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Fine Tuning For The Future
An Evaluation of Aeromarine Research's Tunnel Boat Design Program
Article and Test by Greg Terzian and Helmut Freitag
Photos by Greg Terzian

With winter fast approaching, boaters’ thoughts turn to winterizing and the dull, boat-less months ahead.  It is during these months that we take the time to reevaluate our rigs, and think about changes for the next season.  Many of us think of ways to extract every last ounce of performance from our rigs as we wait for the warmer weather.

Fortunately, if you own a tunnel boat, Aeromarine Research has a way to use this downtime very productively.  Their Tunnel Boat Design Software can turn the winter into the perfect time to optimize or design your tunnel boat configuration, all without leaving your home.  The Tunnel Boat Design Software promises to help you optimize the performance of your tunnel boat – off the water.  Now, that’s a pretty impressive claim.  So, first we’ll look at how the software works, and then we’ll see how well its results compare to real life performance.  Even if you’re one of the lucky few that lives in a climate that permits year-round boating, this software will prove very valuable – after all, how else can you test such a huge variety of performance enhancing features without breaking the bank?  Essentially, this software allows the tunnel boat enthusiast to alter a ‘virtual model’ of their current hull, or create an entirely new design and see the results of your changes in real time as you alter each of the many hull variables.  The power of the PC can now be leveraged to offer insights into your hull configuration never before possible with such ease and accuracy.

Test Subject:  Lightweight STV Euro / stock Mercury EFI 260.  Our test hull features a non-stepped ski bottom.

Aeromarine Research’s Tunnel boat Design Software is used by professionals and individual high performance enthusiasts worldwide to improve the performance of their tunnel boats.  The program uses three different methods of optimization to generate predicted performance results: angle of attack optimization, power optimization, and velocity prediction.  After you input the data on your boat, the program makes all the necessary calculations to predict actual performance.  As you optimize each factor, the remaining two are set as constants.  Optimizing for each factor will give you a huge amount of critical information on everything from actual hull design to high-speed stability.  Normally, it would take an enormous amount of time and dedication to acquire this information – even learning all the background theoretical knowledge would take quite some time.  Aeromarine has taken their years of experience and knowledge and put them all together in this program. The Tunnel Boat Design Program is used by pros and individual enthusiasts alike - the program is very straightforward and includes a great deal of support for all types of users.

Left: Where to begin: The splash screen features help, the tutorial wizard, and start.
Middle:
Design File Selection screen, where you manage your designs.
Right:
Quick Start Wizard walks you through the data input and analysis process.

The program begins with its four “Design” screens.  Each screen has a wealth of parameters to assign and adjust in the quest for more speed.  These are the places where you can experiment with actual hull design, set up, and much more to see which changes will result in better performance.  Thanks to Aeromarine Research, you no longer have to spend hours with complex calculations and confusing formulas.  You can also be spared costly “trial and error” alterations that can damage your boat or result in more downtime.  After all, would you rather spend hours experimenting with and testing motor height, for example, or spend just a few minutes entering data so that the software can help you predict the optimum placement?

Left:  Boat Data Input screen - basic hull data goes here.
Middle:
Larger view of illustration to aid in measurement accuracy.
Right:
Weight and Measurements screen.

The first Design screen is the “Boat Data” screen. On this screen, you enter figures for the hull design - tunnel and pad height and width, number of steps and their length, and pod measurements. A note to non-North American users: all measurements are Standard, so if your measurements are metric, you’ll have to convert them. The screen also has a useful picture with the different measurements labeled, so if you’re not sure what the “Pad Deadrise” is, a glance at the picture will show you exactly what to measure. There is also a detailed User Manual and on-line context-sensitive help manual that explains each of these design parameters in detail.

The second Design screen is the “Weight/Measurement Data” screen. This is where you’ll put in figures like total boat length, and motor length and height. You’ll also assign values to boat weight, motor weight, fuel weight, and even driver weight. Like the Boat Data screen, the Weight/Measurement Data screen includes a diagram that shows the listed measurements

 

     

 

Article Information

Aeromarine Research presents the tunnel boat enthusiast, designer, and racer with a software package designed to allow never before possible design analysis of tunnel boat hulls.
 
Created:
September 23, 2001
 
By:
Greg Terzian
Helmut Freitag
 
Category:
Product Evaluations
 
Manufacturer Website
aeromarineresearch.com