Fundamentals of Resistance & Propulsion (with NavCad)

Mark your calendars for June 17-18!!

Join us for a 2-day NavCad Training Seminar - Fundamentals of Resistance and Propulsion (with NavCad) - in Seattle, Washington, USA on Thursday and Friday, June 17-18. The cost of the seminar is $795.00, with discounts available for additional company members.

Course description 

This professional development seminar will be in two parts, and is suitable for all levels of experience with NavCad. All participants will receive a course packet with the seminar curriculum, as well as a variety of reports and resources.

We begin with a general discussion of fundamental principles of resistance and propulsion, then build an understanding of more advanced concepts (such as dynamic performance), and continue on the second day with general training in using NavCad effectively - including the newest features and capabilities of NavCad 2004 . At the conclusion of the seminar, there will be ample time for participants to present and discuss some of their current projects.

Refreshment breaks and boxed lunch are provided each day.

About the presenter

Conducted by Don MacPherson, HydroComp's Technical Director, our professional development seminars are an outstanding value. You will leave with a solid understanding of the new NavCad 2004 and its underlying hydrodynamic principles, and be better able to conduct successful studies for your clients and customers. These two days will help you not only minimize the risk of inaccurate speed and power prediction, but you will learn how to analyze a project and be in a position to provide reliable answers.


Day 1 - Fundamentals of Resistance and Propulsion

Morning Session 9:00a-12:00n

Part 1. Introduction
   - Steady-state performance
    - Hull and propulsor
    - Engine and propulsor

Part 2. Hull Performance
   - Resistance and hull-propulsor interaction
   - Bare-hull resistance - Froude/Ct and planing
   - Catamaran resistance prediction
   - Added drag - appendages, seas/wind, shallow water
   - Prediction of resistance - model tests, parametric analysis
   - Definition of parametric hull data
   - Correlation to actual test or trial performance
   - Prediction of hull-propulsor propulsive coefficients

Part 3. Propulsor Performance
   - Propulsor options - propellers, waterjets
   - Propeller nomenclature and parameters
   - Propeller performance - principles, cavitation, series
   - Waterjet nomenclature and parameters
   - Waterjet performance - principles, published data
   - Additional propulsor possibilities
   - Comparative propulsor summary

  Day 2 - Effective Use of NavCad

Morning Session 9:00a-12:00n

Part 8. Introduction to NavCad 2004
   - Documentation
   - The NavCad interface
   - What's new in NavCad 2004

Part 9. Example calculation session
   - Data libraries
   - Resistance prediction
   - Propulsion analysis
   - Propeller sizing
   - Reports and graphs
   - Data import and export

Part 10. Special topics
   - Predicting drag of catamarans
   - Correlation to model tests
   - Waterjet performance modeling



Afternoon Session 1:00p-5:00p

Part 4. Diesel Engine Performance
   - Engine data and parameters
   - Definition of the "performance envelope"

Part 5. Propeller Sizing
     - Overview of propeller sizing process
     - Choosing suitable propeller characteristics
     - Sizing design objectives
     - A systematic propeller sizing technique

Part 6. Steady-state Equilibrium Propulsion Analysis
     - Hull-propulsor equilibrium (free-run)
     - Engine propulsor equilibrium (towing)
     - Applying typical criteria to evaluate results
     - Cavitation criteria

Part 7. Dynamic Performance
   - Acceleration, dynamic positioning
   - Integrated hull-propulsor-engine physical model
   - Torque-driven solutions - engine-focused

Afternoon Session 1:00p-5:00p

Part 11. Case Studies
   - Patrol craft with waterjets
   - Tankers
   - Acceleration analysis

Part 12. User's Projects
   - Creation of data
   - Project strategies
   - Analysis and review of results

General Q & A (as time permits)
   - Open review of questions


The training seminar takes place on June 17th and 18th, 8:30a to 5:00p each day. To ensure personal attention, this seminar has been limited to twenty participants . Contact us early to reserve your place.


The training will be held at the Hampton Inn Southcenter in Seattle, WA. This conference facility provides hotel, wireless meeting room and convenient, free airport shuttle service. More information about the Seattle area may be found on

Hotel accommodations 

The Hampton Inn Southcenter is located on 7200 South 156th Street, Tukwila, Washington. Hotel accommodations can be made directly with the "Hampton Inn Southcenter" via phone or fax. From Canada or the US call (425)228-5800, and be sure to mention "HydroComp" when reserving your room to receive the $89 (plus tax) rate. You may also fax your reservation to (425)228-6812. The room block and special rate will be released June 8.

Major airline service is available through the Seattle Tacoma International Airport. Courtesy shuttles from the airport to the hotel are provided by the Hampton Inn. Private transportation may be arranged independently.


Attendees will need only a basic knowledge of the operation of NavCad. We highly encourage every attendee to bring a notebook computer with NavCad already installed. Also, don't forget your security key.


The cost of the seminar is $795.00, with discounts available for additional company members. A 50% deposit is required before June 8 to reserve your place, with the balance paid-in-full before the seminar. (The deposit is non-refundable after June 8.)

How to register

  1. Print out the Training Registration Form page.
  2. Fill in the information, and fax or mail it back to us with your payment
  3. .

For more information, please contact

Stephanie McArdle
HydroComp, Inc.
13 Jenkins Court, Suite 200
Durham, NH 03824  USA
Tel: (603)868-3344
Fax: (603)868-3366

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