PSModel
                                     from ATLJsoft LLC

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Welcome to PSModel by ATLJsoft.

PSModel is a software application which aids in the selection and evaluation of marine propellers for small and large vessels, both commercial and recreational.  It transforms each included Propeller Series from an arcane technical reference, normally used by a Naval Architect, into intuitive tools that can be easily used by boat owners and marine professionals alike.  With these tools, PSModel can approximate the thrust produced, torque absorbed, and horsepower required for a wide variety of propeller geometries and operating conditions.

For the boat owner, PSModel includes instructions on how to perform boat powering tests with only a stopwatch and tachometer, and provides examples of how test data is used to look at -- and possibly improve -- powering performance.

For the marine professional, PSModel offers the ability to solve advanced propulsion problems with minimal effort and time.

J vs. Kt, Kq, and Eff.

Main screen of PSModel showing graph of J versus Kt, Kq, and Efficiency.

MPH vs. HP

Main screen of PSModel showing graph of boat speed versus Horsepower.

Look Inside PSModel for in-depth information on what it offers.