Hey everyone. Your fellow amphibious vehicle lover Mighty MaxIV Has patents on what I believe to be the world's most efficient internal combustion engine. I have spent many years of my life trying to develop this design. Because of work, writing (I just released my first book) and other developments I have put the design and development of this engine on the back burner. I have finally decided to get this process moving forward again so I have posted some videos of my design. They might be especially interesting to Whipper and BW6. If you watch the first video you will understand the sealing process used in my rotary engine (you need that information to understand the combustion cycle). The second video will take you through the combustion cycle. If you or anyone else you know would be interested in the development go to my web site "The Bedel Biased Option" Web site of Author Daniel J. Edwards - Home and contact me. I estimate that this ten cubic inch engine with a six inch rotor will pump out over 120 horse power. Thanks for watching DAN.