastly reduce
the overall life of this engine.
Propeller not
loading the engine:
When an engine revs higher than
its recommended maximum RPM, it does not develop its maximum
Horsepower. In other words you are not using your engine at its
utmost capabilities. Most of the time this means there is
additional speed to be gained.
Fuel Consumption:
Does your boat consume more fuel than
the recommended amount? The reason for greater fuel consumption
is having a low classed propeller. On
average, an ISO Class I propeller uses between 5-10% less fuel
than a Class III propeller!
Propellers not
synchronized:
Many twin screw vessels have
badly synchronized propellers, in other words the port and
starboard engine are not loaded equally at maximum RPM. This is
caused by pitch, camber and section shape differences between
the two propellers.
Reversing
problems:
Reversing qualities are
influenced by the position of your propeller and the section
shape on the suction side of your propeller. If there is a
suction section shape problem, technicians can locate it.
Poor propeller
performance:
Poor propeller performance can
be caused by MANY different reasons. Incorrect propeller
selection, poor propeller accuracy etc. etc.. What ever it is
there is now a way to find it.
Bring
in your propellers and we will measure, and provide a Prop Scan computer
generated report of your propeller Free
of charge!
