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INTRODUCTION TO NAVCADTUTORIAL

May 2017

Doug Smith

ENGI. 4011 www.mun.ca

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.