A technical feature comparison of HydroComp's speed & power software.
 
 Rev: February 09, 2010
The following table provides a brief technical feature comparison of HydroComp's three speed & power design and analysis software - PropExpert, SwiftCraft and NavCad.
 
 = full feature set
 = limited feature set
 
Program PropExpert SwiftCraft NavCad
Typical user Propulsion vendors Designers & builders All vessels
General vessel size (for guidance only, no limit is imposed) Under 50 m (150 ft) Under 75 m (250 ft) Unlimited
Displacement, semi-displacement and planing monohulls Full Full Full
Catamarans     Full
Resistance prediction   Full Full
Propulsion sizing Full Full Full
Propulsion analysis Reduced Full Full
Bare-hull drag prediction methods N/A 27 37
Resistance prediction options   Reduced Full
Correlation to sea trials or model tests Reduced   Full
Added drag prediction   Reduced Full
Propulsion system sizing Full Full Full
Size diameter, pitch, BAR Full Full Full
Size gear ratio Full Full  Full 
Sizing by thrust   Full Full
Sizing by power Full Full Full
Propulsive coefficient prediction Reduced Reduced Full
Propulsor types 4 3 10
Open propellers Full Full Full
Ducted propellers Full   Full
Surface-piercing propellers     Full
Cycloidal propellers     Full
Controllable-pitch propellers     Full
Waterjets     Full
Free-run analysis Full Full Full
Towing analysis Full   Full
Acceleration analysis     Full
Spreadsheet revision     Full
Hull form drag reduction guidance   Full Full
Model test data management     Full
Engine data management Full Full Full
Propeller data management Full Full Full
Gear data management   Full  
Waterjet data management     Full
 
 
 

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