Join us for two half-day educational sessions on propeller selection, sizing, and troubleshooting!

Instructor: Donald MacPherson, Technical Director HydroComp
Schedule: Date and Location to be determined

The Mini-Workshop is a special version of HydroComp’s intensive Propeller Workshops for those involved in the design, construction, and operation of workboats. Two different easy-to-follow half-day sessions will speak to Successful Pre-construction Propeller Selection and Documenting & Troubleshooting Post-delivery Performance.

Who should attend the Propeller Mini-Workshop?

The Mini-Workshop was developed for anyone involved in the design, construction, operation, or management of workboats (or other similar craft), as well as for suppliers of propulsion equipment. The Workshop is ideal for:

  • Naval architects and designers,
  • Boat builders and repairers,
  • Owners and operators,
  • Propeller builders and distributors, and
  • Engine and transmission companies.

What is the curriculum?

The two half-day seminars will focus on topics for pre-construction design and post-delivery operation:

  • Successful Pre-construction Propeller Selection (including principles of marine propulsion and initial propeller sizing)
  • Documenting & Troubleshooting Post-delivery Performance (including boat test analysis and troubleshooting propeller problems)

See the Curriculum agenda below for more details.

Can I attend both sessions?

Of course! Register for both sessions and receive a discounted registration and complimentary lunch.

Is this software training?

The Propeller Mini-Workshop is not software training. Computers are not used by participants during the sessions. However, the instructor will use the HydroComp PropExpert® software to illustrate how some of the concepts and principles are applied in computer software.

Course materials

Participants will receive a course workbook.

About the presenter

The workshop is conducted by Donald MacPherson, HydroComp’s Technical Director. A frequent speaker to conferences, technical societies and trade groups, Mr. MacPherson is a graduate of Webb Institute and author of many noted journal articles and technical papers on ship propulsion and propeller performance. He is also the Instructor of Naval Architecture in the Ocean Engineering Department of the University of New Hampshire.

Who should attend the Training Course?

The course is ideal for any professional involved in the design, construction, service, or supply of marine propulsion equipment. Users of HydroComp software are particularly encouraged to attend.

How do I register?

Contact HydroComp here to request the latest training schedule or to schedule a training seminar.

To ensure personal attention, the Workshop is typically limited to twenty participants per session.

For more information, contact

HydroComp, Inc.
Tel: (603)868-3344


Successful Pre-construction Propeller Selection

Typical sessions scheduling:
» Morning session 08:30-12:00
» Registration at 08:00

Principles of marine propulsion

This is where participants are reacquainted with the principles of marine propulsion for inboard propellers for workboats (and other craft). Includes:
» Propulsion system relationships;
» Influence of the engine;
» Performance of propellers;
» Definition of propeller characteristics.

Propeller sizing

This topic discusses the successful sizing of a propeller’s principal parameters (diameter, pitch, blades, blade area), and proper matching to engine and gear ratio. Includes:
» Selecting the proper propeller style;
» Considerations of engine performance;
» Influence of cavitation and hydroacoustics;
» Achieving a successful propeller sizing match to the boat, engine and transmission.


Documenting & Troubleshooting Post-delivery Performance

Typical sessions scheduling:
» Afternoon session 13:30-17:00
» Registration at 13:00

Analyzing boat test data

Appropriate evaluation of boat test data can illuminate how the boat is really performing. We will follow the story of a boat that did not perform as expected to see how information from a boat test can be analyzed to expose what really is happening. Includes:
» Analysis-friendly boat test data;
» Conducting an “overload” test;
» Comparing propeller and engine power;
» Identifying system efficiency;
» Confirming cavitation.

Troubleshooting propeller problems

Many of the most common inboard propeller problems have solutions – but you first need to identify the nature of the problem. We will review common problems and their potential solutions, as well as look at a case study that illustrates how most propeller problems are not actually caused by the propeller. Includes:
» Engine loading;
» Nozzle and propeller thrust breakdown;
» Cavitation;
» Effects of high shaft angle;
» Noise and vibration;
» Propeller singing.