Originally posted by HBjet:
GasTurbine, on this test, what where the water conditions? Did you test the 40mph boat with the rudder first, and then without? Also, on the 120mph boat, what were the conditions, and how did you conduct this test? If it was at a drag racing event, what was the reaction, ET, and MPH of both passes?
I'm not saying you didn't do these tests, but I am saying just be removing the rudder you are not going to notice a difference in MPH. Now, like you posted, if you add a Large rudder to your 120mph boat there was a 4mph drop in speed. One question, why would you have a Large rudder on a boat like that anyway?
I'm not trying to start anything with you, I just think your results have another variable in the equation which you didn't account for and I don't want everyone thinking there rudder creates so much drag to where they would notice a difference in top speed if it was removed.
HBjet
Im not going to individualy list the hundreds of tests we have performed on jets boat from 1968.
And yes...top speed will be affected by the addition of a rudder. A GPS only confirms what we have known since the early 70s. We can put any size rudder we want, on any boat.
You dont want "everybody thinking"? Sorry if the truth hurts...but rudders do in fact create more drag, and affect top speed. How can you even argue it doesnt? Do you just think that you can stick anything into the water from your boat, and it wont slow it down? Tell us HB...if your sure a large rudder wont affect top end...where is the line drawn? Can I still go 150 if I leave my trailer attached to the bottom of the boat?