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Propulsion

Steering the Mark-I boat

Ok, this has had me stumped for some time, however, writing up the last blog, I had a flash back to the tourist Amity Brig down at Albany. The steering ropes and windlass are all out in the open, so the kids and dad's love to peer over the edge and see how moving the wheel makes the rudder turn.

This is my go at it. Well, at least it's a start.

 

Pool testing a model of the Mark-I

I was concerned about the how well the Mark-I might turn with the motor mounted midship of the boat, so I decided to build a small 30cm model using 25mm PVC tubing. Out came the scrap pieces of MDF and hot glue gun. I had a CD-ROM drive lying around, so I dismantled it, and extracted the head positioning motor. Part of the case was cut up to became a dodgy looking propeller. The shaft was constructed from two 25mm nails, soldered together.

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