Technical Reports

Enhance your knowledge with these reports from HydroComp.

Publications

The following are HydroComp technical publications and articles:

• MacPherson, D.M., "Sea Trial Analysis: The Value in the Data", International Boatbuilders' Exhibition & Conference (IBEX), 2003 [PDF]
  
  
• MacPherson, D.M., "Case Study: Application of NavCad to the Design and Optimization of a Waterjet-Driven Patrol Boat", HydroComp Report, Nov 2002 [PDF]
  
  
• MacPherson, D.M., "Special Performance Considerations for Boats with Electronic Control Engines", International Boatbuilders' Exhibition & Conference (IBEX), 2001 [PDF]
  
  
• HydroComp, Commercial Propeller Specifications, compiled 2001 [PDF]
  
  
• MacPherson, D.M., "Selection of Commercial Waterjets: New Performance Coefficients Point the Way", SNAME New England Section, Feb 2000 [PDF]
  
  
• MacPherson, D.M., "Small Propeller Cup: A Proposed Geometry Standard and a New Performance Model", SNAME Propellers/Shafting '97 Symposium, 1997 [PDF]
  
  
• MacPherson, D.M., "Ten Commandments of Reliable Speed Prediction", Small Craft Symposium, Univ. of Michigan, May 15-17, 1996 [PDF]

White Papers

The following are links to focused reports on various subjects:

Prediction techniques

• 136 - Correlating Michigan Wheel Cup Gages
• 133 - IDF Hull Data Transfer Format
• 130 - Tips for Predicting Speed with PropExpert
• 128 - Applicability Range of Holtrop-1984 Method
• 127 - Modeling Tractor-style Azimuthing Podded Drives
• 120 - Predicting Resistance and Power for an Integrated Tug/Barge Using NavCad
• 118 - Analysis of Vessel Acceleration with NavCad
• 117 - Analysis of Dissimilar Engine-Gear-Propeller Systems with PropExpert
• 116 - Validation and the Use of PropExpert for Small High-speed Powerboats
• 108 - Validation and Testing of Performance Prediction Algorithms
• 105 - Predicting Catamaran Resistance with NavCad
• 104 - An Evaluation of Tanker Resistance Prediction Accuracy in NavCad
• 103 - Comments on Reliable Prediction Accuracy
• 101 - Correlating Propeller Performance with Kt/Kq Multipliers

Propeller performance

• 138 - Singing Propellers
• 137 - The Three Modes of Cavitating Performance
• 135 - Blade Area Ratio Defined
• 134 - Predicting the Inception of Ventilation
• 132 - Correlating K_T/K_Q for Symmetric-section Propellers
• 129 - Simplified Prediction of Propeller Inflow/Outflow Properties
• 112 - Root Cavitation on Small Commercial Propellers
• 111 - Cavitation on Small Commercial Propellers
• 107 - Propeller Characteristics for Torsional Analysis

Propeller CAD and modeling

• 131 - Practical Propeller Modeling: From Concept to 3D CAD Model
• 125 - Approximating a Fillet Radius Onto a Cylindrical Hub in PropCad
• 121 - Definition of Section Offsets in PropCad

Vessel operation

• 126 - Demonstrating the Effect of Vessel Weight Change with PropExpert
• 124 - When Does Shallow Water Become a Problem?
• 122 - Typical WorkBoat Rudder and Propeller Placement
• 113 - Minimum Planing Speed
• 110 - Bollard Pull