Clockwork boat
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About this boat
Turned out to be a top of the range clockwork motor and she runs for about 7 minutes. I put in RC! This was for the rudder and also a stop on the motor. I found by the time I got low enough to launch her the motor had run down!
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The wind up key is 5mm diam. I had to make my own as a key manufacturer of bespoke keys said they were not interested. Most keys are about 4mm or less.
It takes 30 winds to get fully wound and the last few are quite tough on the hand.
The spring halfway through unwinding re-positions itself with a visible (on the water) jerk and upsets the balance of the boat. I fitted a piece of packing foam to limit how far the coiled spring could move sideways.
Speed is about walking pace and there is no speed control of course.
Roy