Bill cool on the DN iceboat sailing! I had one chance in the late 70’s when I lived in the upper Midwest to iceboat and Mother Nature hosed it. As you know the ice has to freeze level and that is not always the case. Those ice speed bumps can crash you at 50+ mph and the snow can’t be very deep. The Ice was finally thick enough and level then it snowed like hell that night. It was right about the time I moved to Florida so I did not wait around for another chance. I’d like to Iceboat before my final chapter is written. Do you have connections in the Iceboat world? I almost moved to CT with Pratt & Whitney about 10 years ago. I quit instead to stay down here.

The TMS-20 (The Man Shed 20) tri is built to fly on one ama. That is why the ama is almost the full length of the main hull it is about 19’ loa, 14” beam, has a slight rocker, and each ama has a rudder and board. Each ama is about 6 feet from main hull on the respective side. The main hull does not have a rudder or board. The flair I added to the beam of the main hull is above the waterline to give about 32 inches of wiggle room but no additional wetted surface on the hull. For those that are the engineer types the two connecting beams need to support 850 lbs. What would I need to have in Carbon Fiber for that type of stress?

I noticed the Multi23 has a swing keel and main hull rudder. You can’t fly that too high and I’m sure that has a lot of drag. The TMS-20 design had the rudder and board in the center hull in the original design and it was found to have too much drag, so it was moved to the hulls “cat” style.

Let me apply the Reynolds, Jake, and My theory. And the hell of it is they all make sense to me! Where is Bill Roberts when I need him?

Reynolds - Narrow beams less wetted surface. (Also better parking)

Jake – Additional Leverage more speed (this is where the 17’ beam comes in play plus say a crew on the wire.)

My thought – Down wind speed flat, fast, and hopefully enough buoyancy w/ three hulls.

Update Team Cyberspeed SuperCat 20 almost made it in the water today. It is about 30’ short. It is under the bridge on the launch beach at Singer Island. We had a problem with the re-welded alignment pins holes in the main beam - the tolerance was too close. Tomorrow we will have it fixed. The weather lady lied today anyway. Sunday should be a bit nicer for a shake down sail. The beer cooler we built in the hull worked great!

Later,

Mike