ok What we have here is a failure to communicate.
Enough silliness
This is the hull of Bluenose. It is going to require a 71 cm fin length and 6.7 kilograms of bulb ballast to balance the weight and pressure on the sails. That black line is 12mm steel threaded tube. it passes through the bottom of the keel to be supported and braced on the inside. The hydrofoil will be formed around the black tube which will have the ballast bulb bolted to the end of the tube
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This is the hull of Bluenose. It is going to require a 71 cm fin length and 6.7 kilograms of bulb ballast to balance the weight and pressure on the sails. That black line is 12mm steel threaded tube. it passes through the bottom of the keel to be supported and braced on the inside. The hydrofoil will be formed around the black tube which will have the ballast bulb bolted to the end of the tube
Side view of ballast fin main spar
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Here is what Gary Webb said about RC model boat rudders versus their full-sized ones.
“ departure from "scale realism", is a compromise in the interest of the model's steering performance.
The deep rudder works in stronger winds and choppy water better…”
I have found a need to alter the rudder size too from the original.
Internal view of hull with tube. Still in dry fit stage, no bracing yet
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RON
Given the size of the rudder on the little RG65, that is definitely under consideration. Bluenose is about 8 times the size of the RG's, but the scale rudder is only twice as big
Given the size of the rudder on the little RG65, that is definitely under consideration. Bluenose is about 8 times the size of the RG's, but the scale rudder is only twice as big
I would at least double the area of the rudder as an angled rudder is not as effective as vertical one.
I have a 40 inch long Americas cup model yacht and have done that, and going any further does not help.
The problem lies in the heel angle of the yacht as anything more than 20 degrees you have almost completely lost all directional control. The rudder is angled at about 40 degrees and if you go beyond 20 degrees heel the rudder is acting (as on an aircraft) more like the elevator giving up down control. Turning to the right will have the rudder forcing the bow down.
You will have to sail the model as upright as possible adjusting or removing sail area to accomodate this.
