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Christchurch and District Model Flying Club |
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Water rudder design
The simple and very effective water rudder you see on Adrian’s Cub fits the bill perfectly: it’s directly controlled by the rudder and is at the point of maximum leverage so steering is precise and immediate. I suppose there are two limitations: I don’t suppose you can use rudder to steer at the point of take-off—it’s going too fast and would yaw wildly if you tried. The second is that it does not really look very...scale-like. One alternative, still keeping the steering connected to the rudder, would be to take a flexi-snake forward from the rudder horn down the side of the fuselage, curve it round the front UC leg and back to the top of one of the floats and make a rudder connection there. This keeps all the electrics out of the way of the water and allows you to experiment with rudder size and its effect on control. A dinghy-style “kick-up” system would prevent it getting broken off if it hit some weed or obstruction on the water or when coming ashore.
Perhaps our Club inventor, Malcolm MacKendrick, might take up this challenge?) |
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