Advanced Aerodynamics and Hydrodynamics for Powerboats

Performance Boat design and setup secrets for Recreational tunnels, Offshore Cats, Racing tunnels, Fishing/Utility hulls, Vee and Vee-Pad Hulls, Bass Boats
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  About TBDP | Features | How it Works | Design Inputs | Screens | VBDP | Testimonials | Mag Reviews | Updates | Order  
  The Tunnel Boat Design Program (TBDP©) is a PC-based computer program that makes the analysis and design of tunnel hulls, power catamarans, modified tunnels, vee hulls and vee-pad hulls extraordinarily fast and simple. The TBDP© incorporates the same design approach as documented in the Secrets of Tunnel Boat Design book (©1982-2010), including detailed calculation methods that are the key to proper Tunnel hull design.

The User can quickly: predict maximum speed and hull performance for the complete hull velocity range; optimize hull design and setup for specific operating expectations; test hull modifications with the software for expected performance BEFORE changing the boat; design new hulls for optimum performance; analyze performance characteristics in detail, including dynamic balance, all hydrodynamic and aerodynamic Lifts & Drags, HP requirements, trim angles - even porpoising analysis; compare performance of old design with new design with on-screen graphics. TBDP© takes the dramatic costs and expensive time delays out of traditional "trial-and-error" design processes.
tbdp_displaybox_small.gif (13061 bytes) What's new 12/07/17
*TBDP© Version 6.5 reviewed by Scream & Fly magazine.  Check out the review at the S&F site, or dload your own copy.

** Check out the manual of TBDP 'boat design input' data.  Four full input screens, with over 60 input variables, for very precise control of your design and setup.

** Get a FREE Video of the TBDP in operation.  See the features, screens, performance graphics.

** Check out magazine reviews of TBDP software in Hot Boat (USA) magazine.

** Check out magazine reviews of TBDP software in Raceboat Int'l  (UK) magazine.
Excellent for any size of boat - Sport tunnel, Offshore catamarans, Circuit racing tunnels (F1 / IOGP), Ocean racers (OPC) or Recreational tunnels, including modified tunnel (Mod-VP), modified Vee style hulls, vee hulls & Vee-Pad hulls, even RC performance models. Size, speed and setup conditions are all accounted for by the software.  TBDP principles perform for all types and any sizes of tunnel hulls/catamarans/modified vee hulls and vee-pad hulls. [see who uses TBDP©]
  The TBDP© also provides Vee Hull and Vee-Pad hull design & performance analysis, including dynamic stability and Porpoising analysis.  Full performance analysis; one-button click that automatically changes design configuration to reflect the simulation of a Vee hull or a Vee-Pad hull. Key dimensions are automatically changed to reflect the simulation of a Vee hull or a Vee-Pad hull.
  The TBDP© provides a fast, detailed method for the tunnel boat designer, builder, owner or driver to generate a total performance and design analysis. The TBDP© makes it easy for the designer to clearly predict the effect of any individual or group of design change(s) on the ultimate performance of the hull. 

The software is not a fancy graphic or drafting-aid package. It is a proven, engineering design/analysis program that presents predictive performance results in easy-to-read, comparative-style format, on any Windows-compatible PC system.
The TBDP© generates detailed performance Reports, showing complete performance measurements of hydrodynamic Lifts & Drags, aerodynamic Lifts & Drags, forces & coefficients, dynamic stability, center of pressures, acceleration, elapsed times - even a unique Porpoise AnalysisPerformance reporting is done NOT just at one selected speed, BUT for ALL velocities throughout the full operating velocity range of the hulls operating performance range.  Data Reports make it easy to compare design changes, whether complex or simple changes, illustrating the regions of performance that are better or worse. Graphic Performance output is also presented for an easy visual review of all performance characteristics.
The TBDP© allows for unlimited variations of tunnel hull designs stored in individual files. All design data dimensions and performance requirements for each design configuration are input to "free-form" data-entry screens, and can be easily changed. Predictive performance results are calculated with the same procedure as outlined in the Secrets of Tunnel Boat Design© book, using special complex algorithms. Many essential performance indicators such as "angle-of-attack", "wetted surface", "power ratings", "acceleration", "elapsed time" and "dynamic stability" relations are determined for specified velocity ranges. Complex design features such as different aerofoil shapes, sponson pad "steps", open cockpit or enclosed "capsule" cockpits or even "cuddy cabin", multiple power trains, and Mod-VP style centre-pod hull designs, can be implemented easily into the analysis. Even effects of geographic altitude and the differences of salt and fresh water are included. The resulting effect on all performance characteristics of even small dimensional or operating changes can be seen quickly.
 Professional features include On-Line Help Screens, Design File Management with Save, Add New, delete and Copy File, and data file printing to any Windows supported printer.

 Results can be easily analyzed with the powerful on-screen-graphic presentation. All of the essential performance indicators are presented in engineering graph format, for your full velocity range, showing the trends of these important indicators throughout the range of operation.

 Detailed results can be saved to individual design files, or can be printed in Design Performance Reports output for further review, comparison or documentation.

    System Requirements:
Here are the system requirements for using the Tunnel Boat Design Program TBDP©:
Computer: PC Pentium, or other 100% Windows compatible
Disk Drives: CD ROM drive, preferably 4X or greater (for installation); and sufficiently big hard disk drive. The TBDP© program requires approximately 75 MB to install and minimum 45 MB of permanent disk storage space.
Memory: 35MB of available RAM
Video: 800 X 600 screen resolution is best. If you don’t have your screen display set at this resolution, you can go to the "Control Panel", "Display", and change the resolution there.
Graphics Adapter: VGA monitor compatibility. A high performance graphics card and driver is preferred, to take best advantage of the TBDP© "Picture Perfect" graphics driver.
Operating System: Windows WinXP/98/98se/Win2000/WinNT/
Sound Card: SoundBlaster (SB16) or equivalent sound card is best to take advantage of the TBDP© sound playing capabilities
Printer: Any Windows compatible printer can be used, color is best (to take advantage of TBDP© report features)

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about Jim Russell

secrets_of_tunnel_boat_desi.gif (53x73 -- 21190 bytes)13th edition
"Secrets of Tunnel Boat Design" book!
history_sm.gif (53x73 -- 6480 bytes)"History of Tunnel Boat Design" book! "Secrets of Propeller Design" book!

"TBDP Version 8" Software                     "VBDP Version 8" Software                      "PropWorks2" software

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