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Top view of the Cheddar powered Boat
A close-up view of the Cheddar Puffin steam plant in the "Formidable" boat hull.
The arrangement of the electrically driven water pump can clearly be seen. The motor was a MFA geared type (28:1 I think) It worked very well, driven from an electronic speed controller via radio control. The dummy coal bunker hides the regulator servo.