Hi All,
I have been following this forum for a couple of months and have searched old threads but could not find related topics.
Back in the 80's I bought four Dumas HotShot .21. The fiberglass tunnel, I believe, was the next generation after the original blunt nose Hot Shot. I have built only one and the other three are still in their original boxes. I understand this tunnel hull is very outdated but I am not a serious racer and I would be happy with a sport boat with decent performance.
Can you share your experience on this boat? What is the best set up (prop, engine height and angle etc)?
Also, what dictate the top speed potential of a tunnel hull other than engine power? Is it hydro/aero dynamic? Can this hull be modified in some way to be competitive? It has a tendency to blow over even with about 3degrees of negative angle and 4oz of lead at the nose. I am wondering if making the tunnel shallower would help.
Thanks,
Kez
I have been following this forum for a couple of months and have searched old threads but could not find related topics.
Back in the 80's I bought four Dumas HotShot .21. The fiberglass tunnel, I believe, was the next generation after the original blunt nose Hot Shot. I have built only one and the other three are still in their original boxes. I understand this tunnel hull is very outdated but I am not a serious racer and I would be happy with a sport boat with decent performance.
Can you share your experience on this boat? What is the best set up (prop, engine height and angle etc)?
Also, what dictate the top speed potential of a tunnel hull other than engine power? Is it hydro/aero dynamic? Can this hull be modified in some way to be competitive? It has a tendency to blow over even with about 3degrees of negative angle and 4oz of lead at the nose. I am wondering if making the tunnel shallower would help.
Thanks,
Kez