Rudderless twin cat

[mattf1000]

Has anyone tried to build a rudderless twin cat to reduce the drag of the rudder. I was thing of using a mixer unit to control the motors. What do the experts think. Could more speed be obtained.

[tlandauer]

At very slow (toy speed) pace it may work, the differential torque is not going to turn the boat effectively at the FE speeds we are constantly dealing with. Additionally the rudder serves another purpose and that is to provide stability especially during turns. Some hulls ( like MeanMachine and the Cheetah ) will dictate a longer rudder otherwise it is prone to spin out. No matter how much you think the drag is hampering your performance, the rudder is your friend.
Just my opinion.

[grsboats]

A good straight and sharpened rudder will not produce the supposed amount of drag and yes it's a must in a twin cat....don't forget to invest in a good servo too.Gill

[srislash]

I have tried that mixer route, with rudder as when turning large props a hull does want to stay straight. Some success but it is hard on things. Controllers, and connectors in that you are changing the loads on each side of the hull. This shall be implemented and played with again on my R-42 build.