Slowly I am psyching out the Kitchen rudder with help from several posts above. Thank for those comments from Gerald, TonyH , and Mrzippy. My thought that may have been port and starboard rudder posts was close, but still off the the mark. (but it might work) I see the comments and now closer look at drawing and I see the drawing plan is correct, there are two servo arms each operating a rudder half, (one above the other in the plan and elevation) and the posts are co-axial. There is a mixer box added, I also had missed that! So yes nowadays the mixer function is likely inside the radio used for V-tails airplanes.
So connecting the rudder blades to the two posts is an interesting challenge. The rudder half which is attached to the center post (3/32") can be soldered at the bottom of the post, but must have a 1/8" clearance hole at the top so it can swing around the other rudder's tube (1/8" tube on drawing). The rudder half that is mounted to the 1/8" post can be soldered at top and bottom, and this rudder must fit inside the other rudder when the Kitchen rudder is made up, Now one servo operates the 3/32 post, the other servo operates the 1/8" tube and they swing independently. Whew.
Now with the mixer, this is very clever I thought, the two rudders can work in parallel for steering, or if the aperture between the rudders is closed at the front, this will slow the boat down, and best of all, if the aperture between the rudders is closed at the back, the rudder becomes a thrust reverser and will make the boat back up. So all this on the right stick of the radio, how neat is that.
Clearly many readers understood this from way back, and for them I state the obvious. But for this old dog this is a new trick and I think now I understand it.
Now I am wondering about the kitchen sink?
-Carl
-Carl
