How to set up a tunnel hull?
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How to set up a tunnel hull?
Ok...here is the deal...my friend has a top speed II...I have a dumas hotshot 21 glass...(wow it was a good hull back in the 70's...lol)...it has a short fin k&b on it...he wants to race...ok..he is a old guy that is really jittery...so at least I have a chance....but I have forgotten how to set this boat up!(am getting old)... So...I remember that the vertical setting of the engine was one parameter that was critical...(and I still have marks on the mount so I have a pretty good idea where this should be)...I also know that we (dad and I) worked on the cg of the boat to get it to run well...(we had put in a weight box in the front of the boat)....so I can play with this some
But I also remember that the boat would "hook" badly...! We tried turn fins and such and I can't remember if they helped. Do they? How about trim tabs and such? Any new stuff or ideas to come along that might help me at least get her around the lake without too much embarassment...(lol). Am kinda at a loss since I have been a non boater for a couple of years..(ok have been flying but haven't been boating except for running the top speed 4 or 5 times since about 1980.
thanks
Steve
But I also remember that the boat would "hook" badly...! We tried turn fins and such and I can't remember if they helped. Do they? How about trim tabs and such? Any new stuff or ideas to come along that might help me at least get her around the lake without too much embarassment...(lol). Am kinda at a loss since I have been a non boater for a couple of years..(ok have been flying but haven't been boating except for running the top speed 4 or 5 times since about 1980.
thanks
Steve
#2
RE: How to set up a tunnel hull?
your best bet on getting good info on this would be to send a PM to either Jerry Dunlap or OB Nut. They are prebably two of the best in the hobby
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RE: How to set up a tunnel hull?
We also have un-official threads for the 3.5cc tunnels and 7.5cc which may have pictures illustrating what information you need. An RCU search will dig these up.
Ryan
Ryan
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RE: How to set up a tunnel hull?
Some of the people in the Wichita club should be able to help you too. http://www.wrcpbc.org/