| PropExpert
FAQ
What
is PropExpert ?
PropExpert
is a software tool for the selection and analysis of propeller
systems for work boats and pleasure craft. Built upon the award-winning
NavCad™ technical library, PropExpert provides the tools
needed for the proper selection of propulsion systems components
- engine, gear and propeller.
Who should use PropExpert ?
Anyone sizing
commercial propellers - marine equipment salespeople, boat
builders, designers - should use PropExpert. Particular consideration
is given to the requirements of engine and propeller sales
people. Companies large and small from every continent rely
on PropExpert for their propeller sizing needs.
Work
boats and pleasure craft generally describe the scope of PropExpert.
This would typically include motor yachts, tugs, trawlers, patrol
craft and sport fishing boats. Only a few data items are needed
to adequately describe the vessel for PropExpert's various analyses
and calculations.
What types of propellers can I size with PropExpert
?
PropExpert
can determine optimal diameter, pitch, blade area and RPM for
virtually all commercially-available inboard propellers of 2
to 5 blades, from about 450 mm (18") diameter up to about
2.5 m (100"). Both flat-faced (Gawn) and foil section (B-series)
propellers are supported, as well as ducted propellers (Kaplan).
Unique to PropExpert is its ability to evaluate cupped propellers
.
Can
I use PropExpert to estimate vessel speed ?
PropExpert
offers three techniques to estimate the speed of the vessel. The
most accurate method is to base the estimation on a prior trial
of the vessel. The trial of a similar vessel can also be used.
When reliable trial data is unavailable, you can use PropExpert's
basic speed estimation formula.
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