Check out the rudder and stingers I built for my SprintCat 40 build.
The stingers are built short and close to the tunnel.
They have a little negitive angle machined in, to keep the bow down.
The prop shafts run in 3/16 inch lead teflon bearings.
The rudder is totally home built and very "tight" -- no wiggle in the bearings.
I built a long lever arm on it to give the servo good leverage.
The wires are .050 inch stainless steel and are silver soldered into their screw pins. The wires run through close fitting brass bushings to keep the water out.
The rudder extension was cut from a 2" wide X 1" tall X 7" long. 6061 aluminum block.
Mark
The stingers are built short and close to the tunnel.
They have a little negitive angle machined in, to keep the bow down.
The prop shafts run in 3/16 inch lead teflon bearings.
The rudder is totally home built and very "tight" -- no wiggle in the bearings.
I built a long lever arm on it to give the servo good leverage.
The wires are .050 inch stainless steel and are silver soldered into their screw pins. The wires run through close fitting brass bushings to keep the water out.
The rudder extension was cut from a 2" wide X 1" tall X 7" long. 6061 aluminum block.
Mark
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