INTRODUCTION TO NAVCADTUTORIAL
May 2017
Doug Smith
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WHAT IS NAVCAD?
A resistance and propulsion prediction software
Navcad is a valuable tool for naval architects interested in resistance and
propulsion predictions of ships
• There is a large library of prediction methods available (notes on
each method are available in help menu)
• Methods allow for quick computation of R and P Data
• Like all predictive analysis, one must be aware of the potential error
between the case being examined and the model being applied
• An excellent tool for initial design estimates of the resistance and
power requirement of a vessel.
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GETTING STARTED
Double click Icon
Start Menu> All Programs >Hydrocomp> NavCad 2014
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GETTING STARTED
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Calc. Menu
Task List
Tabular Data
Data
Entry
Menu
Plot
Window
GETTING STARTED
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Check Units
Edit > Units >
Select Mode
Enter/Edit Data
GETTING STARTED
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Enter Condition Data
GETTING STARTED
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Enter Hull Data
GETTING STARTED
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Enter Appendage Data if Applicable
GETTING STARTED
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Enter Environment Data
GETTING STARTED
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Enter Margin Data
GETTING STARTED
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Enter Propulsor Data
PREFORMING COMPUTATION -RESISTANCE
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Selecting prediction methods > Calculate
Method Expert
VIEW RESULTS - RESISTANCE
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VIEW RESULTS - RESISTANCE
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Select custom graphs and Reports
PREFORMING COMPUTATION -PROPULSION
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Selecting prediction methods > Calculate
VIEW RESULTS - PROPULSION
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Select custom graph – Prop Coeff
TUTORIAL EXERCISE
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Preform a preliminary resistance prediction using Navcad for the model that will
be used in the open resistance lab this semester. Plot RT vs. V and CT,CR,CF vs.
Fn for the prediction. This can be compared to the values predicted in the lab
later. Use the following data to inform your prediction.