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.
We will measure, and provide a Prop Scan computer
generated report of your propeller Free of
charge!
