I just got the new Tunnel Boat Design Software Version 6.4. It is totally awesome. It is even easier to use and get results. It has a great new function I thought every one who is interested in making there boat faster or making a boat from scratch should know about. It now can calculate open deck boats, like Mirages, STV and Hydrostreams, more accurately. It is set up to take all the dimensions of an opened deck boat or capsule. For those of you that don’t know this software enables you to design tunnel boats and run multiple tests finding velocity, top speed, acceleration and power requirements. You actually build the boat with the software and run all the tests. I put my boats into the computer and run the tests, the top speeds calculated were with in a couple of miles an hour of what they actually run. There is nothing more fun than using this software.