|38 tons 54 Ft. Length||Maximum Vessel size:||12 tons 42 ft. length.For larger vessels, increasing the dimensions of the auxiliary rudder should be considered.|
|18 KG||Weight||38 KG|
|Main rudder does most of the steering so a substantial mount is not required. The correct servo to helm gearing and routing of the control lines requires careful design.
|Mounting:||Requires heavy mounts and struts, as all the steering loading relies on the Auxiliary rudder.
|Yes||Mounting Off centre:||Yes|
|lock the powerarm on cleats | Fair||Emergency Rudder use:||Excellent|
|Slacken airfoil clamp, Lower vane in slot &/or tilt back away from wind direction. Alternately fit heavy weather vane. | Good||Unsettled Sea Wind strength Beaufort 5 Increasing||Recommended use autopilot Or main helm. | Poor|
|Good||Vessel with weather helm||Poor,try reducing and/ or adjusting sail to remove weather helm|
|Good||Reaching –Wind on the quarter||Poor,try reducing and/ or adjusting rig.|
|Good||Light Wind||Good, on a flat sea|
|Very little loss in windward performance due to small rudder and vane. The Neptune is capable of tacking itself when the airfoil is rotated 180 degrees. It simply drives the ship around onto the opposite tack. The vessel sheets require releasing and hauling in. | Good||Sailing close to the wind||remember that large vane+ auxiliary rudder increases drag
|Use the main helm. Disconnect control lines. Rotate the servo rudder out the water. | Good||Manoeuvrability using Engine:||Auxiliary rudder hinders use of main helm.
|Rotate the servo rudder out of the water. | Easy||Removing Rudder:||A lanyard is attached, the locking device unlocked then the rudder should slip downwards off the rudder shaft bottom end
|Rotate Servo Rudder back into the water. | Easy||Installing Rudder||When under way almost impossible